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Australian Glass Standards Facts Sheet
NSW Glass Masters has created this practical facts sheet to help homeowners, businesses, property managers and other customers better understand the Australian standards and safety requirements that may apply to glass used in buildings.
Glass requirements can vary depending on where the glass is installed, its size, the risk of human impact, wind loading, building design and the intended application. Standards including AS 1288 and AS/NZS 2208 are important references for the selection, safety and installation of glazing in Australian buildings.
This guide provides general information only and should not be used as a substitute for the applicable Australian Standards, National Construction Code requirements, engineering advice or project-specific professional assessment.
What Are Australian Glass Standards?
Australian Standards provide technical requirements and guidance for many aspects of building design, materials and construction. For glazing, these standards help establish how glass should be selected, tested and installed for different building applications.
One of the key standards for glazing in buildings is AS 1288:2021 – Glass in buildings – Selection and installation. It addresses matters including glass strength, human impact safety, wind loading, installation requirements and special applications such as barriers and overhead glazing.
Another important standard is AS/NZS 2208:2023 – Safety glazing materials in buildings, which sets testing requirements for safety glazing materials used in buildings. It covers safety glazing products such as laminated and toughened glass and is intended to help reduce the risk of cutting and piercing injuries when glass is broken.
These standards work alongside the National Construction Code and other applicable building requirements. The appropriate glass for a particular location can depend on factors such as the size and position of the glazing, its intended use, the likelihood of human impact, wind loads and the surrounding building design.
Important Standard Update
The safety glazing standard has changed over time.
The older AS/NZS 2208:1996 – Safety glazing materials in buildings was superseded by the 2023 edition. The standard was initially published as AS 2208:2023, and after further amendments it was redesignated AS/NZS 2208:2023 in 2025.
This means older documents, product information or references may still mention AS/NZS 2208:1996 or AS 2208:2023, while current references may identify the standard as AS/NZS 2208:2023.
When assessing glazing requirements, the applicable current standard, National Construction Code provisions and any project-specific requirements should always be checked.
Why Do Glass Standards Matter?
Glass that is suitable for one part of a building may not necessarily be suitable for another. Doors, bathrooms, low-level glazing, large windows, barriers and other higher-risk locations can have different safety and performance requirements.
Correct glass selection and installation helps reduce the risk of injury, glass failure and unsuitable glazing being used in areas where additional safety measures may be required.
Understanding AS 1288:2021
AS 1288:2021 – Glass in buildings – Selection and installation is one of the key Australian Standards used when selecting and installing glass in buildings.
It provides requirements and guidance relating to how glass is selected for different applications and considers factors such as the location of the glazing, glass dimensions, structural loading, human impact risk and installation method.
The requirements that apply can vary significantly depending on where the glass is being installed and how people are likely to interact with it.
The diagram above shows several common glazing locations where the selection and installation requirements of AS 1288 may be relevant.
These include windows, doors and sidelights, bathrooms, low-level glazing, barriers and balustrades, and overhead glazing.
The exact requirements for each application can differ depending on factors such as the dimensions of the glass, its height above floor level, the likelihood of human impact, structural loading and the way the glass is supported.
What Does AS 1288 Consider?
- glass type and thickness
- dimensions of the glazing
- location within the building
- wind loading
- human impact risk
- framing and support conditions
- fixing and installation methods
- barriers and balustrades
- overhead glazing
- other special glazing applications
The correct glass selection therefore cannot always be determined simply by looking at the size of an existing pane. The surrounding conditions and intended application also need to be considered.
Why AS 1288 Matters
Glass that is suitable in one part of a building may not be appropriate in another.
For example, glazing used in a standard window may be subject to different requirements from glass installed in a door, bathroom, low-level location, barrier or overhead application.
Selecting and installing appropriate glazing helps reduce the risk of glass failure, injury and unsuitable products being used in higher-risk areas.
AS 1288 and Building Requirements
AS 1288 operates alongside the National Construction Code and other applicable building, structural and glazing requirements.
The requirements that apply to an individual project can depend on the type of building, the location and purpose of the glazing, structural conditions and other project-specific factors.
For some glazing applications, additional engineering, certification or specialist assessment may also be required.
Not Every Piece of Glass Is the Same
AS 1288 does not require every window or glass panel to use the same type or thickness of glass.
Different glazing applications can require different solutions depending on their size, location and level of risk.
This is why replacing broken glass is not always simply a matter of reproducing whatever glass was previously installed.
Older buildings may also contain glazing that was installed under earlier requirements or that may no longer be considered suitable for the current application.
Understanding AS/NZS 2208:2023 Safety Glazing Materials
AS/NZS 2208:2023 – Safety glazing materials in buildings relates to the testing and classification of safety glazing materials used in buildings.
Safety glazing is designed to reduce the risk of serious injury if glass is impacted or broken. Depending on the application, safety glazing products can include toughened safety glass and laminated safety glass.
AS/NZS 2208 works alongside glass selection and installation requirements such as AS 1288. While AS/NZS 2208 deals with the performance and classification of safety glazing materials, AS 1288 helps determine where particular types of glazing may be required and how they should be selected and installed.
The infographic above demonstrates the general differences between ordinary annealed glass, toughened safety glass and laminated safety glass when breakage occurs.
The way glass behaves when broken is an important safety consideration. Different glazing products have different characteristics, and the appropriate product depends on the location, intended use and applicable glazing requirements.
Ordinary Annealed Glass
Annealed glass is standard untreated glass commonly used in applications where safety glazing is not specifically required.
When ordinary annealed glass breaks, it can form relatively large and sharp fragments. Because of this breakage behaviour, it may not be appropriate for locations where there is a significant risk of human impact.
Whether annealed glass is suitable depends on factors including the location of the glazing, its size, height, application and the requirements that apply to that particular installation.
Toughened Safety Glass
Toughened safety glass undergoes a controlled heat-treatment process that increases its strength compared with ordinary annealed glass.
When properly manufactured toughened glass breaks, it is designed to fragment into many relatively small pieces rather than the larger sharp shards commonly associated with ordinary annealed glass.
This breakage characteristic helps reduce the risk of serious cutting and piercing injuries and is one reason toughened glass is commonly used in safety-critical glazing applications.
Toughened safety glass must be appropriately manufactured, tested and classified where compliance with safety glazing requirements is required.
Laminated Safety Glass
Laminated safety glass consists of two or more layers of glass bonded together using an interlayer.
If the glass breaks, the interlayer helps hold the broken pieces together rather than allowing the entire pane to fall apart immediately.
This can help reduce the risk of loose sharp fragments and may also provide additional benefits in some applications, including improved retention of the broken glass and enhanced security.
The exact laminated glass composition and thickness required depends on the application and applicable glazing requirements.
Toughened vs Laminated Safety Glass
Toughened and laminated glass can both be classified as safety glazing materials, but they behave differently when broken and are not automatically interchangeable in every application.
Toughened glass is designed to break into many relatively small fragments, while laminated glass is designed so that broken pieces remain substantially held together by the interlayer.
The appropriate product should be selected according to the glazing location, dimensions, structural requirements, human impact risk and any other applicable building or safety requirements.
Safety Glass Does Not Mean Unbreakable Glass
Safety glazing is designed to reduce particular risks associated with glass breakage. It does not mean that the glass cannot break.
Toughened glass, laminated glass and other glazing products can still fail when subjected to sufficient impact, damage, excessive loading, edge damage, structural movement or other conditions.
The purpose of safety glazing requirements is to help manage the consequences and risks associated with glass in particular building locations.
How AS/NZS 2208 and AS 1288 Work Together
It is useful to think of the two standards as addressing different parts of the glazing process.
AS/NZS 2208 deals with the testing and classification of safety glazing materials.
AS 1288 deals with the selection and installation of glass in buildings and helps determine what glazing may be appropriate for a particular location and application.
A safety glazing product therefore still needs to be correctly selected, sized and installed for the location in which it is being used.
Where Safety Glass May Be Required
Safety glass requirements can apply to a number of locations within homes, businesses and other buildings where there is a greater risk of people coming into contact with glazing or where broken glass could create a significant safety hazard.
The type of glass required depends on the particular application. Factors such as the position of the glass, its dimensions, height above floor level, proximity to doors or walking areas and the likelihood of human impact can all affect the appropriate glazing solution.
Common locations where safety glazing requirements may apply include doors, sidelights, bathrooms, low-level glazing, stairs, barriers, balustrades and overhead glazing.
The diagram above highlights several common parts of a building where safety glazing may need to be considered.
It is important to understand that the presence of glass in one of these locations does not by itself determine the exact glass specification. The required glass type, thickness and installation method depend on the circumstances of the individual installation and the applicable requirements.
Doors and Sidelights
Glass used in doors and immediately surrounding doorways can be exposed to a higher risk of human impact because people regularly walk through or alongside these areas.
Safety glazing may therefore be required in many entry doors, sliding doors, glass doors and sidelights.
The appropriate glass depends on factors including the size and location of the glazed panel, the type of door and the applicable glazing requirements.
Bathrooms and Shower Areas
Bathrooms are another important area for safety glazing because wet surfaces, restricted spaces and close proximity to glass can increase the potential risk of accidental impact.
Glass used in shower screens, bath screens, doors, panels and certain windows within bathroom areas may be subject to specific safety glazing requirements.
Suitable glass should be selected according to the location, dimensions and intended use of the installation.
Low-Level Glazing
Glass positioned close to floor level can present a greater risk of accidental human impact.
People may walk, fall or move furniture into low-level glazing, particularly where a large transparent panel may not be immediately obvious.
Depending on the size, height and location of the glass, safety glazing or other protective measures may be required.
Windows
Not every window requires safety glass, but some windows can be located or configured in a way that increases the risk of human impact.
The size of the pane, height above floor level, proximity to doors, location within the building and other factors can affect the type and thickness of glass that is appropriate.
Large glazed panels and windows positioned in higher-risk areas require particular consideration.
Stairs and Internal Glazing
Glass near stairs, landings, walkways and other areas where people move through a building can be exposed to increased impact risk.
Internal glass panels, stair glazing and glazing near changes in floor level may therefore require additional safety consideration.
The surrounding building design and the function of the glass are important when determining an appropriate glazing solution.
Barriers and Balustrades
Glass used as part of a barrier or balustrade performs a different function from ordinary window glazing.
In these applications, the glass and supporting system may need to resist structural loads and help prevent people from falling from one level to another.
Glass balustrades, balcony barriers and similar installations can therefore be subject to specific glass selection, structural and installation requirements.
Where required, engineering or other specialist assessment may also be necessary.
Overhead Glazing
Overhead glazing includes applications such as skylights, glazed roofs, canopies and other glass installed above areas where people may pass or remain underneath.
Because glass failure in an overhead location can create additional hazards, these applications can require particular consideration of glass type, retention, structural loading and installation.
The correct solution depends on the design and circumstances of the individual installation.
Safety Glass Requirements Depend on the Application
There is no single glass type or thickness that is suitable for every safety glazing location. The appropriate glass must be determined by considering the location, dimensions, use, impact risk, structural requirements and any other applicable building or glazing requirements. For this reason, replacing glass should involve identifying what is appropriate for the current application rather than automatically copying the glass that was previously installed.
Windows and Glass Selection
Window glass selection involves more than simply measuring the opening and replacing the existing pane with glass of the same thickness.
The appropriate glass can depend on the size and shape of the pane, its height above floor level, location within the building, wind exposure, risk of human impact, framing system and other conditions affecting the installation.
Different window styles can also create different glazing requirements. Sliding windows, awning windows, louvre windows, fixed panes, casement windows and larger feature windows may each need to be assessed according to their individual size, location and intended use.
The diagram above shows some of the common factors that can affect glass selection for windows.
No single factor determines the correct glass on its own. The overall glazing application needs to be considered, including how large the pane is, where it is positioned, how it is supported and the conditions it may experience during normal use.
Window Size and Dimensions
The dimensions of a glass pane can influence the type and thickness of glass required.
As the size of a pane increases, the loads acting on the glass and the amount of movement or deflection that can occur may also increase.
Large fixed panes and expansive architectural windows can therefore require different glass specifications from smaller conventional windows.
The shape and aspect ratio of the glass can also be relevant when determining an appropriate glazing solution.
Height Above Floor Level
The position of glazing relative to the floor is an important consideration, particularly where people may accidentally walk, fall or move objects into the glass.
Windows positioned at lower levels may present a greater risk of human impact than glazing positioned well above normal walking areas.
Depending on the dimensions, location and surrounding conditions, low-level glazing may require safety glass or another appropriate protective solution.
Human Impact Risk
Some windows are located in areas where there is a greater likelihood of people coming into contact with the glass.
Examples can include glazing near doors, entrances, corridors, walkways, stairs or frequently used living areas.
Where the risk of human impact is greater, additional safety glazing requirements may apply.
The assessment should consider how people normally use and move through the surrounding space.
Wind Loading
Windows must also be capable of resisting the wind pressures that can act on a building.
Wind loading can vary depending on factors such as the building location, height, surrounding terrain, exposure and the position of the window within the structure.
Glazing in exposed locations or larger openings may therefore require different glass thicknesses or specifications from glazing in more protected locations.
For certain projects, structural or engineering information may be required to determine the appropriate glazing requirements.
Window Type and Framing
The way glass is supported by the surrounding frame can influence how loads are transferred through the pane.
Different window systems can use different framing, clearances, glazing channels, seals and fixing methods.
The glass must therefore be suitable not only for the opening itself but also for the framing and installation system in which it will be used.
Replacing Existing Window Glass
When replacing broken or damaged window glass, the existing pane can provide useful information about the original installation, but it should not automatically be assumed that the same glass is still the most appropriate choice.
Building requirements, glazing standards, safety expectations or the use of the surrounding area may have changed since the original glass was installed.
The replacement should be assessed according to the current application and applicable requirements.
This is particularly important in older properties, where glazing may have been installed many years ago under different requirements.
A Thicker Piece of Glass Is Not Automatically the Correct Glass
Glass thickness is only one part of glass selection. The correct glazing solution can depend on the glass type, pane dimensions, location, framing, wind loading, human impact risk and applicable safety requirements. For example, a thicker piece of ordinary annealed glass is not automatically an appropriate substitute where safety glazing is required.
Professional Assessment Helps Identify the Right Solution
A professional glazing assessment can help identify the existing glass, measure the opening, review the surrounding conditions and determine an appropriate replacement option.
For unusual, large, highly exposed or structurally significant glazing, additional information or specialist assessment may also be required.
Doors, Sidelights & Glass Safety
Glazed doors, sidelights and glass panels positioned around doorways are common areas where additional safety considerations can apply.
Because people regularly walk through, beside and around doors, glass in these locations may be exposed to a greater risk of accidental human impact than glazing in some other parts of a building.
The appropriate glazing depends on factors including the type of door, size and position of the glass, height above floor level, surrounding layout, framing system and applicable glazing requirements.
The diagram above shows several common door and sidelight glazing configurations where human impact risk needs to be considered.
These locations can include entry doors, sliding doors, sidelights, internal glazed doors, bi-fold doors, French doors and glass panels positioned immediately beside a doorway or walkway.
The exact glass specification should be determined for the individual application rather than assumed from the appearance of the existing glass.
Glazed Entry Doors
Glass incorporated into an entry door can be located directly within a normal walking path and may therefore be exposed to a greater likelihood of human impact.
Depending on the size, position and design of the glazed area, safety glazing may be required.
The door frame, opening method and surrounding building layout should also be considered when selecting an appropriate glass solution.
Sidelights Beside Doors
Sidelights are narrow or full-height glass panels positioned beside a door.
Because they are often located at walking height and immediately adjacent to an entrance or exit, they can present an increased risk of accidental human impact.
The dimensions of the sidelight, its distance from the doorway, height above floor level and surrounding conditions can all affect the glazing requirements that apply.
Sliding Glass Doors
Sliding glass doors commonly contain large glazed panels and are frequently used in high-traffic areas between indoor and outdoor spaces.
Their large size and position within a normal walking path make glass selection particularly important.
The glazing may need to satisfy requirements relating to human impact, pane dimensions, structural loads, framing and other conditions associated with the installation.
Other Glazed Door Types
Hinged glass doors, French doors, bi-fold doors and similar systems can also contain large areas of glazing in locations where people regularly pass.
The appropriate glass should be assessed according to the door design, panel dimensions, intended use and applicable safety requirements.
Multiple-panel door systems may also require consideration of how the individual panels are supported, operated and exposed to impact.
Adjacent Glass Panels
Glass positioned beside, above or around a doorway can sometimes appear to be part of an ordinary wall or window system even though it is located within a higher-risk pedestrian area.
Panels close to entrances, exits, corridors and frequently used walkways may therefore require additional consideration.
The relationship between the glass and the surrounding doorway is an important part of assessing human impact risk.
Low-Level Glass Around Doors
Glass extending close to floor level around a doorway may be particularly exposed to accidental impact from people, furniture or other objects.
Low-level glazing should be assessed according to its dimensions, position and surrounding use.
In some applications, safety glazing or another appropriate protective solution may be required.
Existing Glass May Not Always Be Easy to Identify
It is not always possible to determine the exact type of installed glass simply by looking at it.
Safety glass may carry permanent identification markings, but markings can sometimes be difficult to locate or read depending on the installation.
Other factors such as the age of the property, glass breakage pattern, thickness, construction and available documentation may also help when assessing existing glazing.
Where the existing glass cannot be confidently identified, the replacement should be selected according to the requirements of the current application rather than relying solely on assumptions about what was previously installed.
Door Glass Is a High-Impact Consideration
Doors and the glass immediately surrounding them are among the most common building areas where human impact needs to be considered carefully. A person may walk directly into a glazed door or sidelight, particularly where large transparent panels are difficult to see. Appropriate glass selection, installation and visibility can therefore play an important role in reducing the risk of injury.
Replacing Broken Door Glass
When broken door glass is replaced, the new glazing should be assessed according to the current door configuration and intended use.
The replacement should not automatically copy the original glass type or thickness without considering whether the existing glazing is appropriate for the location.
This is especially important in older properties where the original installation may have been completed under earlier requirements.
Bathrooms, Showers & Wet-Area Glazing
Bathrooms and other wet areas can present a higher risk of accidental impact with glass because of wet surfaces, confined spaces and the close proximity of people to glazing.
Shower screens, shower doors, bath screens, bathroom windows and other glass installations within these areas may therefore require particular consideration when selecting an appropriate glazing product.
The correct glass depends on the location, dimensions, intended use, framing system and applicable glazing requirements.
The diagram above shows several common bathroom and wet-area glazing applications where safety needs to be considered carefully.
Because people can be close to glass while standing on wet or slippery surfaces, the consequences of accidental impact can be greater than in some other parts of a building.
Appropriate safety glazing, suitable hardware and correct installation are therefore important considerations in these locations.
Shower Screens
Shower screens are positioned directly beside people during normal bathroom use and are therefore an important safety glazing application.
Both framed and frameless shower screen systems need glass that is suitable for the particular design, dimensions and supporting hardware.
The type and thickness of glass required can depend on the screen configuration, panel size, supports, openings and other characteristics of the installation.
Shower Doors
Shower doors can be hinged, sliding or incorporated into larger shower-screen systems.
Because the door is regularly moved and handled, the glass and associated hinges, rollers, channels and fittings need to be suitable for the intended installation.
Glass selection should consider the size and design of the door together with the applicable safety glazing requirements.
Bath Screens
Glass panels installed beside or above a bath can also be located in an area where accidental impact is reasonably foreseeable.
Bath screens may be fixed, hinged or incorporated into a larger shower-over-bath enclosure.
The appropriate glass should be selected according to the panel dimensions, location, fixing system and intended use.
Bathroom Windows
Not every bathroom window necessarily requires the same type of glass.
Factors such as the size of the window, height above floor level, proximity to a bath or shower, likelihood of human impact and surrounding layout can influence the appropriate glazing.
A small window positioned well above normal contact areas may present different considerations from a large low-level window beside a bath or shower.
Glazing Near Bathroom Fixtures
Glass positioned close to baths, showers, toilets, vanities, doorways or bathroom walkways can be located within areas where people regularly move.
The closer glazing is to normal movement and activity, the more important it becomes to assess potential human impact risk.
The surrounding bathroom layout should therefore be considered when selecting replacement or new glass.
Bathroom Mirrors
Mirrors are also glass products and their size, position and method of installation can affect the consequences if they are damaged or broken.
Large mirrors, low-level mirrors or mirrors positioned in locations where significant human impact is possible may require additional safety consideration.
The appropriate mirror product and installation method should be selected according to the specific application.
Frameless Shower Glass
Frameless shower screens rely heavily on the glass itself together with specialised hinges, brackets, channels and other hardware.
Because there is less framing surrounding the glass, accurate measurement, suitable glass selection and correct hardware positioning are particularly important.
Holes, cut-outs and other processing required for hardware are generally completed before toughening, as toughened glass cannot normally be cut or drilled after the toughening process has been completed.
Bathroom Safety Glass Is Still Breakable
Safety glass is designed to reduce particular risks associated with breakage. It does not make shower screens, bath screens or other bathroom glazing impossible to break. Impact, damaged edges, unsuitable hardware, structural movement or other stresses can still cause glass failure. Correct glass selection, handling and installation help reduce unnecessary risk.
Replacing Broken Bathroom Glass
When bathroom or shower glass is broken, the replacement should be assessed according to the current installation rather than automatically duplicating the original pane.
The size, glass type, hardware, mounting method and surrounding bathroom layout should all be considered.
Older bathrooms may contain glazing installed under earlier requirements, so the appropriate current replacement can differ from the glass that was originally fitted.
Do Not Attempt to Reuse Damaged Safety Glass
Glass with cracks, chips, damaged edges or other significant defects should be assessed before continued use.
Damage to the edge of toughened glass can be particularly important because the edge forms part of the structural integrity of the pane.
Where bathroom glazing is damaged or its condition is uncertain, professional assessment is recommended before the area continues to be used.
Low-Level Glazing & Human Impact Areas
Glass positioned close to floor level or within areas where people regularly walk, move, play or could fall can present an increased risk of accidental human impact.
Low windows, full-height glass panels, glazing beside walkways, glass near doors and glazing around stairs or changes in floor level may therefore require additional safety consideration.
The appropriate glass depends on factors including the size and position of the pane, its height above floor level, surrounding traffic, risk of human impact, framing system and applicable glazing requirements.
The diagram above shows several common glazing locations where accidental human impact may be more likely.
These areas can include glass close to floor level, full-height windows, glazing beside walkways, glass around doors and sidelights, stair areas and other locations where people may fall or move directly toward a glazed surface.
The exact safety requirements depend on the individual installation and should not be determined from height or appearance alone.
Glass Close to Floor Level
Glass positioned close to floor level may be more likely to be struck by a person, furniture or another object during normal use of a building.
The size of the pane, its distance above the floor and the way the surrounding area is used can affect whether additional safety measures or safety glazing are appropriate.
A small window in a protected location can present very different considerations from a large pane extending close to floor level in a frequently used room.
Floor-to-Ceiling Windows & Large Glass Panels
Large or full-height glazed panels can create impressive open spaces and natural light, but they can also be located directly within normal walking and living areas.
Because large transparent panels may sometimes be difficult to see, the potential for accidental human impact needs to be considered carefully.
The pane dimensions, glass type, thickness, framing and surrounding use all form part of determining an appropriate glazing solution.
Glazing Beside Walkways
Glass installed beside hallways, corridors, entrances and other frequently used walkways may be exposed to a greater likelihood of accidental contact.
The risk can increase where glazing extends close to floor level or where large transparent panels form part of the wall surrounding a pedestrian area.
The normal movement of people through the space should therefore be considered when assessing the glazing.
Glass Near Doors and Entrances
Glazing beside doors, entryways and exits can be exposed to increased pedestrian traffic and may sit directly within a normal walking path.
Sidelights, adjacent panels and surrounding glass should be considered together with the doorway rather than treated as completely separate glazing elements.
The location and dimensions of the glass can affect the safety requirements that apply.
Glazing Near Stairs, Landings & Level Changes
Glass located near stairs, landings, ramps, edges or changes in floor level can present additional risks because a person may fall toward the glazing with greater force.
In these locations, the function of the glass and its relationship to the surrounding structure become particularly important.
Where the glass also forms part of a barrier or balustrade, additional structural and safety requirements can apply.
Furniture and Objects Near Glass
Human impact is not the only consideration for low-level glazing.
Furniture, equipment, toys and other objects can also strike glass during normal use of a property.
The way a room is arranged and used can therefore influence the practical risk associated with glazing, particularly where large panes extend close to floor level.
Making Large Transparent Glass Easier to See
Large transparent glass panels can sometimes be difficult to recognise as a physical barrier, particularly in open-plan spaces, entrances and commercial environments.
Depending on the application, visual markings, manifestation or other visibility measures may be used to help people recognise the presence of the glass.
Any visibility treatment should be appropriate for the building, glazing system and applicable requirements.
Low-Level Does Not Automatically Mean Unsafe
The position of a glass pane close to floor level does not automatically mean that the glazing is unsuitable. Glass selection depends on several factors working together, including the pane dimensions, exact location, human impact risk, glass type, framing system and surrounding building use. The installation should be assessed as a whole rather than relying on one measurement or characteristic.
Replacing Existing Low-Level Glazing
Older homes and buildings may contain low-level glass that was installed many years ago under earlier glazing requirements.
When this glass breaks or requires replacement, the existing pane should not automatically be treated as the correct specification for the new installation.
The current location, dimensions, use and applicable requirements should be considered when selecting replacement glass.
Human Impact Risk Should Be Assessed Before Replacement
Where glazing is located within a frequently used area, close to floor level, beside a walkway or in a location where a person could fall into the glass, human impact risk should form part of the replacement assessment.
This helps ensure the selected glass is appropriate for how the building is currently used rather than simply reproducing an older installation.
Glass Balustrades, Barriers & Pool Fencing
Glass used in balustrades, barriers and pool fencing performs a more critical safety function than ordinary decorative or window glazing.
These installations can be used around balconies, stairs, landings, decks, swimming pools, internal voids and other areas where there may be a risk of falling or where access needs to be restricted.
The glass, supporting structure, fixings and installation system must therefore be appropriate for the particular application and capable of meeting the relevant safety, structural and building requirements.
The diagram above shows several common situations where glass can form part of a protective barrier.
Unlike an ordinary window pane, barrier glazing can have an important role in preventing people from falling, restricting access or providing protection around an elevated area.
This means the glass cannot be considered in isolation. The complete system — including glass type, thickness, supports, posts, channels, clamps, handrails and other fixings — may all contribute to the safety and performance of the installation.
Balcony & Deck Glass Balustrades
Glass balustrades are commonly used on balconies, decks and terraces to provide fall protection while maintaining an open appearance.
Because the glazing forms part of a barrier, it may need to resist loads created by people leaning against, pushing on or accidentally impacting the system.
The appropriate glass specification depends on factors including the panel dimensions, height, supporting system, location and design of the balustrade.
The complete barrier system should be considered rather than assessing only the glass panel itself.
Stair & Landing Balustrades
Glass used beside stairs, landings and changes in floor level can provide protection against falls while also forming part of the architectural design.
These locations can experience different loads and impact risks from ordinary windows.
The glass, handrails, posts, clamps, channels and other supporting components should be suitable for the intended use and installed as part of an appropriate barrier system.
Glass Pool Fencing
Glass pool fencing is designed to provide a protective barrier around swimming pools while maintaining visibility through the enclosure.
Pool fencing requirements involve more than glass selection alone.
The height of the barrier, gaps, gates, latching arrangements, surrounding objects, fixing system and overall installation can all affect whether a pool barrier is suitable.
Glass pool fencing must therefore be considered together with applicable pool safety, building and glazing requirements.
Frameless & Semi-Frameless Systems
Frameless glass barriers may appear simple, but their performance depends heavily on the relationship between the glass and its supporting hardware.
Spigots, base channels, clamps, anchors and other connections need to be appropriate for the particular system and installation conditions.
A glass panel should not be considered compliant simply because it is toughened or because it appears sufficiently thick. The complete barrier assembly and its intended use matter.
Internal Voids & Elevated Areas
Glass barriers may also be installed around mezzanines, internal voids, raised floors, galleries and other locations where there is a potential fall to a lower level.
In these situations, glazing can perform both an architectural and a protective function.
The greater the potential consequence of a barrier failure, the more important it becomes to assess the complete installation, including the glass, supports, fixings and surrounding structure.
Structural Loads & Barrier Performance
Barrier glazing may be exposed to people leaning against it, accidental impact, wind and other forces associated with its location and use.
Australian building requirements therefore consider more than simply whether the glass is classified as safety glass.
The dimensions of the panel, glass construction, support conditions, loading, fixings and overall barrier configuration can all influence what is appropriate for a particular installation.
Fixings & Supports Matter
Even correctly selected glass relies on the surrounding system to perform properly.
Loose or damaged spigots, deteriorated channels, inadequate anchors, movement in supporting structures or unsuitable replacement hardware can affect the performance of a glass barrier.
For this reason, replacing a damaged barrier panel should include consideration of the existing supporting system rather than treating the job as a simple glass replacement.
Damaged Barrier Glass
Cracked, chipped, displaced or otherwise damaged glass in a balustrade or safety barrier should be assessed promptly.
Damage near edges, holes, clamps or fixing points can be particularly important because these areas are involved in transferring loads between the glass and the supporting system.
If there is concern that a barrier is unstable or unsafe, people should be kept away from the affected area until it can be properly assessed.
Older Glass Barriers
An older glass barrier should not automatically be assumed to meet requirements that apply to new work today.
Standards, building requirements and accepted construction practices can change over time, and the condition of the glass, fixings and supporting structure may also deteriorate.
When older barrier glazing is damaged, altered or replaced, the existing system may need to be reviewed before selecting replacement glass.
When Specialist or Engineering Assessment May Be Required
Some glass barrier installations may require additional design information, engineering input or assessment by an appropriately qualified professional. This may be particularly relevant for unusual panel sizes, high-load locations, complex frameless systems, significant fall heights, structural modifications or installations where the capacity of the supporting structure is uncertain. Important: Glass used as a balustrade, fall barrier or pool barrier should never be treated as ordinary window glass. The correct solution depends on the complete installation and the requirements applying to that particular building, location and use. This information is provided as a general guide only. Project-specific requirements should be confirmed against the applicable legislation, National Construction Code provisions, Australian Standards, manufacturer requirements and any necessary professional or engineering advice.
Overhead Glazing, Skylights & Canopies
Overhead glazing requires additional consideration because the glass is positioned above people, occupied spaces, entrances, walkways and other areas where falling or displaced glass could create a significant safety risk.
Skylights, glass roofs, entrance canopies and other overhead glazed panels therefore need to be selected and installed for their particular application rather than treated in the same way as ordinary vertical window glass.
The diagram above shows several common situations where glass is installed above people, including skylights, glass roofs, entry canopies and other overhead glazing.
Unlike ordinary vertical window glass, overhead glazing can create additional safety considerations because damaged or displaced glass may affect people or occupied areas below.
This means the glass cannot be considered in isolation. The complete system — including glass type, panel size, framing, supports, fixings, structural loading and retention — may all contribute to the safety and performance of the installation.
Skylights & Roof Lights
Skylights and roof lights are commonly used to introduce natural light into homes, commercial buildings and other enclosed spaces.
Because the glazing is positioned above occupants, glass selection needs to consider more than appearance or light transmission. Panel dimensions, glass construction, slope, support conditions, wind exposure, installation method and the consequences of breakage can all influence what is appropriate for a particular application.
The complete skylight system also matters. Glass, framing, seals, fixings and supporting components need to work together as part of the installation.
Glass Roofs
Glass roofs can range from individual glazed roof panels to larger glazed structures covering living areas, courtyards, commercial spaces and outdoor areas.
These installations may be exposed to wind, self-weight, weather, thermal movement and other forces while also being positioned directly above occupied spaces.
For this reason, the glass cannot be considered in isolation. The framing system, panel dimensions, supports, fixings and surrounding structure all contribute to the performance of the completed installation.
Entry Canopies & Awnings
Glass canopies are commonly installed above building entrances, shopfronts, pathways and outdoor areas.
Unlike ordinary vertical glazing, people may regularly walk or stand directly underneath a canopy. This makes the consequences of glass damage, displacement or failure particularly important.
The glass type, panel dimensions, support method, fixings, structural loading and way the glazing is retained may all need to be considered as part of the complete installation.
Overhead Glass Panels
Overhead glass may also be incorporated into covered walkways, pergolas, atriums, architectural features and other structures.
The fact that a glass panel is toughened or laminated does not automatically mean that it is suitable for every overhead application.
Its glass construction, dimensions, support arrangement, location, loading conditions and the consequences of breakage may all influence the appropriate glazing solution.
Why People Below Increase the Risk
One of the major differences between ordinary vertical glazing and overhead glazing is the potential consequence of glass becoming damaged or displaced above an occupied area.
Where people regularly pass or remain underneath the glazing, consideration needs to be given to what may occur if a panel cracks, breaks or becomes dislodged.
This is why both the glass itself and the way it is supported and retained are important parts of an overhead glazing installation.
Glass Selection & Breakage Behaviour
Different types of glass can behave differently when damaged.
Toughened safety glass generally breaks into many smaller fragments rather than the larger sharp pieces typically associated with ordinary annealed glass.
Laminated glass contains an interlayer that can help hold broken glass fragments together after breakage, depending on the glass construction and circumstances.
However, glass type should not be selected from breakage behaviour alone. The complete overhead application, panel dimensions, loading, support system and applicable requirements need to be considered together.
Structural Loading
Overhead glazing may be subjected to wind pressure, self-weight, thermal movement and other forces associated with the building, environment and particular installation.
The size and shape of the glass panel, its thickness and construction, the way it is supported and the characteristics of the surrounding structure can all affect how those loads are transferred.
Simply increasing glass thickness does not automatically make an overhead glazing installation suitable.
Retention, Framing & Fixings
The glass is only one component of an overhead glazing system.
Frames, channels, brackets, structural supports, seals, fasteners and other components may all contribute to keeping the glazing securely positioned.
Where retention following glass damage is an important consideration, the complete assembly needs to be assessed rather than looking at the glass panel in isolation.
Deteriorated, loose, damaged or unsuitable supporting components may also affect the performance of an otherwise appropriately selected glass panel.
Weather, Drainage & Movement
External skylights, glass roofs and canopies are also exposed to changing weather conditions.
Water management, drainage, seal condition, thermal expansion and movement between different building materials can all affect the long-term performance of an overhead glazing system.
These factors may not determine the required glass type by themselves, but they are important when assessing the overall installation.
Replacing Damaged Overhead Glass
Broken or damaged overhead glazing should not automatically be treated as a simple like-for-like glass replacement.
Before replacement glass is selected, the existing glass type, panel dimensions, slope, support system, location and intended use should be considered.
Where the original glass cannot be positively identified, or where the supporting system is damaged or uncertain, additional assessment may be required before replacement work proceeds.
Damaged Overhead Glazing
Cracks, chips, movement or other visible damage to overhead glazing should not be ignored.
Damage around glass edges, fixing points, supports or frames may be particularly important because these areas can form part of the way the glass is supported and retained.
Where there is concern that overhead glass or its supporting system may be unstable, access beneath the affected area should be restricted until the installation can be appropriately assessed.
Older Skylights, Roofs & Canopies
Older overhead glazing may have been installed under different standards, building requirements or construction practices.
Age and exposure can also affect seals, frames, fixings and supporting components even where the glass itself appears intact.
When older overhead glazing is damaged, replaced or substantially altered, the existing installation may need to be reviewed rather than simply copying the original glass panel.
When Specialist or Engineering Assessment May Be Required
Some overhead glazing installations may require specialist design information or assessment by an appropriately qualified professional.
This may be relevant for large glass panels, complex glass roofs, structural canopies, unusual support arrangements, highly exposed locations or installations where the capacity of the supporting structure is uncertain.
Additional assessment can be particularly important where failure of the glazing or supporting system could affect people underneath.
Overhead Glazing Requires Specific Assessment
Overhead glazing should not be treated in the same way as ordinary window glass. Skylights, roof glazing, canopies and other glass positioned above people may require specific consideration of glass type, panel dimensions, structural loads, supporting systems and retention requirements. Requirements depend on the particular building, location, glazing system and application.
General information disclaimer
This information is provided as a general guide only and is not a substitute for project-specific assessment. Applicable requirements should be confirmed against the relevant National Construction Code provisions, Australian Standards, manufacturer requirements and any necessary professional or engineering advice.
How to Identify Safety Glass & Glass Markings
Safety glass can sometimes be identified by markings, labels or other information applied by the manufacturer or supplier.
These markings can provide useful information about the glass, but identifying an existing pane is not always as simple as looking for a particular word or symbol. Markings can vary, labels may no longer be present and some characteristics of the glass may not be obvious once it has been installed.
For this reason, a visible marking can be an important identification tool, but the complete glazing installation and its intended application still need to be considered.
The diagram above shows several common ways safety glass may be identified, including markings, labels, manufacturer information and visible features of laminated glass.
A safety-glass identification mark can provide useful information about the type of glass and the standard to which it has been tested. However, markings and identification methods can vary, particularly between different products, manufacturers and installation periods.
This means glass should not be identified from appearance alone. Where the glass type or suitability of an existing installation is uncertain, further assessment may be needed before the glass is repaired, replaced or relied upon as safety glazing.
Safety Glass Identification Marks
Safety glazing may carry an identification mark or label that provides information about the glass product.
Depending on the applicable requirements and product, this information can help identify matters such as the standard to which the glass has been tested, the manufacturer or supplier, the type of safety glass, its grade and its nominal thickness.
The exact appearance and format of identification can vary, so homeowners should not expect every piece of safety glass to display an identical logo, stamp or layout.
Toughened Safety Glass Markings
Toughened safety glass may be identifiable by a marking or label indicating the type of glass together with other required product information.
On installed glass, a permanent mark may sometimes be found near a corner or edge of the pane, although the precise position and appearance can vary between products.
Finding a marking can help with identification, but the wording or appearance of a stamp should still be interpreted in the context of the complete installation and its intended use.
Laminated Safety Glass Identification
Laminated safety glass consists of multiple layers of glass bonded with an interlayer.
Depending on the product and installation, identification information may indicate that the glass is laminated safety glass and provide other relevant product details.
The laminated construction can also sometimes be visible at an exposed glass edge, where the interlayer between the glass layers may be seen.
However, an exposed edge is not always available for inspection and the interlayer itself should not be relied upon as the only method of determining whether a particular pane meets the requirements for its application.
What the Marking May Tell You
Safety-glass identification can provide useful information about the product itself.
Depending on the marking or label, this may include the glass type, manufacturer or supplier, nominal thickness, safety-glass grade and the standard against which the product has been tested.
This information can be particularly useful when assessing existing glazing or determining an appropriate replacement.
Identification Markings vs Visibility Markings
A safety-glass identification mark and a visibility marking are not the same thing.
An identification mark or label provides information about the safety-glazing product.
A visibility marking is intended to make a large or potentially unnoticed glass panel easier for people to see. Depending on the application, this may take the form of an opaque band, motif or other visible treatment.
Making a glass panel more visible does not replace the need for the correct safety glazing where safety glazing is required.
What If There Is No Visible Marking?
If an obvious safety-glass marking cannot be found, it should not automatically be concluded that the pane is ordinary glass or that the installation is non-compliant.
Identification labels, product markings and installation practices can differ, particularly with older glazing. A removable identification label used during construction may also no longer be present once the building work has been completed.
Conversely, the absence of an obvious mark should not be treated as proof that the glass is suitable safety glazing either.
Where identification matters, the glass and surrounding installation may need further assessment rather than relying on the presence or absence of a visible stamp alone.
Older Glass & Uncertain Installations
Existing buildings may contain glazing installed under earlier standards, building requirements or construction practices.
Markings may also be difficult to locate, weathered, obscured by framing or unavailable where identification originally relied on labelling that is no longer present.
For this reason, older glass should not automatically be declared unsafe simply because its type cannot immediately be identified.
Where existing glass is being replaced, altered or relied upon in a safety-critical location, its current application and the requirements relevant to the proposed work may need to be reviewed.
Why Appearance Alone Is Not Enough
Clear glass can look very similar regardless of whether it is annealed, toughened or laminated.
Tint, colour, frosting, texture or thickness also do not necessarily establish whether a pane is safety glass or whether it is suitable for a particular location.
Even where a glass type can be identified, that alone does not confirm that the complete installation is appropriate. Panel dimensions, location, support conditions, human-impact risk and other application-specific factors can also matter.
Glass selection should therefore be based on more than appearance alone.
Glass Thickness Does Not Identify the Glass Type
Glass thickness by itself does not determine whether a pane is toughened, laminated, annealed or otherwise suitable for a particular safety application.
Different glass products can be manufactured in similar thicknesses while having very different construction, breakage behaviour and intended uses.
Thickness is therefore only one part of glass selection and should not be used by itself to identify safety glazing.
When Professional Assessment May Be Appropriate
Professional assessment may be appropriate where the existing glass type cannot be positively identified, where the glazing is damaged or where the pane forms part of a safety-critical installation.
This can be particularly relevant for doors, bathrooms, low-level glazing, balustrades, pool barriers, overhead glazing and other locations where the consequences of incorrect glass selection may be greater.
A glazier can consider the existing glass together with its dimensions, location, framing, supports and intended application before determining the appropriate next step.
A Glass Mark Is Only Part of the Assessment
A safety-glass marking can provide valuable information about a glass product, but it does not by itself confirm that the complete glazing installation is suitable for every location or application. Glass type, dimensions, position, framing, supports, human-impact risk and other relevant requirements may also need to be considered.
GENERAL INFORMATION DISCLAIMER
This information is provided as a general guide only and should not be used as the sole method of identifying or assessing safety glazing. Requirements for a particular installation should be confirmed against the applicable National Construction Code provisions, Australian Standards, manufacturer information and any necessary professional advice.
Replacing Existing Glass & Current Requirements
Replacing broken or damaged glass is not always as simple as installing another pane that looks the same as the original.
The appropriate replacement can depend on the location of the glass, its dimensions, the way it is supported, the intended use of the area and the requirements that apply to the replacement work.
This is particularly important where older glazing is being replaced in doors, bathrooms, low-level areas, barriers, overhead locations and other situations where safety considerations may be greater.
The diagram above shows some of the main considerations that can arise when existing or damaged glass is replaced.
A replacement pane should not automatically be selected simply by copying the apparent type or thickness of the original glass. The existing installation, location, panel dimensions, framing, supports and intended use may all need to be considered.
Where requirements, glazing practices or the use of the building have changed since the original installation, the appropriate replacement may differ from the glass that was previously installed.
Assess the Existing Installation
Before replacement glass is selected, the existing installation should be considered as a whole.
Relevant factors can include the type of glass already installed, panel dimensions, location, height above floor level, surrounding framing, support conditions and how the area is used.
Damage to the frame, channels, beads, fixings or other supporting components may also affect the replacement work.
Simply measuring the width and height of a broken pane does not necessarily provide all of the information needed to determine the appropriate replacement.
Why Like-for-Like Replacement Is Not Always Appropriate
Replacing damaged glass with the same apparent glass type or thickness as the original pane is not always the most appropriate approach.
The original glazing may have been installed under earlier standards, building requirements or construction practices. The way the surrounding area is used may also have changed since the glass was originally installed.
In some situations, the appropriate replacement may therefore involve a different glass type, thickness, construction or installation method.
Replacement glass should be selected for the current application rather than automatically assuming the original pane remains the correct specification.
Requirements Applying to Replacement Work
The requirements applying to replacement glazing can depend on the type of building, the location of the glass, the nature and extent of the work and the particular circumstances of the installation.
Where relevant, consideration may need to be given to the National Construction Code, applicable Australian Standards and other building or glazing requirements applying to the work.
The correct approach should therefore be based on the current installation and scope of work rather than relying solely on what was previously fitted.
The Complete Glazing System Matters
Replacement glass needs to work correctly with the surrounding glazing system.
Frames, glazing beads, channels, blocks, seals, gaskets, clamps, fasteners and other components can all contribute to the way the glass is supported, positioned and retained.
If these components are damaged, deteriorated, loose or unsuitable, replacing the glass alone may not address the complete issue.
The condition and suitability of the surrounding installation should therefore form part of the replacement assessment.
Temporary Safety After Glass Breakage
Broken, cracked or unstable glass can create an immediate safety risk before permanent replacement work is completed.
Depending on the location and condition of the glazing, temporary measures may be appropriate to restrict access to the affected area or reduce the risk of people coming into contact with loose or damaged glass.
Where there is a risk of glass falling, moving or causing injury, people should be kept away from the affected area until it can be properly assessed and made safe.
Temporary measures should not be treated as a permanent substitute for completing the required repair or replacement work.
When Professional or Specialist Assessment May Be Needed
Professional assessment may be appropriate where the existing glass cannot be positively identified, the supporting system is damaged or the glazing forms part of a higher-risk or safety-critical installation.
This may include large glass panels, barriers, pool fencing, overhead glazing, unusual architectural installations or locations where structural conditions are uncertain.
A glazier can assess the existing glass, dimensions, location, framing, supports and intended use before determining an appropriate replacement approach.
Where structural conditions or other specialist matters fall outside normal glazing assessment, additional professional or engineering advice may also be appropriate.
Replacement Glass Should Be Assessed for the Current Application
Replacing broken glass does not always mean installing an identical copy of the original pane. The appropriate replacement can depend on the glass location, dimensions, intended use, framing, supports and the requirements applying to the work. Older glass or previous installation practices should not automatically be relied upon as the basis for selecting new glazing.
DISCLAIMER
This information is provided as a general guide only and is not a substitute for project-specific assessment. The requirements applying to replacement glazing can depend on the building, location, existing installation, scope of work and other circumstances. Applicable requirements should be confirmed against the relevant National Construction Code provisions, Australian Standards and any necessary professional advice.
Related Standards & Building Requirements
AS 1288 and AS/NZS 2208 are important references for glass selection, installation and safety glazing, but they are not the only requirements that may be relevant to a glazing project.
Depending on the building, location and type of work, the National Construction Code, other Australian Standards, NSW legislation, product requirements and project-specific design information may also need to be considered.
The requirements applying to one installation should therefore not automatically be assumed to apply to every other glazing application.
National Construction Code
The National Construction Code (NCC) sets minimum technical requirements for building work in Australia and works alongside referenced Australian Standards.
For NSW projects, the edition of the NCC that applies can depend on when the relevant approval or building work occurs, together with NSW-specific requirements and variations.
As at October 2026, the current edition applying in NSW is NCC 2022 Amendment 2. NSW is scheduled to adopt NCC 2025 from 1 May 2027.
Where glazing forms part of new building work, alterations or other regulated construction, the applicable NCC requirements should be considered together with the relevant glazing standards.
Windows & External Glazed Doors
For external windows and glazed doors, AS 2047 — Windows and external glazed doors in buildings may also be relevant.
AS 2047 addresses requirements relating to external window and glazed-door systems, including aspects of materials, construction, installation and glazing.
This means that selecting an appropriate piece of glass is only one part of the overall performance of a window or external glazed-door system. The frame, seals, installation and complete assembly can also be important.
Pool Barriers & NSW Requirements
Where glass forms part of a swimming pool barrier, glazing requirements are only one part of the overall safety assessment.
Pool barriers in NSW are also subject to the Swimming Pools Act, Swimming Pools Regulation and applicable pool-barrier standards. Requirements can vary depending on when the pool or barrier was constructed and whether it has subsequently been modified or rebuilt.
Barrier height, gates, latching, non-climbable zones, surrounding objects and other aspects of the complete pool enclosure can therefore be relevant in addition to the glass itself.
The requirements applying to an individual pool should be confirmed against current NSW Government guidance rather than assuming that one version of a pool-barrier standard applies to every property.
Structural & Project-Specific Requirements
Some glazing applications can also involve structural, engineering, manufacturer or project-specific requirements beyond the general selection of the glass.
This can be particularly relevant for large glazed panels, exposed windows, balustrades, barriers, structural canopies, overhead glazing and other installations where significant loads or specialised support systems are involved.
The appropriate requirements depend on the particular project. Where specialist structural information is necessary, it should be obtained from an appropriately qualified professional rather than inferred from glass type or thickness alone.
More Than One Requirement May Apply
Australian glazing requirements should not be treated as a single-standard checklist.
The correct approach can involve the National Construction Code, applicable Australian Standards, NSW legislation, manufacturer requirements and project-specific design information.
Which requirements apply depends on the building, location, type of glazing and scope of the work.
DISCLAIMER
This section provides general information only and does not identify every standard, regulation or technical requirement that may apply to a particular glazing project. Requirements should be confirmed for the individual building, application and scope of work.
Frequently Asked Questions
These frequently asked questions provide general guidance about safety glazing, glass replacement and common Australian glazing requirements.
The correct glass for a particular installation depends on the location, dimensions, intended use and other conditions affecting the glazing.
No. Safety glass is not automatically required in every window.
The appropriate glass depends on factors such as the size and position of the pane, height above floor level, likelihood of human impact, framing, wind exposure and the requirements applying to the particular installation.
Windows in higher-risk locations can therefore require different glazing from ordinary windows in protected areas.
Not necessarily.
Glass thickness is only one part of selecting an appropriate replacement. Glass type, panel dimensions, location, framing, human-impact risk, wind loading and other requirements may also affect the correct specification.
The original pane can provide useful information, but it should not automatically be treated as the correct specification for replacement glass.
Safety glass may carry a permanent marking or other identification information that helps indicate the glass type and product details.
Laminated glass may also show an interlayer when an exposed edge can be inspected.
However, appearance alone should not be relied upon to identify installed glass. Where the glass type cannot be confidently identified, further assessment may be appropriate.
The absence of an obvious marking does not automatically prove that the glass is ordinary, unsafe or non-compliant.
Markings and labels can vary, and some identification may be difficult to locate, obscured by framing or no longer present.
Where identifying the glass is important, the pane and surrounding installation should be assessed rather than relying only on whether a visible stamp can be found.
Safety glazing is designed to reduce particular risks associated with glass breakage, but toughened and laminated glass can still be damaged or broken.
Impact, edge damage, excessive loading, unsuitable hardware, structural movement and other conditions can affect glazing performance.
They can be.
Doors, sidelights, bathrooms, low-level glazing and other areas where people may come into contact with glass can involve different safety considerations from ordinary glazing in lower-risk locations.
The appropriate glass depends on the dimensions, position, intended use and requirements applying to the particular installation.
No.
The age of glass alone does not establish whether an installation is unsuitable.
Older buildings may contain glazing installed under earlier standards, requirements or construction practices. Where existing glass is damaged, altered or being replaced, the current application and scope of work should be assessed before determining the appropriate replacement.
AS 1288 relates to the selection and installation of glass in buildings.
AS/NZS 2208 relates to the testing and classification of safety glazing materials.
The standards therefore address different parts of glazing safety. A safety-glazing product still needs to be appropriately selected, sized and installed for the location in which it is used.
The appropriate replacement should be determined by considering the existing installation, glass dimensions, location, framing, supports, intended use and the requirements applying to the work.
A professional glazier can assess these factors and determine an appropriate glazing solution.
Where structural or specialist design considerations are involved, additional professional or engineering advice may also be required.
Keep people away from the affected area where there is a risk of loose, falling or unstable glass.
Broken glazing should be assessed and made safe before permanent replacement work is completed.
Temporary measures may be appropriate in some situations, but they should not be treated as a permanent substitute for proper glass repair or replacement.
Requirements Depend on the Individual Installation
Glass requirements can vary according to the building, location, dimensions, glazing type, framing, intended use and scope of work. A particular installation should therefore be assessed on its own circumstances rather than relying only on general information.
FAQ Disclaimer
This information is provided as a general guide only and is not a substitute for project-specific assessment. Applicable requirements should be confirmed against the relevant National Construction Code provisions, Australian Standards and any other requirements applying to the particular work.
References & Further Information
The information in this guide has been prepared with reference to Australian glazing standards, National Construction Code provisions and relevant NSW building and safety information.
Australian Standards contain detailed technical requirements and are protected publications. This guide explains general principles only and does not reproduce or replace the full standards.
For project-specific compliance, design or installation requirements, the current applicable standards, legislation, National Construction Code provisions and any necessary professional advice should be consulted.
Australian Glass & Safety Glazing Standards
AS 1288:2021 — Glass in buildings — Selection and installation
This standard addresses the selection and installation of glass in buildings and includes considerations such as glass strength, human impact, wind loading, framing and fixing, barriers and overhead glazing.
AS/NZS 2208:2023 — Safety glazing materials in buildings
This standard sets testing requirements for safety glazing materials used in buildings, including products such as toughened and laminated safety glass.
National Construction Code
The National Construction Code contains building requirements that work alongside referenced Australian Standards.
Its glazing provisions address areas including windows and external glazed doors, glass selection and glazing in locations with a higher potential for human impact.
The applicable NCC provisions depend on the building, work being undertaken and regulatory requirements applying to the project.
Windows & External Glazed Doors
AS 2047 — Windows and external glazed doors in buildings may also be relevant where glazing forms part of an external window or glazed-door system.
The performance of these systems involves more than the glass itself and can include the frame, seals, construction and installation of the complete assembly.
NSW Pool Barrier Requirements
Where glass forms part of a swimming pool barrier, NSW pool-safety legislation and applicable pool-barrier standards may also need to be considered.
The requirements can depend on when the pool or barrier was constructed and whether the barrier has subsequently been modified or rebuilt.
Current NSW Government guidance should be checked for the individual property and circumstances.
Using Australian Standards
Australian Standards should be consulted in their current applicable form where detailed technical requirements are required.
Standards can be amended, replaced or redesignated over time, and older documents may therefore refer to previous editions or designations.
Where compliance needs to be confirmed, the current applicable publication and any amendments should be checked rather than relying solely on older references or general online information.
This Guide Does Not Replace the Australian Standards
This NSW Glass Masters guide is intended to provide practical general information about common glass and glazing considerations. It does not reproduce the Australian Standards, provide engineering certification or determine compliance for an individual building or glazing installation. Where detailed technical or compliance requirements are required, the applicable National Construction Code provisions, Australian Standards, legislation and any necessary professional advice should be consulted.
About This Guide
This Australian Glass Standards Facts Sheet has been prepared by NSW Glass Masters as a practical educational resource for homeowners, businesses and property managers seeking general information about common glazing requirements, safety considerations and replacement decisions.
The guide has been developed to explain technical glazing concepts in clear language while recognising that the correct glass specification can depend on the individual building, application and scope of work.
It is intended to support informed decisions and professional assessment, not replace the Australian Standards, National Construction Code, engineering advice or project-specific compliance requirements.
Prepared & Reviewed By
Prepared & Reviewed By
Jad Francis
Founder & Director — NSW Glass Masters
This guide has been reviewed from the perspective of practical glazing work, glass replacement and common safety considerations encountered across residential and commercial properties in Sydney.
Last reviewed: October 2026
Need Help With Existing or Replacement Glass?
If you are unsure what type of glass is installed, whether damaged glazing should be replaced, or what glass may be appropriate for a particular application, NSW Glass Masters can assess the existing installation and recommend a suitable next step.
We provide professional glass repair and replacement services across Sydney for homes, businesses and other properties, with each job assessed according to the glass location, dimensions, surrounding system and intended use.
For project-specific advice or a quote, contact NSW Glass Masters.
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