Every shower screen sold and installed in Australia must use safety glass. This is not optional. It is a legal requirement under the Building Code of Australia, and the glass itself must comply with AS/NZS 2208, the Australian and New Zealand standard for safety glazing materials in buildings.
Most homeowners know their shower screen should be “safe.” But very few understand what that actually means in practice, how it affects the type of screen they can install, or what to look for to make sure their glazier is doing the right thing.
This matters because not all toughened glass is the same. And “compliant” does not always mean “appropriate” for your specific bathroom.
What AS/NZS 2208 Actually Requires
AS/NZS 2208 sets out the performance requirements for safety glazing in areas where there is a risk of human impact. Bathrooms are classified as a high risk zone because wet floors increase the likelihood of slipping into glass.
The standard allows two types of safety glass for shower screens: toughened (tempered) glass and laminated glass. In practice, almost every shower screen in Australia uses toughened glass because it is lighter, clearer, and better suited to frameless and semi frameless designs.
Toughened glass is manufactured by heating standard float glass to approximately 620 degrees Celsius and then rapidly cooling it. This process creates internal tension that makes the glass four to five times stronger than untreated glass of the same thickness. If toughened glass does break, it fractures into small, roughly cubic pieces rather than sharp shards, which significantly reduces the risk of serious injury.
Every piece of toughened glass used in a shower screen must carry a permanent stamp or label identifying it as compliant with AS/NZS 2208. This stamp is etched into the glass during manufacturing. If your shower screen glass does not have this stamp, it may not be safety glass.
How Glass Thickness Affects Your Options
The standard does not specify a single required thickness. Instead, it sets performance requirements that the glass must meet, and the appropriate thickness depends on the size of the panel and how it is supported.
For most semi frameless shower screens, 6mm toughened glass is standard. The aluminium frame provides structural support along the edges, which means the glass does not need to be as thick to maintain rigidity.
For frameless shower screens, the glass is the structure. There is no frame to provide support, so the glass needs to be thicker to prevent flexing. The industry standard for frameless screens is 10mm toughened glass. Some larger panels or walk in designs may use 12mm glass for additional rigidity.
Using glass that is too thin for the panel size is one of the most common corners cut in cheap installations. The glass may still be “toughened” and carry the AS/NZS 2208 stamp, but if it is 6mm in a frameless application where 10mm is appropriate, it will flex under daily use and put excessive stress on the hardware.
The Role of AS 1288 in Installation
AS/NZS 2208 covers the glass itself. A separate standard, AS 1288, covers how glass is selected and installed in buildings. This standard provides guidance on which type and thickness of glass is appropriate for different applications, including shower screens.
AS 1288 considers factors like the size of the glass panel, the height of the installation, the type of support (framed or frameless), and the location within the building. It is the standard that a qualified glazier uses to determine the right glass specification for your bathroom.
When a glazier quotes on a shower screen, they should be making these calculations as part of the design process. If someone offers you a “one size fits all” solution without asking about your panel sizes, wall configuration, or door type, they may not be selecting glass to the correct specification.
What to Check on Your Existing Shower Screen
If you already have a shower screen and want to verify it meets current standards, here is what to look for.
The Safety Stamp
Look for the AS/NZS 2208 compliance stamp on the glass. It is usually in one of the bottom corners. The stamp should be a permanent etch, not a sticker that can be peeled off. If you cannot find a stamp, the glass may not be compliant safety glass.
The Glass Type
Toughened glass has a slight visual distortion when viewed at an angle, caused by the tempering process. If you look at the glass edge on, you may also notice a slight greenish tint, which is normal for toughened float glass.
The Hardware Condition
Even if the glass is correct, worn or failing hardware can create a safety risk. Loose hinges, corroded brackets, or a door that does not close properly can result in the glass moving unexpectedly. If your shower screen hardware is showing wear, it is worth having it inspected.
Why This Matters for Your Upgrade
When you replace an old shower screen, the new screen must comply with current standards, not the standards that applied when the old screen was installed. Building codes and glass standards have been updated several times over the past two decades, and a screen that was compliant in 2005 may not meet 2026 requirements.
This is another reason why buying a screen from a hardware store and installing it yourself is risky. Retail screens may be compliant as a product, but if they are installed incorrectly, undersized for the opening, or paired with inappropriate hardware, the installation as a whole may not meet the Building Code.
A qualified glazier handles all of this. They select the right glass type and thickness for your specific layout, install it according to AS 1288, and provide documentation that the installation is compliant. If you ever sell your home or have a building inspection, this documentation matters.
The Short Version
Every shower screen in Australia must use toughened safety glass stamped with AS/NZS 2208 compliance. The glass thickness must be appropriate for the panel size and support type. The installation must follow AS 1288 guidelines. And all of this should be handled by your glazier as part of a standard installation, not something you need to research and verify yourself.
If you are not confident your current screen meets these standards, or if you are upgrading and want to make sure the new screen is fully compliant, contact Casse Glass for a free assessment and quote.
