Safety glass and AS 1288: when the law requires toughened or laminated
Where the Standard requires Grade A safety glass, the difference between toughened and laminated, and how to make sure ordinary float does not end up where safety glass belongs.
AGWA member, licensed and insured, glazing Western Sydney since 2005
Where the Standard requires Grade A safety glass, the difference between toughened and laminated, and how to make sure ordinary float does not end up where safety glass belongs.
Short answer: AS 1288 is the Australian Standard that decides where glass has to be Grade A safety glass, which means toughened or laminated. It covers doors, the panels beside them, low windows, full-height glass and wet areas like showers. The trap to avoid is a cheap quote that fits ordinary float glass where the Standard requires safety glass, because it looks the same and breaks like a weapon.
AS 1288 is the glazing standard that sets out, for every part of a building, what glass is allowed to go where. It exists because of the way ordinary annealed float glass fails. When float glass breaks, it does not crumble. It breaks into long, dagger-shaped shards that have caused some of the worst household injuries on record, often to children running into a glass door they did not see. The Standard puts safety glass in exactly the places people are most likely to walk into, fall against, or break with a hand.
Grade A safety glass means one of two things. Toughened glass is heat-treated to be far stronger, and when it does break it shatters into small, blunt pebbles. Laminated glass has a tough plastic interlayer bonded between two sheets, so when it cracks the pieces stay stuck to the layer rather than falling, the same way a car windscreen holds together. Both are Grade A. Ordinary float is not, and it has no business in a hazard location.
You do not need to memorise the whole Standard, but it helps to know the openings it covers, because these are exactly the ones a cheap quote will try to fit float into. As a working guide, AS 1288 calls for Grade A safety glass in these places.
Any glass in a door, and the side panels and fixed panels within reach of a door, must be safety glass. These are the panes people push, lean on and walk into most.
Glass that starts low to the floor, where someone could fall against it or a child could run into it, falls under the Standard. The lower the sill and the bigger the pane, the more certain the requirement.
Floor-to-ceiling glass, large fixed panels and anything a person could mistake for an opening must be safety glass, and is often required to carry visible marking so people can see it is there.
Shower screens and glass around a bath are wet, slippery places where a fall onto glass is a real risk, so they are safety glass without exception. A frameless shower screen is made in toughened glass for this reason, not for looks alone.
Grade A
the safety-glass class AS 1288 requires in hazard locations
AS 1288
Toughened
breaks into small blunt pebbles, not long blades
Glass behaviour
Laminated
holds together on impact, like a car windscreen
Glass behaviour
Both toughened and laminated are Grade A safety glass. Ordinary float is not, and does not belong in these openings.
Both are safety glass, but they behave differently and suit different jobs. Toughened glass is the stronger of the two and is the usual choice for doors, shower screens, splashbacks and balustrades, anywhere you want strength and a clean break into harmless pebbles. Laminated glass is the choice where you also want security, sound reduction or for the glass to stay in the opening after it breaks, such as overhead glass or a window onto the street. A good glazier picks the grade to the job and tells you why.
Toughened glass
Laminated glass
The substitution is invisible on the day. Float and toughened glass look identical once they are in the frame, which is exactly why a cheap quote can get away with it. Your protection is to make the glass grade a written, checkable part of the job, not a verbal promise.
Ordinary float glass costs the quoter less and looks the same in the frame. The only place the difference shows up is the day someone walks into it. That is why the grade has to be named on paper, not just said on the phone.
Make the grade checkable, in order
Red flag
Good sign
Before you accept any glazing quote, get the glass grade named in writing for every pane the Standard covers. If a quote on a door or a shower is silent on grade, that is the question to ask before anything else. Our guide to what glass replacement costs shows how the grade moves the price, and our guide to glazing warranty and aftercare covers what the workmanship guarantee and the glass warranties actually back. When the job is a broken or upgraded pane, the window and door glass replacement service names the grade to AS 1288 on every quote, and glass splashbacks are toughened so they take the heat behind a cooktop.