AS1288-2006 Table 5.1 – Maximum Areas of Safety Glass*
This table represents an extract from AS1288-2006 and should be used as a guide only. Maximum areas do not take into account design wind
pressures. To calculate minimum glass thickness for stress at ultimate limit state and deflection at the
serviceability limit state pressures, AS1288-2006 Supplement 1 must be used. For a complete version including minimum thickness of annealed glass,
refer to the published standard.
Note: AS1288-2006 states that the maximum area for 3mm annealed (float) glass is: n 0.85m2 for monolithic annealed glass or; n 1.36m2 for annealed glass incorporated in an IGU.
In the above example, the product configuration on the left would be comprised of a combination of 4mm and 5mm monolithic
annealed (float) glass. However, if the same opening was replaced by a single fixed lite, the minimum glass requirement is 8mm
toughened glass at the very least.
As a result, the product on the right would, in most circumstances, be site glazed with additional costs (i.e. crane lift, on-site
labour) accounted for in the final price. Although more visually appealing, this product would be significantly more expensive due
to size restrictions imposed through AS1288-2006.
Standard size SFS/FFF 2100mm x 3000mm VS Single ‘F’ Fixed Lite of equivalent size