Glass · Weight
Toughened (tempered) glass weight
Toughened glass weighs exactly what float glass of the same thickness weighs: toughening changes its stresses, not its density (2500 kg/m³). So 10 mm toughened is 25.0 kg/m², or 2.32 kg per square foot.
The weights
| Thickness | kg/m² | kg/ft² | lb/ft² | Door 900 × 2100 |
|---|---|---|---|---|
| 3 mm | 7.5 | 0.70 | 1.54 | 14.2 kg |
| 4 mm | 10.0 | 0.93 | 2.05 | 18.9 kg |
| 5 mm | 12.5 | 1.16 | 2.56 | 23.6 kg |
| 6 mm | 15.0 | 1.39 | 3.07 | 28.4 kg |
| 8 mm | 20.0 | 1.86 | 4.10 | 37.8 kg |
| 10 mm | 25.0 | 2.32 | 5.12 | 47.3 kg |
| 12 mm | 30.0 | 2.79 | 6.14 | 56.7 kg |
| 15 mm | 37.5 | 3.48 | 7.68 | 70.9 kg |
| 19 mm | 47.5 | 4.41 | 9.73 | 89.8 kg |
| 25 mm | 62.5 | 5.81 | 12.80 | 118.1 kg |
Toughened glass cannot be cut, drilled or ground after toughening: order it to size.
Every figure is the calculator's. The door and the window are monolithic sizes for comparison; your own size and make-up go in the calculator.
More glass weights
Laminated · Double glazing · By thickness: 3 mm · 4 mm · 5 mm · 6 mm · 8 mm · 10 mm · 12 mm · 15 mm · 19 mm · 25 mm
Questions people ask
- Is toughened glass heavier than ordinary glass?
- No. It weighs the same as float glass of the same thickness: 10 mm is 25.0 kg/m².
- How heavy is a 10 mm toughened glass door?
- A 900 × 2100 mm panel weighs 47.3 kg.