Glass · Weight
8 mm glass weight
8 mm glass weighs 20.0 kg per square metre, which is 1.86 kg or 4.10 lb per square foot. Float, toughened (tempered) and heat-strengthened glass weigh the same: the density is 2500 kg/m³ in every case.
Weight of 8 mm glass by size
| Size | kg | lb | Handling (the calculator's guideline) |
|---|---|---|---|
| 1 square foot (12 × 12 in) | 1.9 | 4.1 | One person, by the 25 kg guideline |
| 1 square metre | 20.0 | 44.1 | One person, by the 25 kg guideline |
| 2 × 3 ft (610 × 914 mm) | 11.1 | 24.6 | One person, by the 25 kg guideline |
| 4 × 8 ft (1219 × 2438 mm) | 59.5 | 131.1 | Three or four people, or a lifter |
| Stock sheet 2440 × 1830 mm (8 × 6 ft) | 89.3 | 196.9 | Three or four people, or a lifter |
| Door panel 900 × 2100 mm | 37.8 | 83.3 | Two people, by the guideline |
| Shower screen 900 × 1900 mm | 34.2 | 75.4 | Two people, by the guideline |
| Window 1200 × 1200 mm | 28.8 | 63.5 | Two people, by the guideline |
| Half jumbo sheet (DLF) 3210 × 2250 mm | 144.5 | 318.5 | Mechanical lifter |
Glass only, monolithic. The handling column is the calculator's guideline of 25 kg per person lifting with suction cups; the shape, the wind and the route can call for more people or a lifter.
Your own size
Laminated and double glazed with 8 mm
- Laminated 4 + 4 mm with a 0.76 mm PVB interlayer (8.76 mm in all): 20.8 kg/m².
- Double glazed 8-16-8 (two 8 mm panes): 40.0 kg/m². The cavity weighs nothing; the spacer and sealant, a little, which the calculator leaves out.
How it is worked out
Weight = area × thickness × density. For one square metre of 8 mm glass: 1 m² × 0.008 m × 2500 kg/m³ = 20.0 kg. A square foot is 1/10.7639 of a square metre, so 20.0 ÷ 10.7639 = 1.86 kg, and × 2.20462 = 4.10 lb. The nearest US nominal thickness to 8 mm is 5/16".
Other thicknesses
3 mm · 4 mm · 5 mm · 6 mm · 8 mm · 10 mm · 12 mm · 15 mm · 19 mm · 25 mm
Laminated glass weight · Double glazing weight · Toughened glass weight
Questions people ask
- How much does 8mm glass weigh per square foot?
- 1.86 kg (4.10 lb) per square foot, or 20.0 kg per square metre, because glass has a density of 2500 kg/m³.
- How heavy is a 8 mm glass door?
- A 900 × 2100 mm panel weighs 37.8 kg (83.3 lb). By the calculator's guideline: two people, by the guideline.
- Does 8 mm toughened glass weigh more than ordinary glass?
- No. Toughening changes the stresses in the glass, not its density: 8 mm toughened (tempered) glass weighs the same as float, 20.0 kg/m².
- What does a 8 mm sheet of 2440 × 1830 mm (8 × 6 ft) weigh?
- 89.3 kg (196.9 lb).