How to calculate chequered plate weight
Chequered plate (also called tread, checker, floor or durbar plate) is specified by its thickness on the plain — the flat part between the raised pattern. The plain weight is the same rule as any steel plate:
Plain weight (kg/m²) = Thickness (mm) × 7.85
The raised tear-drop or diamond pattern adds extra steel, typically 1–3 kg/m² depending on the manufacturer and pattern. So:
Chequered weight (kg/m²) = Thickness × 7.85 + Pattern allowance
Multiply by the plate area and quantity for the total. Adjust the pattern allowance above to match your supplier's data sheet.
Typical chequered plate weight
| Base thickness | Approx. weight (kg/m²) |
|---|---|
| 3 mm | ≈ 26 |
| 4.5 mm | ≈ 38 |
| 5 mm | ≈ 42 |
| 6 mm | ≈ 50 |
| 8 mm | ≈ 66 |
| 10 mm | ≈ 81 |
| 12 mm | ≈ 97 |