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Building Calculators
Plaster Calculator
Enter the wall area and plaster thickness — get cement bags and sifted plaster sand for a 1:4 mix, the way site crews actually order it.
Your measurements
Length × height, both sides if plastering inside and out
50 m²
Area
7 bags
Cement
0.7 m³
Plaster sand
Your materials list
| Cement 42.5N (50 kg) — plaster 1:4 | 7 | Bag |
| Plaster/river sand (sifted) | 0.7 m³ (≈12 wheelbarrows) | m³ |
| Plasterer's trowel & float set | 1 | Set |
Mix 1:4 cement to sand. One bag covers roughly 8 m² at 12 mm.
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