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Building Calculators
Paint Calculator
Enter the area, pick the finish and coats — get litres with sensible drum sizing (20 L + 5 L), primer for new plaster, and the accessories to do it properly.
Your measurements
Wall length × height, less big openings. A standard room ≈ 30–35 m² of wall.
80 m²
Area
18 L
Paint
4 × 5 L
Packaging
Your materials list
| Paint — PVA (4 × 5 L) | 18 | Litre |
| Plaster primer | 9 | Litre |
| Roller & tray set + brushes | 1 | Set |
| Masking tape & drop sheets | 1 | Set |
Coverage varies with surface porosity — new plaster drinks the first coat.
Need items beyond this list? Browse the full Supply Register.