Drywall calculator
Convert measured drywall area into whole sheets.
Formula
Sheets = ceil[area × layers × (1 + extra/100) / sheet area]
Surface area: 400 ft² · Area per sheet: 32 ft² · Area with allowance ≈ (400 ft² × 0.09290304 m²/ft²)×(1)×(1+(10)÷100) · Sheets ≈ ceil(((40.8773376)÷(32 ft² × 0.09290304 m²/ft²))×(1-8.881784197001252e-16))
How to use
- Add the surfaces to cover, subtracting openings.
- Enter sheet area and number of layers.
- Set waste and read whole sheets.
Examples
- 12 m² in two layers with 3 m² sheets needs 8 sheets.
Frequently asked questions
Does floor area work?
No. Add each wall and any ceiling surface to be covered.
Does this plan panel cuts?
No. Area estimates assume reusable offcuts; layout may need more sheets.
Are screws and compound included?
No. Use the selected system and product coverage for those materials.
Sources
Updated: