Wood & boards
Drywall Calculator
Your measurements : area, sheet length, sheet width. Your estimate : sheets, area to purchase.
How the calculation works
Drywall Calculator
round up(Area × (1 + Waste allowance / 100) ÷ (Sheet length × Sheet width))Before you order
- Use the coverage, yield and dimensions printed on your product. Waste allowance is adjustable; real cuts and site conditions may change the order.
- Quantity estimate, not an optimized cutting plan. Add an allowance for the layout, joints and unusable offcuts.
- Planning estimate only. This is not a structural design, a safety approval or a local code check.
Worked example
- Area
- 20 m²
- Sheet length
- 2.5 m
- Sheet width
- 1.2 m
- Waste allowance
- 10 %
Sheets 8
Area to purchase 24 m²