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Drywall Calculator
Estimate drywall sheets from wall area, openings, sheet dimensions and waste.
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Formula
Net wall area = length × height − openings. Sheets = net area × (1 + waste%) ÷ sheet area, rounded up.
Net wall area = length × height − openings. Sheets = net area × (1 + waste%) ÷ sheet area, rounded up.
How it works
1
Enter combined wall length and height.
2
Subtract openings such as doors and windows.
3
Enter sheet coverage and waste.
Important notes
Ceilings, complex layouts and different sheet orientations can change the actual count.