Drywall Calculator (Sheets Needed)
Drywall calculator: number of drywall sheets for a room’s walls and ceiling, with screws and joint compound estimates.
sheets = walls + ceiling − openingssheet area × 1.1
How to use this calculator
- Type your input in the box.
- The result updates as you type.
- Use “Copy result” or “Copy link” to share it.
Wall area = perimeter × height (+ ceiling), minus doors and windows, plus 10 % waste. A 4 × 8 sheet covers 32 ft².
Frequently asked questions
14 × 12 ft room, 8 ft walls, ceiling, 40 ft² of openings, 4 × 8 sheets?
19 sheets.
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