Drywall calculator
Drywall Calculator
Estimate drywall sheet quantities from wall and ceiling surface area.
Results
- Total surface area
- 400.00 sq ft
- Adjusted area with waste
- 440.00 sq ft
- Sheets required
- 14 sheets
What this calculator does
This calculator combines wall and ceiling area, adds waste, and divides by the selected drywall sheet size.
Sheet sizes
The sheet options use common 4x8, 4x10, and 4x12 panels with areas of 32, 40, and 48 square feet.
Waste allowance
Waste helps account for cuts, layout decisions, and damaged panels. Sheet counts are rounded upward.