Calculators
Drywall Sheet Calculator — 4×8, 4×10, 4×12
Sheet size changes how many panels you carry — 4×10 is 40 sq ft, 4×12 is 48. This preset uses 4×10 sheets on a 14 by 16 ft room with ceiling included.
Openings cannot exceed gross wall area; the calculator returns a plain error instead of a negative number.
Pick sheet size and waste in the controls below.
| Item | Area | Size | Buy |
|---|---|---|---|
| Walls | Living area | 505 sq ft | 14 sheets |
| Ceiling | Living area | 224 sq ft | 7 sheets |
Assumptions
- Sheet size: 40 sq ft per sheet
- Waste factor: 10%
- Wall area (net): 505.0 sq ft
- Ceiling area: 224.0 sq ft
- Default door opening: 20 sq ft
- Default window opening: 15 sq ft
- Estimates only. Check the coverage figure on your product before buying.
Supplies checklist
- Joint compound — ~7 buckets
- Paper tape — 1 roll
- Drywall screws — ~672
- Corner bead — 4 pieces
- Mud pan and taping knives
- Sanding screens or sponge
Estimates only. Check the coverage figure on your product before buying.
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