Interior
Drywall Calculator
Estimate drywall sheets, joint compound, tape, and screws by wall and ceiling area.
Inputs
4×8 = 32; 4×12 = 48.
Live estimate
Sheets needed
35
- Total area (with waste)
- 1,100 sq ft
- Joint compound
- 1.9 gal
- Tape
- 1,400 lf
- Screws
- 1,120
- Material cost
- $525
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How it's calculated
Total area = (wall area + ceiling area) × (1 + waste %).
Sheets = ceil(total area ÷ sheet size).
Joint compound ≈ 1 gal per 19 sheets. Tape ≈ 40 lf per sheet. Screws ≈ 32 per sheet.
Material assumptions
- Standard sheet sizes: 4×8 (32 sq ft) and 4×12 (48 sq ft).
- Joint compound: about 1 gallon per 19 sheets.
- Screws: ~32 per sheet at 12-in ceiling spacing.
Frequently asked questions
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Related calculators
This is a material estimate. Framing, insulation, and finishing are separate line items.