Calculate all the materials needed for your drywall project including sheets, joint compound (mud), tape, screws, and corner bead. Enter your room dimensions and the calculator will account for standard door and window openings to give you accurate material quantities.
Enter Your Measurements
Results
Drywall Sheets (4×8)
10
sheets
Total Area to Cover
313
sq ft
Joint Compound
4
gallons
Joint Tape
1
rolls (75 ft)
Drywall Screws
2
lbs
Formula
How to Use This Calculator
How to Use
- 1
Measure the total perimeter of the room (add all wall lengths together).
- 2
Enter the wall height (standard is 8 feet).
- 3
Enter the number of doors and windows to deduct their area.
- 4
Set ceiling to 1 if you want to include the ceiling area.
Frequently Asked Questions
Frequently Asked Questions
How many drywall sheets do I need for a 12x12 room?
What thickness of drywall should I use?
How many screws per sheet of drywall?
In-Depth Guides
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About This Calculator
This calculator uses the formula: Net Area = (Perimeter × Height) - (Doors × 21 sq ft) - (Windows × 15 sq ft) | Sheets = Net Area ÷ 32. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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