Drywall Calculator
Estimate drywall sheets, screws, mud and tape for walls and ceilings.
Enter your values to see the result.
Estimates only. Measure carefully and check quantities with your supplier before ordering.
Continue your work
- Paint Calculator — Paint the finished walls.
- Stud Calculator — Frame the wall first.
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Clear instructions
Find steps, examples and limitations below.
Use online
Open the tool in a supported web browser.
Free to use
No sign-up required. Tool-specific limits may apply.
How to use the Drywall Calculator
Estimate drywall sheets, screws, mud and tape for walls and ceilings.
- 1 Enter the total wall length, height, doors and windows, and the ceiling if needed.
- 2 Choose the sheet size and waste.
- 3 Read the sheets, screws, compound and tape.
Example and practical tips
A 14 × 10 ft room with 8 ft walls, two doors and two windows needs about 13 sheets of 4 × 8 drywall.
Frequently asked questions
Which sheet size is best?
Larger sheets mean fewer seams to tape but are heavier to lift; 4 × 8 is easiest to handle.
How much waste should I add?
About 10% for cuts around openings.
Report an issue
Something broken or not quite right? Tell us and we will look into it.