Drywall Calculator
Find how many 4×8 drywall sheets you need for walls and ceilings.
🔄 Updated October 13, 2026
About the Drywall Calculator
Planning a build or renovation? The Drywall Calculator gives fast, reliable planning estimates. Find how many 4×8 drywall sheets you need for walls and ceilings. Figures include a small waste allowance where relevant. For bigger projects, compare with the Concrete Calculator and Gravel Calculator.
How to use this calculator
- Enter your numbers in the fields above.
- Results update instantly — no button to press, no page reload.
- Adjust the inputs to compare scenarios with the Drywall Calculator.
Keep exploring: Concrete Calculator · Paint Calculator · Tile Calculator · Brick Calculator
Frequently asked questions
How many sheets for a 12×12 room?
About 14–16 sheets for walls plus ceiling, depending on height.
What size are drywall sheets?
Standard sheets are 4×8 feet (32 sq ft).
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