Drywall Calculator

Room length

Room width

Wall height

Sheet size

Include ceiling?

Doors

Windows

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Sheets Needed

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Joint Compound

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Screws

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Joint Tape

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Drywall Area

What This Result Means

How to Use

Enter room length and width — the calculator finds the wall perimeter automatically.
Enter wall height — 8 ft is standard; 9–10 ft walls suit 4 × 12 sheets to cut down on butt joints.
Pick the sheet size — bigger sheets mean fewer seams but are heavier to handle.
Add ceiling and openings (Advanced) — toggle the ceiling and enter doors and windows to deduct.
Set waste — 10% for a standard room, 15% for small rooms with many cuts.