Drywall Calculator

How to measure for drywall

1. For walls: sum (wall width × height) for each wall.
2. For ceilings: area = length × width; add any soffits separately.
3. Convert to total square feet/meters and divide by sheet coverage.

Assumptions to double-check

• This estimates sheet count, not studs, mud, tape, screws, or corner bead.
• Ceilings and tall walls often need thicker board (confirm local code).
• Openings can be ignored for a rough estimate, but waste usually covers the difference.

Buying tips

• Confirm thickness (1/2" vs 5/8") and moisture resistance for bathrooms.
• Plan waste based on layout complexity and the number of openings.
• Consider delivery and where sheets can be staged safely (they’re heavy).