📋 Free Drywall Calculator

Drywall Calculator

Enter room dimensions to calculate sheets, joint compound, and screws — automatically adjusted for doors and windows.

📋 Drywall Calculator

Room Length (ft)

Room Width (ft)

Ceiling Height (ft)

Drywall Sheet Size

Number of Doors

Number of Windows

Include Ceiling?

Use 5/8" Type X drywall for garages and fire-rated walls.
Use moisture-resistant greenboard or cement board in bathrooms and kitchens.
Standard screws: drive every 16 inches on studs and ceiling joists.
Budget about 1 lb of screws per 500 sq ft of drywall.
One 5-gallon bucket of joint compound covers approximately 200–250 sq ft.