Drywall Calculator

Work out the number of drywall sheets required by measuring walls plus ceilings.

Enter Your Measurements

If applicable

If applicable

Windows, doors, etc.

Frequently Asked Questions

What size drywall should I use?

Standard 4' x 8' sheets work for most walls. Use 4' x 12' sheets on ceilings to reduce seams. In bathrooms, use moisture-resistant (green board) drywall.

How many screws do I need per drywall sheet?

Plan for approximately 32 screws per 4' x 8' sheet. Screws should be placed every 12" along edges and 16" in the field. Use 1-1/4" screws for 1/2" drywall.

How much joint compound do I need?

Plan for about 1 gallon of pre-mixed joint compound per 3 sheets. You'll need three coats: tape coat, fill coat, and finish coat. Ready-mix is easier for beginners.

Related calculators

See the finished room before you buy

Upload a photo of your room and try new floors, walls, colors and furniture with AI before you order materials.

Try the AI room designer free

Planning a bigger redesign? Get free AI design advice

More RoomsGPT tools for the next step in your project.