Bag & Bucket

Drywall Calculator: Sheets Needed

Enter the room's floor size and wall height and pick a sheet size. The calculator covers all four walls and, optionally, the ceiling, and adds 10% for cuts.

Frequently asked questions

Should I subtract doors and windows?

Most drywallers don't. Sheets run over openings and are cut out, so the offcuts make up most of the waste allowance.

Which sheet size should I use?

4x8 sheets are easiest to carry and fit in most vehicles. 4x12 sheets mean fewer seams to tape but need two people.

How many screws per sheet of drywall?

About 32 screws for a 4x8 sheet on walls, or roughly one screw per square foot.

Developers: GET /api/drywall-calculator returns JSON.