Drywall calculator

Enter the wall size, subtract openings, pick the sheet size and stud spacing — get sheets, studs, screws, joint compound and tape, the way a framing crew estimates it.

Units

Wall length

Wall height

Openings — doors & windows (total area) (m²)

Sheet size

Stud spacing

Price per sheet (optional)

📐 You need

Estimates are for planning. Always confirm quantities with your supplier before ordering.

Frequently asked questions

How many drywall sheets do I need?

Divide the net wall area (minus openings) by the sheet area and add 10% for cuts — a 4×8 sheet covers 32 sq ft. The calculator does this and rounds up to whole sheets.

How many screws per sheet of drywall?

About 32 screws per 4×8 sheet with studs at 16 in on center (roughly 1 screw per square foot). At 24 in spacing it drops to about 24 per sheet.

How much joint compound and tape per sheet?

Plan on roughly 0.05 lb of ready-mix compound per square foot (a 4.5-gal bucket does about 450–500 sq ft) and about 1.2 ft of tape per square foot of drywall.