How many drywall sheets for a 12x12 room?

Roughly 12–14 sheets covering four walls and the ceiling with 8 ft height, after adding waste.

Should I use 4x8 or 4x12 sheets?

Larger sheets reduce seams and finishing time, but are heavier to handle. Match sheet length to wall length.

Does this include finishing materials?

It estimates screws and compound. Tape, corner bead, primer and sanding supplies are separate.

Drywall Calculator

Drywall sheets, screws and mud — sized in seconds.

Drywall sheets needed equals total wall and ceiling area divided by 32 square feet per 4x8 sheet, plus 10% for cuts. Add screws and compound based on sheet count.

Drywall Calculator

Area to cover(sq ft)

Waste(%)

Your result

Drywall sheets (4x8)

Screws~560

Joint compound~7 gal

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How it's calculated

1Add up all wall and ceiling area in square feet.
2Add 10% for cuts and waste.
3Divide by 32 sq ft per 4x8 sheet and round up.
4Plan ~40 screws and half a gallon of mud per sheet.

Key takeaways

A 4x8 sheet covers 32 sq ft.
Longer sheets (4x12) mean fewer seams to finish.
Tape, corner bead and primer are extra.

Drywall Calculator FAQ

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