How much drywall do you need for a 10×12 room?

A 10×12 ft room with 8 ft walls needs 15 sheets of 4×8 drywall for the walls and ceiling (one door, one window, 10% waste), or 10 sheets of 4×12. Walls alone take 11 sheets of 4×8.

Change the numbers

The calculator below is pre-filled for this project. Adjust any value — including feet and inches — and the results update instantly.

Your results

Drywall sheets15

Total area to cover436 sq ft

Walls / ceiling316 / 120 sq ft

Drywall screws (≈1 per sq ft)480

How much drywall do you need for a 10×12 room — diagram

Drywall sheets for a 10×12 room by wall height

Walls plus ceiling, one door and one window subtracted, 10% waste.

Wall height	Area to cover	4×8 sheets	4×12 sheets
8 ft	436 sq ft	15	10
9 ft	480 sq ft	17	11
10 ft	524 sq ft	19	13

Breakdown

Walls: 316 sq ft after openings
Ceiling: 120 sq ft — consider 4×12 sheets or a drywall lift for the ceiling
Screws: about 480 (≈1 per sq ft of board)

The math

Walls 2 × (10 + 12) × 8 − 21 − 15 = 316 sq ft Ceiling 10 × 12 = 120 sq ft (316 + 120) × 1.10 ÷ 32 = 15 sheets (rounded up)

Common questions

How many sheets of drywall for a 10x12 room?

15 sheets of 4×8 for walls and ceiling with 8 ft walls, or 11 sheets for the walls only.

How many 4x12 drywall sheets for a 10x12 room?

10 sheets for walls and ceiling with 8 ft walls and 10% waste.

Want the full method, tips and other sizes? See the drywall calculator guide.

Last reviewed November 1, 2026. Results are estimates — confirm with your supplier.

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