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How many sheets of drywall for a 10×12 room with 8' ceilings?

Answer
10 sheets (4×8)
Wall area: 352 sq ft (317 after openings)Joint tape: 2 rollsJoint compound: 20 lbs

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How We Calculated This

Sheets = (Wall Area × 0.9) / 32 sq ft per 4×8 sheet

Walls: 2 × (12 + 10) × 8 = 352 sq ft. After 10% openings: 317 sq ft. ÷ 32 sq ft per sheet = 10 sheets

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Calculated using verified formulas. Last updated March 2026.