How many sheets of drywall for a 8×8 room with 9' ceilings?
Answer
9 sheets (4×8)
Wall area: 288 sq ft (259 after openings)Joint tape: 2 rollsJoint compound: 15 lbs
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How We Calculated This
Sheets = (Wall Area × 0.9) / 32 sq ft per 4×8 sheet
Walls: 2 × (8 + 8) × 9 = 288 sq ft. After 10% openings: 259 sq ft. ÷ 32 sq ft per sheet = 9 sheets
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Calculated using verified formulas. Last updated March 2026.