Drywall Calculator
Calculate
Formula
Net Wall Area = (2 × (Length + Width) × Height) − (Doors × 21) − (Windows × 15). Sheets = Net Area ÷ 32 (rounded up).
Frequently Asked Questions
What size are standard drywall sheets?
Standard drywall sheets are 4 feet wide by 8 feet tall, covering 32 square feet each.
How are door and window openings estimated?
Doors are estimated at 21 sq ft (3×7 ft) and windows at 15 sq ft (3×5 ft) each.
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