Drywall Calculator
Calculate sheets of drywall, joint compound, tape, and screws needed for walls and ceilings. Accounts for doors, windows, and waste.
Sum of all wall lengths to be drywalled — measure every wall and add them up
Floor to ceiling height — standard residential is 8 feet
Standard door opening deducts 21 sq ft (3 ft × 7 ft)
Standard window deducts 15 sq ft (3 ft × 5 ft)
Ceiling drywall adds significant material — rent a panel lift if going solo
Extra material for cuts and mistakes — 10% is standard, use 15% for complex layouts
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