Drywall Calculator

Drywall Calculator

Estimate the number of drywall sheets needed for walls and ceilings. Calculate 4x8 and 4x12 sheet requirements with waste allowance for construction and renovation projects.

drywall
sheetrock
walls
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Common Room Sizes
Popular room dimensions for drywall estimation (perimeter × 8' ceiling)
1Wall Dimensions & Sheet Options
Enter total wall perimeter and select sheet size (assumes 8' ceiling)
How it works: Enter room dimensions to calculate wall perimeter. Assumes standard 8' ceiling height. Calculates sheets needed with waste allowance for cuts and off-cuts.

Complete Guide: Drywall Calculator

Everything you need to know about using Drywall Calculator effectively