Home > Construction > Drywall Calculator Test Test Test Room Dimensions Length ft in m cm Width ft in m cm Ceiling Height ft in m cm Surfaces to Cover Walls Ceiling Floor Custom Custom Area (sq ft) Deduct Openings Doors Windows Other (sq ft) Sheet Size 4 × 8 ft — 32 sq ft (standard) 4 × 9 ft — 36 sq ft 4 × 10 ft — 40 sq ft 4 × 12 ft — 48 sq ft Price / Sheet $ Waste Factor % Calculate Clear Sheets Needed — Coverage Area — Total Cost — Table of ContentsTestTestTestTestTestTestTestTestTest Test Test Test Test Test Test Test Test