Drywall Calculator

Estimate sheets, joint compound (mud), tape, screws, and total material cost for walls and ceilings. Supports 1/2" and 5/8" thicknesses and common sheet sizes.

Enter total drywall area directly (skip room dimensions)

Room length (ft)Room width (ft)Wall height (ft)Waste / overage (%)ThicknessSheet size

Include ceiling

Material pricing & coverage

Price per sheetMud coverage (sq ft per tub)Price per mud tub (4.5 gal)Tape coverage (sq ft per 500 ft roll)Price per tape rollScrews per sheetScrews per boxPrice per box of screws

Sheets needed

16.23 exact — 32 sq ft each

Total estimated cost

$373

materials only

Drywall area: 472 sq ft
Area with waste: 519.2 sq ft
Sheets (rounded up): 17
Joint compound (mud): 2 tubs
Tape rolls: 2
Screws: 816 screws • 1 box

Cost breakdown

Sheets: $306
Mud (joint compound): $36
Tape: $16
Screws: $15
Total: $373

Area = 2 × (length + width) × height for walls (+ length × width for ceiling). Waste accounts for cuts, mistakes, and offcuts. Mud, tape, and screw quantities are practical averages; textured finishes or multiple coats increase mud usage. 5/8" is common on ceilings and for fire/sound ratings.

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