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Drywall Calculator

Estimate drywall sheets for a room — walls and ceiling, less doors and windows — plus joint compound, tape, and screws, with U.S. pricing, a sheet-size comparison, and a downloadable PDF.

Finishing quantities are rules of thumb — actual mud, tape, and screw use varies with layout and skill. Prices use 2024-2025 U.S. figures. For planning purposes only.

Room & Materials
1 Room & Surfaces
ft
×
ft
ft
x
−21 sf
−15 sf
sq ft
Walls + ceiling − openings, times rooms. Edit to enter a known area.
10%
~10% typical; more for lots of cuts, angles, and small rooms
2 Drywall Sheets
sf
$
3 Finishing & Cost
$
A 4.5-gal box of ready-mix finishes ~475 sq ft over 3 coats
$
$
$
$/ sheet
Pro hang + tape + finish ~$40-70 per sheet. Set 0 for materials only.
Drywall Estimate
Drywall Sheets Needed
—
Enter your room to begin
Drywall Area —
Total Sheets —
Compound Boxes —
Material & Cost Breakdown
Drywall area —
Drywall sheets —
TOTAL ESTIMATE—
Tape Rolls —
Screws —
Cost / sq ft —
Cost Breakdown Chart
Estimated cost by material ($)
Sheet Size Comparison — Your Room
Sheet SizeAreaSheetsSheet Cost

Sheets only, for your 710 sq ft (with waste). Bigger sheets mean fewer seams to tape.