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Drywall Calculator

Calculate how many drywall sheets you need for your project

Estimate Summary

Order list & labor hours
Total area (with waste)-- sq ft
4' × 8' Sheets--
Drywall screws--
Joint compound--
Joint tape--
Labor: hang--
Labor: tape & finish--
Cost & bid
Estimated material cost--
Installed cost (range)--
Suggested bid range--

National average will be used until you enter a ZIP. Verify with your suppliers and crews - your project may vary.

How to Estimate Drywall Sheets, Mud, and Tape for Any Room

Drywall takeoffs look simple - measure walls, divide by sheet size - but the waste math is where most people get burned. Every cutout for outlets, windows, and doors generates scrap that can't be reused on the same wall, and different sheet sizes change the waste equation entirely. A 4×12 sheet covers 48 square feet and produces fewer seams on tall walls, but if your room height is 8 feet, you are cutting 4 feet off every sheet. A 4×8 sheet might produce less waste in that exact scenario. Getting the sheet count wrong means either a mid-job run to the lumber yard or shelves of unused drywall eating into margin.

By BidFlow Editorial · Last verified