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Drywall Calculator
Enter the room size and we'll size up the sheets, fasteners, and mud. Standard sheets are 4x8 (32 sq ft); 4x12 sheets mean fewer seams to finish on long walls.
Your numbers
Drywall sheets
21 sheets
- Total surface
- 642 sq ftwaste included
- Sheets
- 21 sheets
- Drywall screws
- 643 screws2 lb box(es)
- Joint compound
- 1 4.5-gal buckets3.5 gal approx.
- Joint tape
- 257 linear ft
- Corner bead
- 32 linear ftoutside corners, if any
- Estimated material cost
- $294 – $485sheets, mud, tape & screws
- Waste & gas charge (10%)
- $29 – $49material overage, cuts & fuel
- Total with waste & gas
- $323 – $534
- Sheet counts assume standard 1/2 in board; 5/8 in fire-rated board is heavier but covers the same area.
- A 10% waste & gas allowance is added to every estimate to cover material overage, cuts, and fuel to and from the job site.
Quantities and cost ranges are planning ballparks for materials only — labor is quoted separately. A 10% waste & gas allowance is already included in the total. Verify measurements on site.
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