Calculator
Drywall Calculator
Calculate drywall sheets, screws, joint tape, and mud needed for any room. Includes ceiling option, waste factor, and cost estimator.
📐Room Dimensions
📋Sheet Size
📊Results
17
Total Sheets
12
Wall Sheets
5
Ceiling Sheets
| Wall Area | 345.0 sq ft |
| Ceiling Area | 120.0 sq ft |
| Total Area | 465.0 sq ft |
| Area with Waste | 511.5 sq ft (10% waste) |
| Sheet Size | 32 sq ft per sheet |
| Total Screws | 544 |
| Joint Tape | 136 linear ft |
| Joint Compound | 6 gallons |
💡Installation Tips
Hanging Walls
- Hang sheets horizontally for fewer seams
- Leave 1/8" gap at floor; use shims
- Stagger vertical seams between rows
- Space screws every 12" on studs (16" OC)
Materials Guide
- Use 5/8" Type X in garages & fire walls
- Moisture-resistant (green board) for bathrooms
- Apply 3 coats of joint compound, sanding between
- Add 10–15% waste for complex rooms with angles