Calculate how many drywall sheets you need for walls and ceilings, plus screws and joint compound.
4x8 ft sheets
| Net Wall Area | 346 ft² |
| Ceiling Area | 0 ft² |
| Total Area (with waste) | 381 ft² |
| Sheets Needed | 12 sheets |
| Screws (lbs) | ~4 lb |
| Joint Compound (5-gal buckets) | ~2 bucket(s) |
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Wall Area = 2 × (L + W) × H
Net Area = Wall Area − Doors − Windows
Sheets = (Net Area × waste) ÷ sheet area
4×8 ft (32 sq ft) is standard. 4×12 ft reduces seams on tall walls. Use 4×8 for most projects.
Add 10% for simple rooms, 15% for rooms with many angles and cuts.
Approximately 28–32 screws per 4×8 sheet. Buy 1 lb of screws per 100 sq ft.
Yes. Subtract ~20 sq ft per door and ~15 sq ft per window from your total wall area.
Calculations are for educational purposes only. Consult a qualified financial advisor for personalized advice.