How to use this drywall calculator
Enter room dimensions, sheet size and waste allowance to estimate whole sheets.
How the calculation works
Wall area = 2 × (length + width) × heightAdd ceiling area if neededSheets = adjusted area ÷ sheet areaAdvertisementGoogle AdSense placeholder
Example project
A 12 × 14 ft room with 9 ft walls has 468 sq ft of wall surface before openings.
Practical tips
- Use your actual sheet size.
- Cuts create waste.
- Follow project specs for special assemblies.
Frequently asked questions
Common sheet size?
4 × 8 ft is common.
Subtract windows and doors?
Gross area can provide a simple allowance for cuts.
Does this calculate screws?
No, this tool focuses on sheet quantity.