Drywall Sheet Calculator
How to Use This Drywall Calculator
- Enter the dimensions of your room in feet (length, width, and ceiling height).
- Select the size of drywall sheets you'll be using (standard 4x8 ft or larger 4x12 ft).
- Adjust the waste factor percentage (we recommend 10-15% for most projects).
- Click "Calculate" to see how many drywall sheets you need including waste.
Drywall Calculation Tips
- Standard drywall sheets are 4 feet wide and come in 8, 10, or 12 foot lengths
- For ceilings, calculate separately if using different sheet sizes
- Add 10-15% extra for cutting waste and mistakes
- Consider buying 1-2 extra sheets for future repairs
Frequently Asked Questions
How much drywall do I need for a 12x12 room?
For a 12x12 room with 8 ft ceilings, you'll need approximately 12-14 sheets of 4x8 drywall including waste. Use our calculator above for precise measurements.
What's the standard drywall sheet size?
The most common size is 4x8 feet (32 sq ft), but 4x12 ft sheets (48 sq ft) are also available for larger projects with fewer seams.
How do I account for doors and windows?
Our calculator provides a total estimate. For precise calculations, subtract the area of doors and windows from your total wall area.