WALL COVERING
Drywall calculator
Estimate drywall sheets for a measured wall. Subtracts doors and windows, adds a waste allowance, and counts sheets at the coverage you enter. This is an estimated requirement—not a purchase, safety, engineering or code-compliance instruction.
Build your estimate
Choose a unit system. Switching units converts the values already entered.
Estimated requirement
Enter measurements and calculate.
- How it was calculated
- Your formula will appear here.
- Assumptions
- Waste and package assumptions will appear here.
- What may change it
- Sheet layout, ceiling height, orientation, joints, damage, local requirements and manufacturer guidance can change the result.
Worked example
A 400 ft² wall area minus 40 ft² of openings needs an estimated 13 standard 4 × 8 sheets at 10% waste.
Check the product label and supplier before ordering. Measured conditions, layout, cuts, compaction, site preparation and local requirements may change your actual requirement.
Read the methodology →