Wall board
Drywall Calculator
Calculate all four walls, subtract major openings, and round up to full sheets for a practical board order.
Preparing calculator...
How to calculate it
- Enter room length, width, and finished wall height.
- Subtract major doors and windows.
- Choose the actual sheet coverage and an allowance for cuts.
Frequently asked questions
What waste factor should I use?+
Use 10% for simple rooms and 15% for many openings, angled walls, or small pieces around soffits.
Does this include joint compound and screws?+
No. The result covers sheets and sheet cost; fasteners, tape, compound, corner bead, and delivery should be planned separately.