Plywood & OSB Calculator
Calculate plywood, OSB and chipboard sheets for flooring, wall sheathing, roof decking and more.
How to use this calculator
1. Choose your application
Select flooring, wall sheathing, roof decking, or interior lining.
2. Select board type
Choose OSB, plywood, chipboard or marine plywood based on your needs.
3. Enter dimensions
Measure the length and width of your area in metres.
4. Calculate sheets
Click Calculate to see the number of sheets needed including wastage.