Plywood Sheathing Calculator
Calculate how many plywood sheets you need for your sheathing project. Determine optimal material usage for walls, roofs, and floors based on area dimensions and plywood sheet sizes.
Step 1: Project Specifications
Understanding Sheathing
For walls: calculate area as Length × Height. For roofs and floors: calculate area as Length × Width. Always add 10-15% extra for waste, cuts, and imperfections.
Step 2: Plywood Specifications
About Waste Factor
The waste factor accounts for cuts, damaged sheets, and imperfections. For simple projects use 5-10%, for complex shapes or roof cuts use 15-20%.
Material Calculation Results
Plywood Sheets Needed
Plywood Size Comparison
| Plywood Size | Dimensions | Sheets Needed | Total Cost |
|---|
Material Breakdown
Calculation Formula
Sheets Needed = (Total Area × (1 + Waste%)) / Sheet Area
To calculate plywood sheets: Multiply total area by waste factor (as decimal), then divide by the area of one plywood sheet. Always round up to the nearest whole sheet.
Need Professional Construction Material Analysis?
Connect with our construction experts for detailed material estimates, project planning, and custom solutions for your building projects.
Get Professional Analysis