Lumber & Wood Calculator
Board feet, sheets, decking, and studs. Choose US or metric, add waste and prices, and get cost and weight.
Settings
Weight is an estimate. Moisture content changes results.
Board feet & cost
Board feet = (thickness in × width in × length ft) / 12. Use nominal sizes or enter actual.
Plywood / sheets
Decking boards
Studs & plates
Corners, openings, or blocking
Weight estimate
Optional ad slot
Notes
- Nominal lumber (like 2×4) has smaller actual sizes. We use common actuals for estimates.
- Always add waste and round up. On site cuts and defects change usage.
- Weights vary with species and moisture. Use this as planning info only.