Professional lumber calculations for framing and construction projects. Our free lumber calculator helps you determine board feet for any framing project, whether you're building a deck, a house, or a shed.
Board Feet
8.00 BF
Always calculate 5-10% extra lumber for cuts and waste. It's better to have too much than too little when you're in the middle of a project.
Board Feet estimates usually start with the project area or volume, then add a waste factor before converting the result into bags, pieces, bundles, panels, or gallons. Use this calculator when you need a fast material estimate before ordering supplies, comparing costs, or planning a construction project.
Contractors, builders, remodelers, and DIY homeowners who need a practical jobsite estimate.
Start with the dimensions of the project, then choose material settings, price, and waste percentage.
The basic workflow is to measure lumber, calculate studs, calculate plates, then round up so you do not run short during installation.
Nominal is the name (2×4), actual is smaller (1.5×3.5 inches). This difference comes from milling and drying.
Calculate board feet by multiplying thickness (inches) × width (inches) × length (feet), then divide by 144.
Note nominal dimensions (2×4, 2×6, etc.) and actual length needed.
Space studs 16 or 24 inches on center. Count corners and openings.
Double top plate and single bottom plate - total three plates per wall.
Similar to studs, space 16 or 24 inches on center.
Add 10-15% extra for cuts, mistakes, and variations.
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