Accurately estimate lumber requirements with our Board Foot Calculator. Whether you're buying hardwoods for furniture or framing lumber for construction, understanding board footage is essential for budgeting. Enter dimensions in inches or feet to get instant volume and price calculations.
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Lumber Calculator
Calculate Board Feet (BF) and estimated cost for lumber projects
Board Dimensions
Calculation Results
Total Board Feet
5.33 BF
5.33 BF per piece
Formula: (Thickness × Width × Length) ÷ 12
Note: Thickness and Width are in inches, Length is in feet. This calculates nominal board feet. Actual lumber dimensions may vary.
Calculate Board Feet & Lumber Cost
Calculate board feet (BF) and estimate lumber costs for woodworking and construction projects. Supports custom dimensions and pricing.
1
Dimensions
Enter the thickness and width in inches, and length in feet.
2
Quantity
Specify the number of pieces needed.
3
Price
Optional: Enter price per board foot to estimate total cost.
Key Features
Board Feet Calculation
Convert thickness, width, and length into standard board feet (BF).
Cost Estimator
Input price per board foot to get total project cost.
Multi-Piece Support
Calculate totals for multiple pieces of the same dimension.
Frequently Asked Questions
A board foot is a unit of volume for timber equal to 144 cubic inches, theoretically 12 inches by 12 inches by 1 inch.
The formula is (Thickness (in) × Width (in) × Length (ft)) ÷ 12.
Lumber is sold by 'nominal' size (e.g., 2x4), but planing and drying reduce it to 'actual' size (1.5x3.5). Board feet is typically calculated using nominal dimensions.
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