BoardFeetCalc
Board Feet Calculator
Board Feet Calculator
Calculate board feet for lumber projects using BF = (T × W × L) / 144
Calculate precise board footage for lumber purchases. Use the standard board foot formula for accurate material estimation.
Key Features
Board feet formula
Thickness converter
Batch calculator
Pricing integration
How to Calculate Board Feet
Get Dimensions
Measure length (inches), width (inches), and thickness (inches)
Use Formula
Apply formula: (L x W x T) / 144 = board feet
Calculate Total
Multiply board feet by number of pieces
Add Waste
Add 10-20% for cutting waste
Use Cases
Lumber purchasing
Cost calculation
Project estimation
Material tracking
Frequently Asked Questions
Why is the board foot formula (L x W x T) / 144?
144 is the result of 12 x 12, converting cubic inches to board feet (1 board foot = 144 cubic inches).
Do I measure finished or rough dimensions?
Measure nominal dimensions. Actual dimensions are smaller due to planing.
What if lumber is sold by linear feet not board feet?
Board feet = (width in inches x length in feet x thickness in inches) / 12
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