Free Lumber Board Feet Calculator
Board feet and cost for dimensional lumber.
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Inputs
Result
Total board feet
40.00 bf
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Short answer
Board feet and cost for dimensional lumber.
What is the Lumber Board Feet Calculator?
Board feet and cost for dimensional lumber.
How does the Lumber Board Feet Calculator work?
Enter the inputs above and read the result.
Formula
Variables
bf1 in × 12 in × 1 ft board
Explanation
One board foot equals a piece of wood 1 inch thick, 12 inches wide and 1 foot long.
Examples
Applications
Advantages
Limitations
Common mistakes
Tips
Related concepts
The Lumber Board Feet Calculator sits inside the Construction Calculators hub, in the structures & exteriors cluster. Framing, roofing, fencing and outdoor work. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding Lumber Board Feet
Board feet and cost for dimensional lumber. Within construction calculators, lumber board feet belongs to the structures & exteriors cluster, where it shares terminology and assumptions with closely related tools.
Learning how lumber board feet is calculated
One board foot equals a piece of wood 1 inch thick, 12 inches wide and 1 foot long. Working through the variables one at a time — bf — makes the result reproducible by hand and easier to sanity-check.
Using lumber board feet to make a decision
Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How lumber board feet compares with related measures
on-centre spacing, pitch, linear feet, span all describe adjacent aspects of structures & exteriors. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
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