1. What is Board Feet Calculation?

Board feet is a unit of measurement for the volume of lumber. One board foot equals 144 cubic inches (12" × 12" × 1"). The formula calculates how much usable lumber can be obtained from a log.

2. How Does the Calculator Work?

The calculator uses the board feet formula:

Where:

• \( BF \) — Board feet
• \( D \) — Diameter of the log in inches (small end inside bark)
• \( L \) — Length of the log in feet

Explanation: The formula accounts for the log's taper and waste during milling. The divisor 16 is an industry standard that accounts for these factors.

3. Importance of Board Feet Calculation

Details: Accurate board feet calculation is crucial for lumber industry professionals, woodworkers, and anyone buying or selling logs. It helps determine the value of timber and estimate project material needs.

4. Using the Calculator

Tips: Measure the diameter at the small end of the log (inside bark) in inches. Enter the length in feet. Both values must be greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Why is diameter squared in the formula?
A: Because the cross-sectional area of a circle is πr², and board feet calculation simplifies this relationship for practical use.

Q2: How accurate is this formula?
A: It provides a good estimate but actual yield may vary based on log quality, milling method, and saw kerf.

Q3: Does this work for all tree species?
A: Yes, though some species may have different recovery rates due to bark thickness or wood characteristics.

Q4: What's the difference between board feet and cubic feet?
A: Board feet measures lumber volume (1" thick × 12" × 12"), while cubic feet measures true volume (12" × 12" × 12").

Q5: Can I use this for standing trees?
A: For standing trees, you'd need additional measurements and formulas to estimate log volume first.