The Brereton Log Rule formula to calculate board feet is:
BF=0.06545D2L
The Brereton Log Rule calculates the volume of a log in board feet. It does not take into account any deductions needed for saw kerf, slabs, or edgings. It gives the volume of a log in terms of board feet, calculated at one cubic foot = 12 board feet.
Let's assume the following values:
Using the formula:
BF=0.06545×202×16=418.88 board feet
Diameter (inches) | Length (feet) | Board Feet |
---|---|---|
6 | 16 | 37.70 |
8 | 16 | 67.02 |
10 | 16 | 104.72 |
12 | 16 | 150.80 |
14 | 16 | 205.25 |
16 | 16 | 268.08 |
18 | 16 | 339.29 |
20 | 16 | 418.88 |
22 | 16 | 506.84 |
24 | 16 | 603.19 |
26 | 16 | 707.91 |
28 | 16 | 821.00 |
30 | 16 | 942.48 |
32 | 16 | 1,072.33 |
34 | 16 | 1,210.56 |
36 | 16 | 1,357.17 |