Most widely used log scaling rule in eastern USA. Calculates board foot volume from diameter and length. Instantly compare Doyle, Scribner, International Rule and IS 1902 India.
Board Foot Volume Calculator
Diameter Inside Bark at the small end. Doyle is based on DIB.
Standard lengths: 8, 10, 12, 14, 16 ft. India IS: 1.8m to 6m.
Enter 0 if measuring DIB directly.
| Log Rule | Formula | BF per log | Note |
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The Doyle Rule is the most widely used log scaling standard in eastern and southern United States. Developed by Edward Doyle in the 1820s, it estimates the number of 1-inch lumber boards that can be sawn from a log. Despite known underestimation for small logs, it remains the industry standard across North America for hardwood log purchases.