Tree Board Foot Calculator
Estimate board feet and timber yield from standing trees based on DBH (diameter at breast height), merchantable log height, and species waste factors.
Tree Measurement
Enter tree dimensions to estimate board foot yield
Tip: DBH is measured at 4.5 feet above ground. Merchantable height is the usable length from stump to first major defect or branch.
Doyle Rule
Most conservative estimate. Formula: ((D-4)²/16) × L. Best for smaller diameter logs (12-28"). Commonly used in eastern US.
Scribner Rule
Moderate estimate based on diagram method. Most widely used in US. Provides middle-ground between Doyle and International rules.
International Rule
Most accurate for large logs. Formula based on cylinder volume with taper. Preferred for hardwoods and large diameter timber.
Frequently Asked Questions
What is DBH and how do I measure it?
Which log rule should I use?
What is a typical waste factor?
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