Calculate log volume using Doyle, Scribner, or International scale formulas. Enter diameter and length to get board feet measurements for lumber estimation.
Total Log Volume
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Volume per Log
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Scale Method
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Doyle scale tends to underestimate volume, especially for smaller logs. Scribner scale is more accurate for logs 12-40 inches in diameter. International scale is considered the most accurate across all log sizes and is widely used internationally.
Always measure the small end diameter inside the bark (DIB). This is the standard measurement used by all major log rules as it represents the actual usable wood volume.
Measure to the last full foot - do not round up. For example, a log that is 15 feet 8 inches should be entered as 15 feet. Hardwood logs especially follow this rule strictly.
BF stands for Board Feet, which is the standard unit for measuring lumber volume. One board foot equals a piece of wood 12 inches × 12 inches × 1 inch thick.
Doyle scale is common in the Eastern US, Scribner is popular in the Western US, and International scale is used globally. Check with local mills or foresters for regional preferences.
Each scale uses different formulas and assumptions about waste, kerf loss, and lumber recovery. This results in varying estimates, which is why it's important to know which scale your buyer uses.
Most log scales are designed for sawlogs typically 8 inches and larger. Smaller logs are usually measured by different methods as they're often used for pulpwood or other products.
These calculations provide estimates based on standard formulas. Actual lumber yield can vary due to log defects, sawing methods, kerf width, and individual log characteristics.