Estimate usable lumber from a log based on NHLA grading yield factors. Free online woodworking calculator with instant, accurate results.
A quick decision brief for this specific tool
Small-End Diameter (inches), Log Length (feet), Target Grade
Hardwood Grading Yield Calculator
1 documented formula across 1 calculation mode
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This page shows the available inputs, calculation steps, and recorded method or source notes for Hardwood Grading Yield Calculator. Source coverage varies by tool; independently confirm consequential results.
This page shows the available inputs, calculation steps, and recorded method or source notes for Hardwood Grading Yield Calculator. Source coverage varies by tool; independently confirm consequential results.
This page shows the available inputs, calculation steps, and recorded method or source notes for Hardwood Grading Yield Calculator. Source coverage varies by tool; independently confirm consequential results.
Updated: July 2026
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When a formula combines multiple measurements, all inputs must use compatible units. Convert everything to the same system (metric or imperial) before calculating.
The Hardwood Grading Yield Calculator provides precise, instant unit conversions and calculations for professional, educational, and field applications. Designed for accurate results based on standardized physical and mathematical formulas.