Doyle Scale Calculator - Free Online Tool

The Doyle Scale is a standardized method for estimating the merchantable volume of round timber. Our calculator simplifies this complex formula, allowing you to determine board feet quickly and accurately.

To use the tool, you only need two primary measurements: the diameter (D) and the length (L) of your log. Simply input these dimensions into the designated fields. The calculator then applies the Doyle formula, which is designed to estimate usable lumber volume based on typical milling practices.

• Input Diameter: Enter the diameter in inches (D).
• Input Length: Enter the length in feet (L).
• Calculate: Click 'Calculate' to receive your estimated board footage.

This process provides an instant, reliable estimate for material purchasing and job planning.

To get the most accurate and useful results from your Doyle Scale calculation, preparation is key. Before measuring any logs, ensure you are using appropriate tools.

• Measure Diameter at Breast Height (DBH): Always measure the diameter at a consistent height, typically 4 feet above the ground. This standardized measurement is necessary for reliable calculation.
• Account for Moisture Content: While this calculator handles volume, remember that wood shrinks as it dries. If your project requires specific dimensional stability, factor in the expected moisture content change (e.g., aiming for 15% MC).
• Measure Multiple Samples: If calculating for a large batch of logs, take measurements from several different sections or species to get an average, rather than relying on just one log's measurement.

  By following these tips, your calculated board footage will provide the most robust estimate possible.