Timber Volume Calculator

Calculate log board feet using Doyle, Scribner, or International 1/4-Inch log rules from log diameter and length.

Log Diameter (small end)

inches

Log Length

feet

Log Rule

Tab to move between fields

Board Feet

144 BF

Log Rule UsedDoyle

Cubic Volume22.3 ft³

Doyle Scale144 BF

Scribner Scale166 BF

International Scale738 BF

Lumber Recovery54%

How to Use This Calculator

Enter the Log Diameter at the small end in inches and the Log Length in feet.
Select the Log Rule: Doyle (common for hardwoods), Scribner (softwoods), or International 1/4-Inch (most accurate).
Review Board Feet under your chosen rule and compare all three scales in the chart.
Check Cubic Volume and Lumber Recovery percentage to understand wood utilization efficiency.
Use the Board Feet by Diameter chart to quickly look up yield for other log sizes at the same length.

How the result changes with Log Diameter (small end)

Log Diameter (small end): Diameter inside bark at the small end of the log in inches.
Log Length: Length of the log in feet. Standard log lengths are 8, 10, 12, 14, and 16 feet.
Log Rule: Scaling rule: 1 = Doyle (common in hardwoods), 2 = Scribner (common in softwoods), 3 = International 1/4-Inch (most accurate).

Identify Input Parameters
Log Diameter (small end) = 16, Log Length = 16, Log Rule = 1 = 3 input(s) provided
Calculate Board Feet
144 = 144
Calculate Log Rule Used
Log Rule Used
Doyle = Doyle
Calculate Cubic Volume
Cubic Volume
22.3 = 22.3