Spike's Calculators


International ¼ Inch Log Rule for Standing Trees

Spike VM

Approximate the gross board foot volume of a tree using the International ¼ Inch log scale.
Board foot value results are for Girard form class 78.

This calculator uses the merchantable height of the tree measured from a one-foot stump height to where the main stem diameter equals a specified limit, usually no less than 7 inches measured inside the bark.

International ¼ Inch Log Rule for Standing Tree BFM Volume

Merchantable Tree Height ft
Tree Diameter @ Breast Height inch


Board Foot Volume International ¼" bf


  1. enter the merchantable height of a tree in feet
  2. tree diameter measured at breast height in inches


  1. International ¼ Inch board feet volume of the tree as reported for Girard form class78

If you have any questions or comments please Contact Us
Privacy Policy
© 1998, VmNet.