Spike's Calculators


Doyle Log Rule for Standing Trees using Metric Measurements

Spike VM

Approximate the gross board foot volume of a tree using the Doyle log Rule with metres for tree height and centimetres for the diameter measured @ breast height, 1.37 metres.
Board foot value results are as reported as in the Girard form class 78 table.

The merchantable tree height is from the 30 centimetres stump to a minimum top diameter which is usually a no less than 18 centimetres diameter measured inside bark.

Doyle Log Rule for Standing Tree using Metric Measurements

Merchantable Tree Height in Metres m
Tree Diameter @ Breast Height cm


Board Foot Volume Doyle bf


  1. enter the merchantable height of a tree in metres
  2. tree diameter measured at breast height @ 1.37 metres in centimetres


  1. board foot volume of the tree as reported in Girard form class 78
If you have any questions or comments please Contact Us
Privacy Policy
© 1998, VmNet.