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International ¼ Inch Log Rule for Standing Trees

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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

Results:

Board Foot Volume International ¼" bf

Calculation

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

Results

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


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