Girard form class

English

Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun

Girard form class (plural Girard form classes)

  1. The ratio of diameter inside bark at the top of the first 16-foot log to the diameter outside bark at breast height, used to estimate the board-foot volume of whole trees.
This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.