Board foot is a unit of volume measurement for lumber in the US and Canada. It’s important to note that the measurement is applied before finishing. The value of lumber is determined by quality and quantity. A single large tree tends to be more valuable than multiple trees.
Board foot is a unit of volume measurement used in reference to lumber in the United States and Canada. Other nations use a different system of measurement for their lumber and lumber. The foot of the board is made from a one foot square by one inch (about 2.360 cubic centimeters) piece of wood. Board foot applies to rough or unfinished lumber, not dimension lumber that has been finished and planed, and will therefore be slightly smaller.
Understanding the units of measurement used with lumber can be difficult due to the fact that wood shrinks during processing. As a result, the actual measurement may differ from the stated measurement. In the case of a board foot, it’s important to remember that the measurement is applied before the lumber is finished.
This term is often transformed into the acronym FBM, which stands for “foot, board size”. As a method of shorthand, if the measurements start going up into the thousands of board feet, an M is added to the acronym, as in 19 MFBM, meaning “19 thousand board feet”. Another M turns the measurement into millions: 3 MMFBM is three million board feet.
A common application of measuring board foot is in assessing the value of a tree or group of trees. The calculations can be used to determine how many feet of board will be harvested, which in turn determines the value of the backing. It is not uncommon for the value of a single large tree to be expressed in board feet as well, in part so that the person selling the tree knows how much lumber has been harvested from the tree and, therefore, how much is owed to him .
The value of the lumber is determined by more factors than the board feet that can be mined. The quality of the wood is also important. X amount of board feet from a single tree tends to be more valuable than the same amount of multiple trees. This is partly because if the wood comes from a single tree, very large boards and sheets can be cut from it. It’s also because the wood can be denser and higher quality due to the age of the tree.
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