Lumber volume is measured in Board Feet, which is a unit equal to a piece one inch thick and one-foot square. Lumber volume can be tallied as:

1. (1) Board Feet (BF) = (nominal thickness [inches] x nominal width [inches] x standard length [feet])/12.
2. (2) Fractions can be rounded to the nearest 1/10th of a board foot. Table 3 lists some board foot volumes for lumber of common sizes.

Authority: T.C.A. §§ 4-3-203 and 43-28-313. Administrative History: New rules filed May 24, 2022; effective August 22, 2022.