Diameter at Breast Height

Double end trimmed; passed through saws to be smoothly trimmed at both ends, commonly in length increments of two feet

A machine used to remove bark from logs prior to processing them into lumber, panels, or pulp

Lumber used primarily for roofing and flooring applications; most common sizes of decking are: 5/4 X 6, 2 X 6, 2 X 8, 3 X 6, and 4 X 6; decking is often sawn with tongues and grooves and in various patterns (double tongue–and–groove and single tongue–and–groove); patterns are sometimes sawn on the face to be exposed; these patterns are often grooves or various shapes, depths and sizes

To remove limbs from trees before processing

A reference to the specific gravity of wood; lumber classified as "dense" has six or more annual rings per inch, plus one third or more summer wood, measured at either end; pieces averaging less than six rings per inch also qualify if the rings average one half or more summer wood

A measurement of strength in lumber involving the basic properties of wood; these are: fiber stress and bending (Fb), tension parallel to grain (Ft), horizontal shear (Fv), compression perpendicular to grain (Fcl), and modulus of elasticity (E)

The same as fall down; pieces that did not meet grade or size requirements in the manufacturing process

A carpentry tool consisting of a cutting blade with handles attached at each end; it is used by drawing it towards the body, with the cutting edge of the knife facing the user; it is used for rounding edges, reducing width or thickness of a board, etc

Low grade lumber or panels used to separate and bind ship cargos, stakes, strips or other pieces used to hold and protect merchandise during truck shipment; southern yellow pine lumber that is below number two grade but not lower than number four