- Bark or lack of wood from any cause on edge or corner of a piece except for eased edges.
- Any variation from a true or plane surface. Warp includes bow, crook, cup, and twist, or any combination thereof.
- Wood in which the fibers collectively take the form of waves or undulations.
- The mechanical or chemical disintegration and discoloration of the surface of wood caused by exposure to light, the action of dust and sand carried by winds, and the alternate shrinking and swelling of the surface fibers with the continual variation in moisture content brought by changes in the weather. Weathering does not include decay.
- Lumber sorted for the white sapwood. Usually refers to hard or soft maple.
- The weight of wood measured in pounds per cubic foot at 12 percent moisture content. The more dense the wood, the heavier it is.
- Holes and channels cut in wood by insects. Breakdown is:
Pin Worm Hole: One not over 1/16" in diameter.
Spot Worm Hole:One over 1/16" but not more than 1/8" in diameter.
Shot Worm Hole:One over 1/8" but less than 1/4" in diameter.
Grub Hole:One 1/4" in diameter or larger.
The Wood Glossary