Lumber

Lumber

Timber after it has been sawed and split into planks or other smaller components that can be used as building material.

Industry: Building materials

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Lumber

reverberation

Building materials; Lumber

The persistent echoing of sound within an enclosure after the original source of the sound has stopped, due to repeated reflection between the enclosing surfaces

cross grain

Building materials; Lumber

Lumber in which the fibers deviate from a line parallel to the sides of the piece. Cross grain may be either diagonal or spiral grain or a combination of the two.

tangential

Building materials; Lumber

Coincident with a tangent at the circumference of a tree or log, or parallel to such a tangent. In practice, it often means roughly coincident with a growth ring.

distortion

Building materials; Lumber

A drying defect caused by the differential shrinkage along the three axes of a piece of wood. Distortion may take the form of cup, bow, twist, spring or diamonding.

lining

Building materials; Lumber

The covering of internal walls and ceilings of a building. Lumber linings include sawn and profiled solid lumber, plywood, medium density fiber and other materials.

redry

Building materials; Lumber

In kiln or veneer drying, a process whereby dried material found to have a moisture content level higher than desired is returned to the dryer for additional drying.

shake

Building materials; Lumber

Separation or breakage of the wood fibers caused by stresses in the standing tree or by felling and handling of the log. It is not caused by shrinkage during drying.