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

water-repellent preservative

Building materials; Lumber

A water repellent that contains a preservative which, after application to wood and drying, accomplishes the dual purpose of imparting resistance to attack by fungi or insects and also retards ...

wavy figure

Building materials; Lumber

Markings in the form of waves or undulations. Figures with large undulations are described as 'wavy', while others with small, irregular undulations are 'curly', and those with small, regular ...

A joint where a hole or slot known as a mortice (a) is formed in a piece of lumber to receive the reduced end of similar size or tenon (b) from another piece. The joint is often secured with wedges, ...

check

Building materials; Lumber

A separation of fibers along the grain forming a fissure, but not extending through the piece from face to face. Checks commonly resulting from stresses built up during seasoning. They run radially, ...

spiral grain

Building materials; Lumber

A form of cross grain in lumber in which the fibers take a spiral course about the trunk of a tree instead of the normal vertical course. The spiral may extend in a right handed or left-handed ...

set

Building materials; Lumber

Permanent deformation in wood that occurs during drying when the tensile and compressive stress exceeds its elastic limit. Set prevents normal shrinkage of the lumber and can lead to more obvious ...

board

Building materials; Lumber

1. A piece of sawn, hewn, or dressed lumber of greater width than thickness. Usually 19 mm to 38 mm thick and 75 mm or more wide. 2. Manufactured products supplied as rigid or semi-rigid sheets, eg. ...