![]() The length of a unit of dimensional lumber is limited by the height and girth of the tree it is milled from. For wall framing, precut "stud" lengths are available, and are commonly used. It is thus possible to find 2×4s that are four, eight, and twelve feet in length. The length of a board is usually specified separately from the width and depth. Common sizes include 2×4 (pictured) (also two-by-four and other variants, such as four-by-two in Australia, New Zealand, and the UK), 2×6, and 4×4. Carpenters extensively use dimensional lumber in framing wooden buildings. (The word lumber is rarely used in relation to wood and has several other meanings.)ĭimensional lumber is lumber that is cut to standardized width and depth, often specified in millimetres or inches. In contrast, in Britain, many other Commonwealth nations and Ireland, the term timber is used in both senses. In the United States and Canada, milled boards are called lumber, while timber describes standing or felled trees. 5.2 Controlling termites and other insects. ![]()
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