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Lumber. Lumber is wood that has been processed into uniform and useful sizes (dimensional lumber), including beams and planks or boards. Lumber is mainly used for construction framing, as well as finishing (floors, wall panels, window frames ). Lumber has many uses beyond home building.
1⁄12 ft 3. The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada. It equals the volume of a board that is one-foot (305 mm) in length, one-foot (305 mm) in width, and one-inch (25.4 mm) in thickness. Board foot can be abbreviated as FBM (for "foot, board measure"), BDFT, or BF.
Parallel-strand lumber ( PSL) is a form of engineered wood made from parallel wood strands bonded together with adhesive. It is used for beams, headers, columns, and posts, among other uses. The strands in PSL are clipped veneer elements having a least dimension of not more than inch (6.4 mm) and an average length of at least 300 times this ...
Plank (wood) A plank used in the repair of a ship. A plank is timber that is flat, elongated, and rectangular with parallel faces that are higher and longer than wide. [ 1] Used primarily in carpentry, planks are critical in the construction of ships, houses, bridges, and many other structures. [ 2] Planks also serve as supports to form shelves ...
The history of the lumber industry in the United States spans from the precolonial period of British timber speculation, subsequent British colonization, and American development into the twenty-first century. Following the near eradication of domestic timber on the British Isles, the abundance of old-growth forests in the New World posed an ...
Dimensional lumber sizes such as "2 by 4" refers to a board whose finished dimensions are closer to 1 + 1 ⁄ 2 inches by 3 + 1 ⁄ 2 inches (1 + 3 ⁄ 4 inches by 3 + 3 ⁄ 4 inches is typical in the United Kingdom).
In 1924, the Central Committee developed standard that described lumber sizes, methodology for assigning design values, nomenclature, and inspection procedures. Several decades later, the American Lumber Standard Committee succeeded the Central Committee. The ALSC supervises and creates grading standards and standard patterns of softwood lumber.
A sawmill ( saw mill, saw-mill) or lumber mill is a facility where logs are cut into lumber. Modern sawmills use a motorized saw to cut logs lengthwise to make long pieces, and crosswise to length depending on standard or custom sizes ( dimensional lumber ). The "portable" sawmill is simple to operate. The log lies flat on a steel bed, and the ...
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