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Engineering wood

Wood, commonly known as square wood, is cut into square bars of a certain shape according to actual processing needs. It is generally used for decoration and door and window materials, template support and roof truss materials in structural construction,

Engineered wood, also called mass timbercomposite woodman-made wood, or manufactured board, includes a range of derivative wood products which are manufactured by binding or fixing the strands, particles, fibres, or veneers or boards of wood, together with adhesives or other methods of fixation to form composite material The panels vary in size but can range upwards of 64 by 8 feet (19.5 by 2.4 m) and in the case of  cross-laminated timber (CLT) can be of any thickness from a few inches to 16 inches or more. These products are engineered to precise design specifications which are tested to meet national or international standards. Engineered wood products are used in a variety of applications, from home construction to commercial buildings to industrial products The products can be used for joists and beams that replace steel in many building projects.The term mass timber describes a group of building materials that can replace concrete assemblies. 

Typically, engineered wood products are made from the same hardwoods and softwoods used to manufacturelumber. Sawmill scraps and other wood waste can be used for engineered wood composed of wood particles or fibers, but whole logs are usually used for veneers, such as plywood medium-density  fibreboard(MDF) or  particle board.Some engineered wood products, likeoriented strand board (OSB), can use trees from the poplar family, a common but non-structural species.

Engineered wood

Alternatively, it is also possible to manufacture similar engineered bamboo from bamboo; and similar engineered cellulosic products from otherlignin-containing materials such as rye straw,wheat straw, rice straw, hemp stalks, kenaf stalks, or sugar cane residue, in which case they contain no actual wood but rather vegetable fibers.

Flat-pack furniture is typically made out of man-made wood due to its low manufacturing costs and its low weight.
It is mainly used to make wooden keel (including ceiling keel and floor keel) in decoration works; it is mainly used to make concrete form corrugated wood in civil engineering; it is widely used in the production of suspended ceilings, partition walls and solid wood floor skeletons.