Engineered wood

Engineered wood, also called mass timber, composite wood, man-made wood, or manufactured board, includes a range of derivative <a href="/facts/Wood_products/z13NpHPl">wood products</a> which are manufactured by binding or fixing the strands, particles, fibres, <a href="/facts/Wood_veneer/HluaU5Yt">veneers</a>, or boards of wood, together with <a href="/facts/Adhesive/shTfIJ0E">adhesives</a>, or other methods of fixation to form <a href="/facts/Composite_material/UBysQldh">composite material</a>. 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 <a href="/facts/Cross-laminated_timber/57a32HL5">cross-laminated timber</a> (CLT) can be of any thickness from a few inches to 16 inches (410 mm) or more. These products are <a href="/facts/Engineering/RFVg8H3I">engineered</a> to precise design specifications, which are tested to meet national or international standards and provide uniformity and predictability in their structural performance. 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. Such wood based products typically undergo machine grading in order to be evaluated and categorized for mechanical strength and suitability for specific applications.
Typically, engineered wood products are made from the same <a href="/facts/Hardwood/KQT6MN8W">hardwoods</a> and <a href="/facts/Softwood/wnwmPJU0">softwoods</a> used to manufacture <a href="/facts/Lumber/jJfdSlJ6">lumber</a>. <a href="/facts/Sawmill/16NUH5RC">Sawmill</a> 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 <a href="/facts/Plywood/eM5WFvER">plywood</a>, <a href="/facts/Medium-density_fibreboard/7X8pMzTq">medium-density fibreboard</a> (MDF), or <a href="/facts/Particle_board/rEDzHwrh">particle board</a>. Some engineered wood products, like <a href="/facts/Oriented_strand_board/xnD9t0MF">oriented strand board</a> (OSB), can use trees from the <a href="/facts/Populus/SSgurBpF">poplar</a> family, a common but non-structural species.

Alternatively, it is also possible to manufacture similar <a href="/facts/Engineered_bamboo/GCnlHqtw">engineered bamboo</a> from bamboo; and similar engineered <a href="/facts/Cellulose/wYPafTU0">cellulosic</a> products from other <a href="/facts/Lignin/CdaxpB3b">lignin</a>-containing materials such as <a href="/facts/Rye/LwdwSNcp">rye</a> straw, <a href="/facts/Wheat/lrk6HdV3">wheat</a> straw, <a href="/facts/Rice/wvL1hBCz">rice</a> straw, <a href="/facts/Hemp/b8Y2vvpW">hemp</a> stalks, <a href="/facts/Kenaf/hTRyn3w9">kenaf</a> stalks, or <a href="/facts/Sugar_cane_residue/rXFNWeyU">sugar cane residue</a>, in which case they contain no actual wood but rather <a href="/facts/Vegetable_fiber/ucL2g6AX">vegetable fibers</a>.
<a href="/facts/Ready-to-assemble_furniture/ylLbFkyY">Flat-pack furniture</a> is typically made out of man-made wood due to its low manufacturing costs and its low weight.

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Engineered wood