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  2. Wood preservation - Wikipedia

    en.wikipedia.org/wiki/Wood_preservation

    Apart from structural wood preservation measures, there are a number of different chemical preservatives and processes (also known as timber treatment, lumber treatment or pressure treatment) that can extend the life of wood, timber, and their associated products, including engineered wood. These generally increase the durability and resistance ...

  3. Parallel-strand lumber - Wikipedia

    en.wikipedia.org/wiki/Parallel-strand_lumber

    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. It is used for beams, headers, columns, and posts, among other uses.

  4. Retaining wall - Wikipedia

    en.wikipedia.org/wiki/Retaining_wall

    A retaining wall is designed to hold in place a mass of earth or the like, such as the edge of a terrace or excavation. The structure is constructed to resist the lateral pressure of soil when there is a desired change in ground elevation that exceeds the angle of repose of the soil.

  5. Laminated veneer lumber - Wikipedia

    en.wikipedia.org/wiki/Laminated_veneer_lumber

    LVL is a type of structural composite lumber, comparable to glued laminated timber (glulam) but with a higher allowable stress. [1] A high performance more sustainable alternative to lumber, Laminated Veneer Lumber (LVL) beams, headers and columns are used in structural applications to carry heavy loads with minimum weight. [2]

  6. Lumber - Wikipedia

    en.wikipedia.org/wiki/Lumber

    Timber framing is a style of construction that uses heavier framing elements (larger posts and beams) than modern stick framing, which uses smaller standard dimensional lumber. The timbers are cut from log boles and squared with a saw, broadaxe or adze, and then joined together with joinery without nails. Modern timber framing has been growing ...

  7. Chromated copper arsenate - Wikipedia

    en.wikipedia.org/wiki/Chromated_copper_arsenate

    Chromated copper arsenate (CCA) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions.It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects.

  8. Creosote - Wikipedia

    en.wikipedia.org/wiki/Creosote

    Currently, all creosote-treated wood products—foundation and marine pilings, lumber, posts, railroad ties, timbers, and utility poles—are manufactured using this type of wood preservative. The manufacturing process can only be a pressure process under the supervision of a licensed applicator certified by the State Departments of Agriculture.

  9. Alkaline copper quaternary - Wikipedia

    en.wikipedia.org/wiki/Alkaline_copper_quaternary

    The copper in ACQ treated wood accelerates corrosion of galvanized steel fasteners (such as nails and screws) 10 times or more in comparison with CCA-treated wood. Stainless steel (AISI 316) is not affected. [7] Aluminium and Galvalum fasteners should be avoided. [8] One should use fasteners made of hot-dipped galvanized steel, copper, or ...

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