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2. Plywood - Wikipedia

   en.wikipedia.org/wiki/Plywood

   The sizes of the most commonly used plywood sheets are 4 by 8 feet (1,220 mm × 2,440 mm) [20] which was first used by the Portland Manufacturing Company, who developed modern veneer core plywood for the 1905 Portland World Fair. A common metric size for a sheet of plywood is 1200 × 2400 mm. 5 × 5 feet (1,500 × 1,500 mm) is also a common ...

3. Flat (theatre) - Wikipedia

   en.wikipedia.org/wiki/Flat_(theatre)

   They are normally made of 1 ⁄ 4-inch (6.4 mm) plywood, and are triangles with corners of 45°, 45°, and 90°. They are most often made by ripping the plywood at 6 + 1 ⁄ 2 inches (170 mm) and then mitering it at 45 degree angles to create triangles with 9-inch (230 mm) legs. Keystones join the toggles to the stiles of soft-cover flats.

4. Lumber - Wikipedia

   en.wikipedia.org/wiki/Lumber

   Re-sawing is the splitting of 1-to-12-inch (25–305 mm) hardwood or softwood lumber into two or more thinner pieces of full-length boards. For example, splitting a 10-foot-long (3.0 m) 2×4 (1 + 1 ⁄ 2 by 3 + 1 ⁄ 2 in or 38 by 89 mm) into two 1×4s (3 ⁄ 4 by 3 + 1 ⁄ 2 in or 19 by 89 mm) of the same length is considered re-sawing.

5. Molded plywood - Wikipedia

   en.wikipedia.org/wiki/Molded_plywood

   Molded plywood is the ... The result is a continuous veneer strip which is cut into the required widths. You can create veneers with thicknesses of 0.6 mm to 2.3 mm.

6. Cross-laminated timber - Wikipedia

   en.wikipedia.org/wiki/Cross-laminated_timber

   Approximately 2.5 mm is trimmed off the top and bottom faces and 3.8 mm is trimmed off the sides to ensure a flat surface. [13] In some cases, when the lumber edges are not glued because they have an acceptable width tolerance, only the top and bottom faces are planed.

7. Framing (construction) - Wikipedia

   en.wikipedia.org/wiki/Framing_(construction)

   Studs usually consist of 1 + 1 ⁄ 2-by-3 + 1 ⁄ 2-inch (38 mm × 89 mm) or 1 + 1 ⁄ 2-by-5 + 1 ⁄ 2-inch (38 mm × 140 mm) lumber and are commonly spaced at 16 inches (410 mm) on center. This spacing may be changed to 12 or 24 inches (300 or 610 mm) on center depending on the load and the limitations imposed by the type and thickness of the ...