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Towards the centre of the trunk, the wood gets less hard. The wood has a Janka ball hardness of 112.5 - 154.7 kgf/cm 2 (1600 – 2200 psi), which is greater than that of oak (70.3 - 84.4 kgf/cm 2) and Douglas fir (35.9 kgf/cm 2). Coconut timber is classified according to three degrees of density: High-density timber (dermal) – hard: 600–900 ...
In the narrow sense of the terms, wood, forest, forestry and timber/lumber industry appear to point to different sectors, in the industrialized, internationalized world, there is a tendency toward huge integrated businesses that cover the complete spectrum from silviculture and forestry in private primary or secondary forests or plantations via the logging process up to wood processing and ...
Timber-framed structures differ from conventional wood-framed buildings in several ways. Timber framing uses fewer, larger wooden members, commonly timbers in the range of 15 to 30 cm (6 to 12 in), while common wood framing uses many more timbers with dimensions usually in the 5- to 25-cm (2- to 10-in) range.
Lumber’s price drop has been particularly dramatic in just the last 90 days in the futures market, with contract prices for July falling 28% to $466 per thousand board feet (futures prices are ...
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 ...
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. Plastic 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.
Its 38 stations along over 43.5 kilometers (27.0 mi) of mostly elevated track form two lines. LRT Line 1, opened in 1984, travels a north–south route. LRT Line 2, opened in 2003, travels along an east–west route. All of the stations of LRT lines 1 and 2 are elevated, except for the Katipunan station (which is underground). [64]