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The thickness of the butt, or thicker end of the tapered cut, is usually 3 ⁄ 8 inch (9.5 mm) thick but is also commonly made to be 5 ⁄ 8 inch (16 mm), and can be made to any custom specifications.
When free hydroxyl groups are transformed to acetoxy groups, the ability of the wood to absorb water is greatly reduced, rendering the wood more dimensionally stable and, because it is no longer digestible, extremely durable. In general, softwoods naturally have an acetyl content from 0.5 to 1.5% and more durable hardwoods from 2 to 4.5%.
For hardwood flooring, the test usually requires an 80 mm × 150 mm (3 in × 6 in) sample with a thickness of at least 6–8 mm, and the most commonly used test is the ASTM D1037. When testing wood in lumber form, the Janka test is always carried out on wood from the tree trunk (known as the heartwood), and the standard sample (according to ...
Cordwood masonry wall detail. The method is sometimes called stackwall because the effect resembles a stack of cordwood. A section of a cordwood home. Cordwood construction (also called cordwood masonry or cordwood building, alternatively stackwall or stovewood particularly in Canada) is a term used for a natural building method in which short logs are piled crosswise to build a wall, using ...
Spanish Cedar, cedro, Brazilian mahogany (Cedrela odorata) Light bosse, pink mahogany (Guarea cedrata) Dark bosse, pink Mahogany (Guarea thompsonii) American muskwood (Guarea grandifolia) Carapa, royal mahogany, demerara mahogany, bastard mahogany, andiroba, crabwood (Carapa guianensis) [8] Bead-tree, white cedar, Persian lilac (Melia azedarach)
Simple split-rail fence Log fence with double posts (photo taken in 1938). A split-rail fence, log fence, or buck-and-rail fence (also historically known as a Virginia, zigzag, worm, snake or snake-rail fence due to its meandering layout) is a type of fence constructed in the United States and Canada, and is made out of timber logs, usually split lengthwise into rails and typically used for ...
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The pressing cycle operates in stages, with the mat thickness being first compressed to around 1.5 times the finished board thickness, then compressed further in stages and held for a short period. This gives a board profile with zones of increased density, thus mechanical strength, near the two faces of the board and a less dense core.