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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)
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%.
Because the specific gravity as defined above uses an unrealistic condition, woodworkers tend to use the "average dried weight", which is a density based on mass at 12% moisture content and volume at the same (ρ 12). This condition occurs when the wood is at equilibrium moisture content with air at about 65% relative humidity and temperature ...
A sample of MDF. Medium-density fibreboard (MDF) is an engineered wood product made by breaking down hardwood or softwood residuals into wood fibre, often in a defibrator, combining it with wax and a resin binder, and forming it into panels by applying high temperature and pressure. [1]
The wood moisture content is above 25% on a dry-weight basis; The environment is sufficiently warm; Oxygen (O 2) is present; Wood with less than 25% moisture (dry weight basis) can remain free of decay for centuries. Similarly, wood submerged in water may not be attacked by fungi if the amount of oxygen is inadequate. Fungi lumber/timber ...
The most widespread use of WPCs in North America is in outdoor deck floors, but it is also used for railings, fences, landscaping timbers, cladding and siding, park benches, molding and trim, prefab houses under the tradename Woodpecker WPC., [4] window and door frames, and indoor furniture. [5]
The wood is naturally rot-resistant and provides raw material for fence posts. Posts cut from old-growth Ashe junipers have been known to last in the ground for more than 50 years. Over 100 years ago, most old-growth Ashe junipers were cut and used not only for fence posts, but also for foundation piers, telegraph and telephone poles, roof ...
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 ...