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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 ASTM D143) is at 12% moisture content and clear of knots. [3] The hardness of wood varies with the direction of the wood grain. Testing on the surface of a plank, perpendicular to the ...
Chamaecyparis obtusa (Japanese cypress, hinoki cypress [2] or hinoki; Japanese: 檜 or 桧, hinoki) is a species of cypress native to central Japan in East Asia, [3] [4] and widely cultivated in the temperate northern hemisphere for its high-quality timber and ornamental qualities, with many cultivars commercially available.
NCSU Inside Wood project; Reproduction of The American Woods: exhibited by actual specimens and with copious explanatory text by Romeyn B. Hough; US Forest Products Laboratory, "Characteristics and Availability of Commercially Important Wood" from the Wood Handbook Archived 2021-01-18 at the Wayback Machine PDF 916K; International Wood ...
Durability: Cherry dents easily at a 950 on the Janka scale (which measures relative hardness of particular wood species), so limit it to areas like bedrooms and protect with rugs. Price Point ...
Lignum vitae is hard and durable, and is also the densest wood traded (average dried density: ~79 lb/ft 3 or ~1,260 kg/m 3); [4] it will easily sink in water. On the Janka scale of hardness, which measures hardness of woods, lignum vitae ranks highest of the trade woods, with a Janka hardness of 4,390 lbf (compared with Olneya at 3,260 lbf, [5] African blackwood at 2,940 lbf, hickory at 1,820 ...
Beech is a popular hardwood. Hardwood is wood from angiosperm trees. These are usually found in broad-leaved temperate and tropical forests. [1] In temperate and boreal latitudes they are mostly deciduous, but in tropics and subtropics mostly evergreen. Hardwood (which comes from angiosperm trees) contrasts with softwood (which is from ...
In China, C. lanceolata is sought after for its soft yet highly durable wood and having a scent similar to the coast redwood (Sequoia sempervirens) and sugi (Cryptomeria japonica). [10] Cunninghamia lanceolata has been included in Chinese folklore for over 1000 years and the roots, branches, leaves and bark from the tree have been used for pain ...
The following table associates tree species, wood name and wood colour. The Dipterocarp timber classification system was developed by Colin Fraser Symington (1905-1943), a forester at the Malayan Forestry Service, and H. E. Desch, who researched comparative wood anatomy.