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Oak timber is a strong and hard wood with many uses, such as for furniture, floors, building frames, and veneers. [70] The wood of a red oak Quercus cerris (the Turkey oak) has better mechanical properties than those of the white oaks Q. petraea and Q. robur; the heartwood and sapwood have similar mechanical properties. [71]
The coniferous Coast redwood (Sequoia sempervirens) is the tallest tree species on earth.. The world's superlative trees can be ranked by any factor. Records have been kept for trees with superlative height, trunk diameter (girth), canopy coverage, airspace volume, wood volume, estimated mass, and age.
The world's tallest planted tree. Southern Africa (non native), but endemic to eastern Australia) [40] [41] Grand fir (Abies grandis) 81.4 267 Conifer Glacier Peak Wilderness, Washington, United States. Western North America [42] [23] Shorea gibbosa: 81.11 266.1 Flowering plant River Flats of Tawau Hills National Park, Sabah on Borneo Southeast ...
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 ...
Bur oak (Quercus macrocarpa) Post oak (Quercus stellata) Swamp white oak (Quercus bicolor) Southern live oak (Quercus virginiana) Swamp chestnut oak (Quercus michauxii) Chestnut oak (Quercus prinus) Chinkapin oak (Quercus muhlenbergii) Canyon live oak (Quercus chrysolepis) Overcup oak (Quercus lyrata) English oak (Quercus robur) Red oak ...
Wood is a structural tissue/material found as xylem in the stems and roots of trees and other woody plants.It is an organic material – a natural composite of cellulosic fibers that are strong in tension and embedded in a matrix of lignin that resists compression.
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 ...
Oak: Quercus spp. Yellowish brown 865 kg/m 3: 1,458 lb/cu yd Oak is strong and durable, with straight silvery grain. It is used for preparing sporting goods. Palm Arecaceae: Dark brown 1,040 kg/m 3: 1,750 lb/cu yd Throughout India It contains ripe wood in the outer crust. The colour of this ripened wood is dark brown. It is strong, durable and ...