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The Douglas fir (Pseudotsuga menziesii) [4] is an evergreen conifer species in the pine family, Pinaceae. ... The wood has historically been favored as firewood, ...
By far the best-known is the very widespread and abundant North American species Pseudotsuga menziesii, a taxonomically complex species [14] divided into two major varieties (treated as distinct species or subspecies by some botanists): coast Douglas-fir or "green Douglas-fir", on the Pacific coast; and Rocky Mountain Douglas-fir or "interior ...
Woodworking is the skill of making items from wood, ... Within the USA fir, also known as Douglas fir, is inexpensive and common at local home centers. It has a ...
Coast Douglas-fir is the second-tallest conifer in the world (after coast redwood), and the third-tallest of all trees, (after Eucalyptus regnans).Currently, coast Douglas-fir trees 60–75 metres (197–246 ft) or more in height and 1.5–2 metres (4.9–6.6 ft) in diameter are common in old growth stands, [4] and maximum heights of 100–120 metres (330–390 ft) and diameters up to 4.5–5. ...
Incisions made in sawed material usually are parallel with the grain of the wood. This process is common in North America (since the 1950s), where Douglas-fir products and pole butts of various species are prepared before treatment. It is most useful for woods that are resistant to side penetration, but allow preservative transport along the grain.
In the United States, Douglas-Fir timber piles are used most often in the Pacific Northwest while Southern Pine are used most commonly on the East Coast. Douglas-Fir is used most commonly on the west coast due to its high strength, renewability and low cost. [5]
Pseudotsuga menziesii var. glauca, or Rocky Mountain Douglas-fir, is an evergreen conifer native to the interior mountainous regions of western North America, from central British Columbia and southwest Alberta in Canada southward through the United States to the far north of Mexico. [2]
Wood from a gymnosperm tree, i.e. trees in the divisions Pinophyta and Ginkgophyta. Despite the name, softwood is not necessarily soft or lightweight (e.g. douglas-fir is a softwood). Contrast hardwood. spalting A change in the texture, strength and color of wood caused by colonies of fungus growing within the dead wood. Where colonies of ...