Ad
related to: is douglas fir a hardwood or a softwood
Search results
Results From The WOW.Com Content Network
The Douglas fir (Pseudotsuga ... The species is extensively used in forestry management as a plantation tree for softwood timber. Douglas-fir is one of the world's ...
The hardest hardwoods are much harder than any softwood, [4] but in both groups there is enormous variation with the range of wood hardness of the two groups overlapping. For example, balsa wood, which is a hardwood, is softer than most softwoods, whereas the longleaf pine, Douglas fir, and yew softwoods are much harder than several hardwoods.
Coast Douglas-fir (Pseudotsuga menziesii var. menziesii) Rocky Mountain Douglas-fir ... National Hardwood and Lumber Association; American Hardwood Information Center;
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 ...
Approximately 80% of timber comes from softwood, such as cedar trees, Douglas fir, juniper, pine, and many more. [6] Although they are called 'softwood,' trees, they are not actually softer (in texture) in comparison to hardwood trees. The term just refers to wood that comes from gymnosperms or conifers.
Articles related to the Douglas fir (Pseudotsuga menziesii) and its varieties. It is an evergreen conifer species in the pine family, Pinaceae.
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.
Cheaper "hardwood" doors, for instance, now consist of a thin veneer bonded to a core of softwood, plywood or medium-density fibreboard (MDF). Hardwoods may be used in a variety of objects, but are most frequently seen in furniture or musical instruments because of their density which adds to durability, appearance, and performance.