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Douglas fir is technically not a true fir (Abies genus), but is in its own genus: Pseudotsuga. The tree itself grows to be very large, and yields a large amount of usable lumber and veneer for plywood. It is an incredibly valuable commercial timber, widely used in construction and building purposes.
17 Αυγ 2020 · Douglas Fir Wood is a preferred wood species for decking, as it is moderately durable and easy to work with due to its lightweight. But it is susceptible to insect attack, so it should be treated to prevent deterioration before use.
Douglas-fir is a high-quality wood for the manufacturing of sashes, doors and windows. It is also used to produce a wide variety of products including general millwork, flooring, furniture, cabinets, veneer, vats, ships and boats, transmission poles and marine pilings.
12 Νοε 2011 · Douglas Fir Timber Properties: Wood Strength and More. Description: Douglas Fir has the highest strength-to-weight ratio of any wood species. Primarily found in the western US and Canada, Douglas Fir is frequently used for structural dimension lumber and for interior finish work in upper grades.
Douglas-fir is one of the world's best timber-producing species and yields more timber than any other species in North America, making the forestlands of western Oregon, Washington, and British Columbia the most productive on the continent. In 2011, Douglas-fir represented 34.2% of US lumber exports, to a total of 1.053 billion board-feet.
Douglas-fir the coastal provenances have proven to be best suited for most European conditions (Chapter 3.2). Douglas-fir grows best on well-drained, deep soils, whereas on poorly drained and dense soils the root system does not develop well (Chapter 3.1). It has an impressive growth potential.
The properties of Douglas fir wood. With growth heights of more than 60 meters and trunk diameters of up to four meters, the Douglas fir is one of the largest trees in the world.