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Douglas Fir

Douglas Fir’s heartwood is a light reddish-brown shade. Used in heavy construction work


Douglas Fir’s heartwood is a light reddish-brown shade, and the contrast between earlywood and latewood provides a prominent growth ring figure which shows as an abrupt colour contrast on plain sawn timber and rotary cut veneers. The timber is straight grained but sometimes with wavy or spiral grain and with a uniform medium texture. Weight 530 kg/m3 (33 lb/ft3); specific gravity .53

Timber from Pacific coastal districts is heavier, harder and stronger than from mountain areas, the latter being equivalent to timber from the UK. It has high stiffness and crushing strength, medium resistance to shock loads and high bending strength.

Douglas Fir dries rapidly and well without much checking or warping, but knots tend to split and loosen. There is small movement in service. Resin canals tend to bleed and show as narrow brown lines on longitudinal surfaces.

Moderately durable. Resistant to preservative treatment, especially American mountain-grown timber.

Main Uses

More veneer and plywood are produced from Douglas Fir than any other timber. Also for heavy construction work, laminated arches and roof trusses, interior and exterior joinery, poles, piles, paper pulp, vats and tanks. Dock and harbour work, marine piling, ship building, mining timber, railway sleepers, slack and tight cooperage


Softwoods Hardwoods Decking
Douglas Fir
Pitch Pine
Siberian Larch
Southern Yellow Pine
Western Red Cedar
Ash Balau
Beech Cherry
European Oak Maple
Meranti Poplar
Sapele Teak
Utile Walnut
Wenge White Oak
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