Douglas Fir
Pseudotsuga menziesii
SoftwoodNorth America: Pacific Northwest; also New Zealand plantations
Also known as: Oregon, Oregon Pine
Appearance
Douglas Fir heartwood is light reddish-brown to yellowish, with a distinctive straight grain and medium to coarse texture. Growth rings are prominent, giving the timber a clear visual character. It is strong for its weight and has been used extensively in structural applications worldwide.
Workability
Douglas Fir machines well and produces a clean surface. It takes finishes adequately, though the pronounced grain pattern can telegraph through paint. It has excellent structural properties relative to its weight, making it a favoured choice for engineered timber products.
Common Uses
✓Structural beams and columns
✓Floor joists and rafters
✓Marine construction
✓Plywood manufacture
✓Laminated products
✓Post and beam construction
✓Interior panelling
Typical Colour
Density
530 kg/m³
Janka Hardness3 kN
SoftHard
Above GroundModerate
In GroundLow
Not termite resistant