Douglas Fir
Botanical name
Pseudotsuga menziesii
Origin
North America
Other names

Notes
WOOD DESCRIPTION
Color: |
pinkish brown |
Sapwood: |
clearly demarcated |
Texture: |
medium |
Grain: |
straight |
Interlocked grain: |
absent |
Note: |
Heartwood is pinkish brown with veins, the large sapwood is yellowish. Wood may show some resin pockets, sometimes of a great dimension. |
PHYSICAL, MECHANICAL AND ACOUSTIC PROPERTIES
|
(*: at 12% moisture content, with 1 MPa = 1 N/mm²) Musical quality factor: 110,1 measured at 2971 Hz |
NATURAL DURABILITY AND TREATABILITY
Funghi (according to E.N. standards): |
class 3-4 - moderately to poorly durable |
Dry wood borers: |
durable - sapwood demarcated (risk limited to sapwood) |
Termites (according to E.N. standards): |
class S - susceptible |
Treatability (according to E.N. standards): |
class 4 - not permeable |
Use class ensured by natural durability: |
class 3 - not in ground contact, outside |
Species covering the use class 5: |
No |
Note: |
This species is listed in the European standard NF EN 350-2. Use class 3 is only for wood components without sapwood. |
SAWING, MACHINING AND ASSEMBLING
Blunting effect: |
normal |
Sawteeth recommended: |
ordinary or alloy steel |
Cutting tools: |
ordinary |
Peeling: |
good |
Slicing: |
nood |
Note: | Risks of clogging of saw blades and tools due to resin pockets. |
Nailing / screwing: |
good |
Gluing: |
correct |
Note: |
Slightly acid wood: risk of nail or screw corrosion if in contact with humidity. |