Douglas fir
Denominación científica:
Pseudotsuga menziessi Franco
Procedencia geográfica:
Northamerica (introduced in Europe, Australia, New Zeland)
- Sapwood: Pale shade yellow
- Heartwood: yellowish brown
- Fiber: Straight
- Grain: medium size to rough
- Characteristic defects: thick and adhesive Knots
![Pino oregon Pino oregon](/sites/default/files/styles/large/public/2023-11/803b4b9ad989271fdddbcbade9e015fd.jpg?itok=BD617r5Q)
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![Impregnabilidad](/themes/custom/gabarro/images/icons/impregnabilidad.png)
![Propiedades mecanicas](/themes/custom/gabarro/images/icons/propiedades-mecanicas.png)
![Mecanizacion logo](/themes/custom/gabarro/images/icons/mecanizacion.png)
![Propiedades fisicas logo](/themes/custom/gabarro/images/icons/propiedades-fisicas.png)
Impregnabilidad
- Sapwood: From medium to low capacity of being impregnated
- Heartwood: No capable of being impregnated
Propiedades mecánicas
- Resistance to static flexion 860 kg/cm2 &;8226; Elasticity module 128,000 kg/cm2
- Resistance to compression 525 kg/cm2
- Resistance to parallel traction 930 kg/cm2
Mecanización
- Sawing process: Easy and with no difficulties
- Drying process: Easy. Low risk of crack formation.
- Planing process: Easy and with no difficulties
- Gluing process: Easy
- Nailing and screwing process: No difficulties. Resistance to be pulled away.
- Finish: No difficulties, although a blending agent should be applied in order to homogenize wood
Propiedades físicas
- Apparent density at 12% humidity
- 510 kg/m3 semi-light wood
- Dimensional stability
- - Volumetric contraction coefficient 0,41% stable wood
- - Relation between contractions 1,59% no tendency to deformity
- Hardness (Chaláis-Meudon) 2,45 Semi-softwood
Observaciones
- El color de la albura és molt diferenciat (del groc al vermell)