Scientific name

Picea abies Karst

Other names

English: Red fir

Geographic origin

Center, South and North of Europe

Description

&;8226; Sapwood: Yellowish white
&;8226; Heartwood: Reddish yellow
&;8226; Fiber: Right
&;8226; Grain: from medium size to small
&;8226; Characteristic defects: it has a large number of small, healthy and lively Knots

Capacity of being impregnated

&;8226; Sapwood: Low capacity of being impregnated
&;8226; Heartwood: No capable of being impregnated

Mechanization

&;8226; Sawing process: Easy and with no difficulties
&;8226; Drying process: Fast, with risk to crack formation.
&;8226; Planing process: No difficulties
&;8226; Gluing process: Good
&;8226; Nailing and screwing process: Tendency to crack formation. Little resistance to be pulled away
&;8226; Finish: Uneven dyeing.

Physical properties

&;8226; Apparent density at 12% humidity
450 kg/m3 light wood
&;8226; Dimensional stability
- Volumetric contraction coefficient 0.44 % stable wood
- Relation between contractions 2.1% bending tendency
&;8226; Hardness (Chaláis-Meudon) 1.5 Softwood

Mechanical properties

&;8226; Resistance to static flexion: 710 kg/cm2
&;8226; Elasticity module: 110,000 kg/cm2
&;8226; Resistance to compression: 450 kg/cm2

Observations

&;8226; Slow-growth wood
&;8226; It is called ''Flanders'' in certain places of Spain.