Fir wood is one of the most used today both for interior carpentry and for the manufacture of wood or laminated beams. It is light, light in color and of acceptable quality.
There are more than 50 species of fir trees worldwide. The alpine fir, the white fir (pine) or the balm stand out.
The spruce or false spruce is popularly identified as a type of spruce, but it is not.
It has a certain resemblance to pine wood, in fact, some people often confuse them. Although it is lighter, it is usually lighter and with less marked and less glossy rings.
Here we will focus on the one known as common fir or white fir, whose scientific name is Abies Alba.
Characteristics of white spruce wood
Color: Hard white to reddish brown. The sapwood is slightly lighter and cannot be easily distinguished from the heartwood.
The sapwood is yellowish-white and the heartwood is yellow, reaching reddish tones.
Fiber: In a straight line.
Grain: Good to medium.
Density: Approximately 490 kg / m3. Therefore, fir wood is light.
Toughness: Soft wood, with a score of 2.5 according to the Monnin test.
Durability: Moderate, treatment is recommended. It is susceptible to the action of fungi and insects.
Dimensional stability: It is moderately stable wood.
- Volumetric retraction rate of 0.44%. A little nervous.
- Compressive strength: 418 kg / cmtwo.
- Static flexural strength: 815 kg / cmtwo.
- Modulus of elasticity: 145,800 kg / cmtwo.
Impregnation: Slightly impregnable sapwood, heartwood not impregnable.
- Easy sawing
- Drying. Fast, with high risk of cracks.
- Easy brushing.
- Acceptable bonding.
- It can crack in front of nailing and screwing. Pre-drilling is recommended.
- Irregular finish.
It is an abundant species, with the price of spruce wood relatively low. It must also be taken into account that it is grown for exploitation as a timber species.
Uses of Fir Wood
- Interior assembly carpentry.
- Interior carpentry: moldings, moldings, baseboards …
- Affordable furniture.
- Laminated wood. Both beams and cross laminated panels.
- Decorative plates.
- Musical instruments, mainly strings.
- Boxes and packaging.
- It is the real Christmas tree.