WoodwoodSoftwood
Spruce (Sitka)
Exceptional stiffness for its very low weight, which is why it is used for aircraft structures and instrument soundboards. A structural softwood with an unusually high strength-to-weight ratio.
Properties
- Family
- Wood
- Category
- wood
- Species
- Picea sitchensis
- Density
- 0.43 g/cm³ · 430 kg/m³
Applicationswhere spruce (sitka) is normally specified
Aircraft structuresInstrument soundboardsMastsSpars
Practical notes
- Density is for air-dried stock at about 12% moisture content
- Best strength-to-weight of the common softwoods
- Poor decay resistance — protect from moisture