Sustainable Wood for Violin Making – Grown in Domestic Forests.

Type of wood: sycamore (Acer pseudoplatanus)
Color: mocha
Density: 1,200 – 1,400 kg/m³
Brinell hardness:  > 80 N/mm²
Dimensional stability: differential swelling tolerance in % per % of moisture content change: height 0.7%, width 0.3%
Sound conduction speed: > 4,200 – 5,400 m/s
Damping (logarithmic decrement): ~ 0.053
Dynamic elasticity module: > 21,000 N/mm²

Type of wood: spruce (Picea abies)
Color: caramel
Density: 1,200 – 1,400 kg/m³
Brinell hardness: > 80 N/mm²
Dimensional stability: differential swelling tolerance in % per % of moisture content change: height 0.75%, width 0.33%
Sound conduction speed: 5,000 - 6,300 m/s 
Damping (logarithmic decrement): ~ 0.04
Dynamic elasticity module: > 30,000 N/mm²

Type of wood: beech (Fagus sylvatica)
Color: dark brown
Density: 1,200 – 1,400 kg/m³
Brinell hardness: > 80 N/mm²
Dimensional stability: differential swelling tolerance in % per % of moisture content change: height 0.7%, width 0.37%
Sound conduction speed: 4,200 – 5,400 m/s
Dynamic elasticity module: > 21,000 N/mm²

Density: 1'200 – 1'400 kg/m³
Brinell hardness: ~ 84 N/mm²
Sound conduction speed: ~ 4'500 m/s