Swiss Wood Solutions

Sonowood: the sustainable and tailor-made wood for music

Sonowood on violin

Sonowood makes your instrument sound better.

For the manufacturing of musical instruments, tropical woods are highly esteemed thanks to high hardness and density, advanced dimensional stability and aesthetic dark coloration. However, excessive and unregulated exploitation has resulted in a rapidly decreasing availability of the material. Increasingly strict governmental regulations, such as CITES, aim to protect the biodiversity. As a result, import and trade of tropical woods are closely controlled and often only allowed with certain certificates.

This is why we have developed Sonowood. Sonowood matches the favourable properties of tropical woods while being a completely legal alternative. In addition to being environmentally friendly, the technology offers adjustability of a wide range of parameters.

Sonowood is the best alternative wood for your musical instrument, made of 100% real AND indigenous wood. Further detailed information is presented on the Sonowood flyer available for download.

Sonowood Flyer

  • Sonowood bears a range of advantages:

  • icon 100% wood

    The real thing

    Sonowood is NOT a composite material, it is fully authentic wood, with straightforward workability.

  • icon acoustics

    Superior acoustics

    High sound velocity, low damping. Fully approved by musicians and instrument makers.

  • icon customizable

    Tunable properties

    No matter if hardness, density or coloration – you choose the properties of your wood.

  • icon biodiversity

    Preserving biodiversity

    Sonowood is manufactured from sustainable European wood species.

  • icon no legal restrictions

    Sonowood does not contain wood species listed on CITES, therefore no trade and import restrictions occur.

How to get Sonowood?

Sonowood is currently available for violin, viola, cello, double bass and guitar parts.
Coming soon: Sonowood for wood winds such as clarinets.

For sales inquiries or technical questions:

Contact us >

The science behind Sonowood

Our unique densifying technology is applicable to any possible native wood species, depending on the individual requirements of the respective product. The use of maple and spruce has been proven already. Current experiments include further wood species.

  • Maple turned into Sonowood
maple Native Maple, before treatment

  • Maple turned into Sonowood
maple Native Maple densified into Sonowood Maple

Types of Sonowood


  • Sonowood Maple

  • Product range:

    • Fingerboards for violin, viola, guitar and cello; as square timbers
    • Tailpieces for violin, viola, cello and double bass
    • Pegs square timbers are provided for violin, viola and cello
    • Chinrest
    • Full set as square timbers
  • Technical data:

    • Sycamore maple (Acer pseudoplatanus)
    • Colour: mocha
    • Density: 1'200 – 1'400 kg/m³
    • Brinell hardness: > 80 N/mm²
    • Dimensional stability: height ~ 0.7,
      width ~ 0.3 % per % moisture content change
    • Sound velocity: > 4'400 m/s
    • Damping (log. decrement): ~ 0.053
    • Dynamic elastic modulus:
      > 23'000 N/mm²
  • Sonowood Maple chinrest Sonowood Maple chinrest close-up

    Sonowood Maple chinrest Sonowood Maple guitar fingerboard

  • Sonowood full set violin Violin with Sonowood Maple fingerboard, chinrest, pegs


  • Sonowood Spruce

  • Product range

    • Fingerboards for violin, viola, guitar and cello; as square timbers
    • Tailpieces for violin, viola, cello and double bass
    • Sonowood spruce on viola. Picture: Wilhelm Geigenbau Sonowood spruce on viola. Picture: Wilhelm Geigenbau.
  • Technical data

    • Made of Spruce (Picea abies)
    • Colour: caramel
    • Density: 1'300 – 1'400 kg/m³
    • Brinell hardness: > 100 N/mm²
    • Dimensional stability: height ~ 0.75,
      width ~0.33 % per % moisture content change
    • Sound velocity: > 5'500 m/s
    • Damping (log. decrement): ~ 0.04
    • Dynamic elastic modulus:
      > 39'000 N/mm²