Tigerwood

Goncalo Alves (Astronium fraxinifolium)

Tigerwood is also commonly referred to as Brazilian Koa, Goncalo Alves, Muiracatiara or Jobillo.

Typical Specifications

average dried weight:   57 pounds per cubic foot
janka hardness:   2,170 pounds-force
modulus of rupture:   16,970 pounds-force per square inch
elastic modulus:   2,401,000 pounds-force per square inch
crushing strength:   10,770 pounds-force per square inch

Color and Durability

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Heartwood is typically a medium reddish brown with irregularly spaced streaks of dark brown to black. Color tends to darken with age.

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Goncalo Alves has excellent weathering properties, and is rated as very durable regarding decay resistance. It is 5.4 times harder than Pine.