Tigerwood – Hardwood lumber products

Tigerwood - Hardwood lumber products

Tigerwood –(Astronium Graveolens )

rough sawn tigerwood blanks
Better known on the international market as Muiracatiara or Goncalo Alves, but does have lesser known names such as Brazilian Koa or Jabillo. It cuts easy for being a dense species and has very good resistance to rot and decay. The heartwood is light brown in color with moderate to wild black streaking. Due to the color variation, there is a particular allure to furniture builders, although its uses in decking and flooring are not new. Available as both FSC and Non-FSC certified Tigerwood is kiln-dried (KD) and available as decking, flooring, dimensional lumber, E4E, S4S, RS (Rough Sawn), deck tiles, and table slabs.

Common Name:

Goncalo Alves, Tigerwood, Jobillo

Botanical Name:

Astronium spp. (A. graveolens and A. fraxinifolium)

Indigenous to:

From Mexico southward to Brazil

Modulus of Rupture:

16,970 lbf/in2 (117.0 MPa)


Radial: 4.2%, Tangential: 7.8%, Volumetric: 11.2%, T/R Ratio: 1.9

How is it dried:

kiln-dried (KD)

Is it dried quickly:

Normal Drying Schedule is applicable to thickness lower or equal to 38 mm.
It must be used in compliance with the code of practice.
For thickness from 38 to 75 mm, the air relative humidity should be increased by 5 % at each step.
For thickness over 75 mm, a 10 % increase should be considered


Info coming soon

Exterior Wood Recommendation:

Class 4 – in ground or fresh water contact

Fastening Method:

Nailing / screwing: good but pre-drilling is necessary
Gluing: poor not recommended without proper oily wood procedures

Ecosystem impact:

This wood species is not listed in the CITES Appendices or on the IUCN Red List of Threatened Species.

Toxicity and allergic reactions:

Although severe reactions are quite uncommon, Goncalo Alves has been reported as a sensitizer. Usually most common reactions simply include eye and skin irritation.


No distinguishable odor

Product we manufacture using this species:

Decking, hardwood flooring, dimensional lumber, E4E, S4S, RS (Rough Sawn), deck tiles, and wood slabs

Other common uses:

Sliced veneer
Turned goods
Exterior joinery
Interior joinery
Interior panelling
Heavy carpentry
Musical instruments
Tool handles (resilient woods)

Susceptibility to

Dry Wood borers:

Durable – sapwood demarcated (risk limited to sapwood)


Class 1 – very durable


Class D – durable


Class 4 – not permeable

Against dry wood borer attacks: does not require any preservative treatment
In case of risk of temporary humidification: does not require any preservative treatment
In case of risk of permanent humidification: does not require any preservative treatment

Janka Hardness:

  • 2160 lbf (17,500 N)
Tigerwood – Hardwood lumber products was last modified: by