Log Description

Family Leguminosae (Fabaceae)
Botanical Names Dipteryx alata Vogel
Continent Latin America
CITES (Washington convention of 2017)
No trade Restrictions
Diameter 50 to 90 cm
Thickness of Sapwood 2 – 3 cm
Buoyancy Does not float
Log Conservation Good

Wood Description

Reference colour Sapwood Texture Grain Interlocked grain Notes
Red brown Clearly demarcated Medium Interlocked grain Marked Unpleasant wood odour when green. Heartwood varies from yellow brown to reddish brown with darker thin veins

Flat Sawn

Quarter Sawn

Physical and Mechanical properties

Property Mean Value
Density* 1.07
Monnin hardness* 13.1
Coefficient of volumetric shrinkage 0.73 % per %
Total tangential shrinkage (Ts) 7.7 %
Total Radial shrinkage (Rs) 5.5 %
T/R anisotropy ratio 1.4
Fibre Saturation point 22 %
Thermal conductivity 0.34 W/(m.K.)
Lower heating value 19,760 kJ/kg
Crushing strength* 103 MPa
Static bending strength* 170 MPa
Longitudinal modulus elasticity* 26,610 MPa
* At 12% moisture content, with 1Mpa = 1N/mm2

Natural durability & Treatability

Resistance to decay Class 1 – Very durable
Resistance to dry wood borers Class D – durable (sapwood demarcated, risk limited sapwood)
Resistance to termites Class D – Durable
Treatability Class 4 – non-treatable
Use class covered by natural durability Class 4 - in ground or freshwater contact


This species is listed in the NF EN 350 standard. According to the European standard NF EN 335 of May 2013, performance length might be modified by conditions in which it is used.

Preservation Treatment

Against dry wood borer attacks. This wood does not require any preservation treatment.
In case of temporary humidification This wood does not require any preservation treatment
In case of permanent humidification This wood does not require any preservation treatment

Sawing and Machining

Blunting effect Fairly high
Tooth for sawing Stellite tipped
Machining tools Tungsten carbide
Suitability for peeling Not recommended or without interest
Suitability for slicing good
Notes Sawing and machining are difficult due to hardness and interlocked grain


Drying rate Slow
Risk of distortion Slight risk
Risk of case hardening Yes
Risk of checking High risk
Risk of collapse No known specific risk
Notes Drying must be done slowly. Risks of casehardening with thick material
Suggested drying schedule Schedule # 9


Nailing/ Screwing Good but pre – boring necessary.
Notes Very high specific gravity: important that gluing be performed in compliance with the code of practice and instructions for the glue used.

Cross sections of Dipteryx odorata

Commercial Grading

Sawn timber appearance grading

According to NHLA grading rules (2015) Possible grading: FAS, Select, Common 1, Common 2, Common 3 In French Guiana, the local name of this species is “Gaiac de Cayenne” . Grading is done according to local rules "Bois guyanais classes (1990)". Possible grading: Choice 1, choice 2, choice 3, choice 4

Fire Safety

Conventional French grading Thickness > 14 mm: M3 (moderately inflammable)
Thickness < 14 mm: M4 (easily inflammable)
Euroclass grading D-s2, d0
Default grading for solid wood that meets requirements of European standard NF EN 14081-1 (April 2016): structural graded timber in vertical uses and ceilings with minimal mean density of 0.35 and minimal thickness of 22 mm.

Visual structure grading

According to French standard NF B 52- 001-1 (2011) and associated national standards, strengths classes D40 can be provided by visual grading.

Main End uses

  • Turned goods
  • Heavy carpentar
  • Ship building ( planking and deck )
  • Tool handles (resilient woods )
  • House framing
  • Industrial or heavy flooring
  • Stakes
  • Slices veneer
  • Decking
  • Bridges (parts in contact with water or ground )
  • Poles
  • Cooperage
  • Hydraulic works ( fresh water )
  • Sleepers


Slicing : only with the best shapes timber , to obtain very decorative veneers