Log Description

Family Moraceae
Botanical Names Bagassa guianensis.
Continent Latin America
CITES (Washington convention of 2017)
No trade Restrictions
Diameter 50 to 90 cm
Thickness of Sapwood 2 – 4 cm
Buoyancy Does not float
Log Conservation Good

Wood Description

Reference colour Sapwood Texture Grain Interlocked grain Notes
Yellow brown Clearly demarcated Medium Interlocked grain Marked When freshly cut, heartwood is yellow. It becomes yellow brown to dark brown with age

Flat Sawn

Quarter Sawn

Physical and Mechanical properties

Property Mean Value
Density* 0.80
Monnin hardness* 6.4
Coefficient of volumetric shrinkage 0.53 % per %
Total tangential shrinkage (Ts) 5.2 %
Total Radial shrinkage (Rs) 3.7 %
T/R anisotropy ratio 1.4
Fibre Saturation point 20 %
Thermal conductivity 0.26 W/(m.K.)
Lower heating value 19, 180 kJ/kg
Crushing strength* 78 MPa
Static bending strength* 109 MPa
Longitudinal modulus elasticity* 21, 490 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 3 – poorly treatable
Use class covered by natural durability Class 4 –in ground or fresh water contact


This species is listed in the NF EN 350 standard. This species naturally covers the use class 5 (wood permanently or regularly submerged in salt water, sea water, brackish water) due to its high silica content. According to the European standard NF EN 335 of May 2013, performance length might be modified 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 Sawdust is an irritant. Presence of internal stresses


Drying rate Normal to slow
Risk of distortion Slight risk
Risk of case hardening No known specific risk
Risk of checking Slight risk
Risk of collapse No known specific risk
Notes High risk of distortion in case of highly interlocked grain. During drying, spacer sticks may stain the wood.
Suggested drying schedule Schedule # 6


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

Cross sections of Buchenavia fanshawei

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 "Baggase ". Grading is done according to local rules "Bois guyanais classés". Possible grading: Choice 1, choice2, 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.

Main End uses

  • Turned goods
  • Heavy carpentary
  • Ship building (planking and deck)
  • Cabinetry (high- en furniture )
  • Stairs (inside)
  • Vehicle or container flooring
  • Panelling
  • Exterior joinery
  • Interior joinery
  • Flooring
  • Sliced Veneer
  • House framing
  • Moulding
  • Sleepers


Interlocked grain may be troublesome in the use of this wood