wood species


Origin: Gabon.

Latin name.
Entandrophragma cylindricum Sprague.

Natural vegetation area.
Humid forests and neighbouring savannahs of the tropical-equatorial area extending from Liberia to the Central African Republic and to the Congo and Angola Basins as well as, in the Eastern part, towards Uganda.

The tree reaches a big size, sometimes up to 50 m height; the trunk is generally straight and regular with relatively small diameters above the basal buttresses, up to 2 m. Frequent ring shakes and strong internal stresses.

The sapwood is rosy with tones that are sometimes greyish, sometimes yellowish; the clearly different heartwood is reddish when it is fresh, then becoming dark red with seasoning; radial surfaces look particularly shiny. In the fresh condition, it emanates a pleasant smell.

Specific weight.
In the fresh condition 900 kg/m³ on average, after normal seasoning 690 kg/m³.

Histological structure.
Texture from fine to medium; rarely straight grain, more often irregular, so that it produces pleasant patterns in polished surfaces.

From moderate to medium.

Mechanical characteristics.
Axial compression strength 60 N/mm² on average; bending strength 140 N/mm²; medium hardness. The impact behaviour is low.

Modulus of elasticity.
1,500 N/mm2

Most frequent structural defects and alteration.
It can feature some real defects, i.e. , as mentioned, ring shake and internal stresses, which cause the small cross fractures characteristic of its brittle heart; on the other hand, the grain irregularity - although it is a structural defect - is a quality from an aesthetic point of view for the pleasant patterns that it can create.

Poor for the sapwood; good for the heartwood.


Texts taken from: “Manuale tecnico del legno”, FNALA CNA LEGNO LEGNO, by Prof. Ing. Guglielmo Giordano.


Species available for the following products: