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Okoume (Aucoumea klaineana )
Overview
The heartwood of Okoumé has a light grey pink color, often with a reddish shade. The sapwood is whitish grey and normally easy to distinguish. The wood has no special smell or taste and the lustre is low. Okoumé has a quite regular grain and limited interlocked grain. The texture is medium coarse.
The machining of Okoumé can be done easily. The timber does not tend to split and has a good stability. Even interlocked grain can be planed smoothly with aid of sharp tools. The Silica content in the wood can cause a blunting effect on the tools. Pre-drilling is recommended. Positive experience is available regarding the gluing and finishing. Drying of Okoumé is rather easy, with hardly any defects.
Okoumé is used for interior applications, like window and door frames, doors and cladding. Furthermore, it could be used for fully protected exterior constructions (e.g. protected window frames and cladding). Well-known is the use of Okoumé veneer for plywood, with a good durability for outside use. In Southern Europe sawn timber is used for outside applications like windows and door frames and cladding.
| Species | Okoume (*Aucoumea klaineana ) |
| Origin | Africa |
| Grade | AIC |
| Thickness | 18mm to 300mm |
| Width | 40mm to 300mm |
| Drying | KD, AD |
Prominent Uses |  |
Description & Distribution
Aucoumea klaineana (angouma, gaboon, or okoumé) is a tree in the family Burseraceae, native to equatorial west Africa in Gabon, the Republic of the Congo, and Río Muni. It is a large hardwood tree growing to 30–40 m (100–130 feet) tall, rarely larger, with a trunk 1.0–2.5 m (3.5–8 feet) diameter above the often large basal buttresses. The tree generally grows in small stands, with the roots of the trees intertwined with neighboring trees. In Gabon, it is the primary timber species.
Physical Characteristics
Crushing Strength: 36MPa (+/- 5)
Specific Gravity (at 12% MC): 0.44 g/cm3 (+/- 0.06)
Stability: Moderately stable to poorly stable
Static bending strength: 62MPa (+/- 11)
Durability and resistance
Dry Wood Borers : Class D - Durable
Fungi: Class 4 - Poorly durable
Termites: Class S - Susceptible
Treatability: Class 3 - Poorly permeable
Typical Applications
● Veneer for interior of plywood
● Sliced veneer
● Formwork
● Moulding
● Interior panelling
● Veneer for back or face of plywood
● Blockboard
● Boxes and crates
● Interior joinery
● Current furniture or furniture components
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