FSC® Okan is available in the forests of Precious Woods, located in the Congo Basin of Gabon. The tree attains heights up to 40 – 50 m and diameters approximately 150cm (max 300cm). The trunks are straight and cylindrical.
Freshly sawn Okan has a yellow to golden yellow color, with (dark) green/olive green shade. After exposure, the wood darkens to red brown, often with a coppery glow. As a result of the dark colored edges, the growth rings can be clearly seen on the crosscut surface. The 50-75 mm thick sapwood is light pink and is easy to distinguish. The unpleasant smell of Okan disappears after drying. The wood structure is interlocked and the texture is medium coarse.
The machining of Okan can not be done so easily, because the high density. Furthermore, the wood causes a blunting effect of the tools. Pre-drilling is necessary. The gluing is difficult and finishing is possible. It dries very slowly, with risks of cracking.
Thanks to its durability, Okan is used in all kind of hydraulic constructions, like bridges, decking’s, sheet pilings, jetties, sound barriers, stables and piles.