Bilinga Wood
Experience the unique beauty of Bilinga wood, distinguished by its golden-yellow color and luxurious appearance. This versatile hardwood combines excellent workability with Durability Class 1, making it suitable for a wide range of applications.
From decking and façade cladding to roadworks, hydraulic structures, and park landscaping, Bilinga delivers both strength and elegance—perfect for projects that demand performance and style.
From Decking Planks to Structural Timber
Bilinga wood is a striking hardwood known for its unique golden-yellow color, which gives it a naturally luxurious look. Fresh heartwood ranges from yellow to orange-yellow and gradually deepens into rich orange-red or golden-brown tones. The broad sapwood, pale yellow to white, contrasts beautifully with the heartwood. On quarter-sawn surfaces, the cross-grain reveals a distinctive line pattern that enhances its character.
Renowned for its durability and strength, Bilinga is ideal for road and hydraulic construction projects, including bridges, scaffolding, and railings. It is equally well-suited for park benches, fences, gates, pergolas, and one of its most popular uses: decking boards. Profiles such as the Lotus design, combined with artificial drying, help minimize warping and ensure long-lasting performance.
With its FSC® certification for responsible forest management, Bilinga wood is not only beautiful and versatile but also a sustainable choice for a wide range of outdoor applications.
Characteristics
| Name | Badi |
| Growth area | Tropical West Africa |
| Botanical name | Nauclea diderrichii (De Wild.) Merr. (= Nauclea trillesii, Sarcocephalus diderrichii), Nauclea gilletii (De Wild.) Merr. |
| Durability class | 1 |
| Usage class | 5 |
| Fire class facade cladding | D-s1 d0 (untreated) C-s1 d0 (Forestlines) |
| Strength class | Origin West Africa, grading class HS (BS 5756) is classified in D50 (NEN-EN 1912) |
| Artificially dried | yes, KD |
| Voluminous mass | (660-)750(-900) kg/m3 at 12% moisture content, 900-1150 kg/m3 (moisture content approximately 55%) |
| Suitable for | Building structures, both indoors and outdoors. In hydraulic engineering, for lock gates, barrier structures, weirs, jetties, purlins, bridges and bridge decks. Decking parts and garden wood. |
| To edit | Despite its great hardness, Bilinga can still be machined quite well. |
Editability
Despite its great hardness, Bilinga can still be machined quite well. However, when machine planing, it is important to take the strong cross grain into account. To obtain a smooth surface, it is recommended to work with a small cutting angle. Dried Bilinga wood has a significant dulling effect on saws and chisels, so sharp tools are essential for optimal results. With its sustainability class 1 certification, Bilinga wood offers the right durability. The wood is available in almost any desired size and is certified with the FSC® quality mark.
CE marking
For a few years now, Bilinga wood has been available with a CE marking according to the NEN 5493 standard. This marking is often mandatory for construction timber and confirms that the product complies with the relevant regulations within the European Union. Boogaerdt Hout offers CE-marked Bilinga wood, making it freely tradable within the European economic area. View the CE certificate and discover the reliability of Bilinga wood.
Strength class and quality
When assessing wood types in the Netherlands, the European strength classes according to NEN-EN 338 are used. The strength class is indicated by the letter C for softwood and D for hardwood, followed by a number. This number corresponds to the representative value for the flexural strength parallel to the fiber, an important material property. These values form the starting point for constructors to determine the design value of the material. Bilinga falls within class D50, which corresponds to the highest design values for flexural strength, tensile strength, compressive strength, modulus of elasticity, etc.
Bilinga is divided into three quality classes according to the NEN 5480 standard: A, B and C. Class A places the highest demands on both strength and appearance, including aspects such as thread progression, tassels, cracks and deformations.
The Dutch standard NEN 5493 (formerly NPR 5493) contains eight categories for the use of Bilinga wood in civil engineering works and other structural applications:
- Walking decks/decking components
- Bridge decks and planks for jetties
- Construction wood
- Horizontal handrails
- Studded posts
- Sawn posts
- Round posts
Standards have been established for each category with regard to allowable imperfections, such as heartwood, knots, mechanical damage, cracks, sapwood and deformation over the entire length of the wood. In addition, there are standards for the moisture content and the performance of batch inspections.
Stock
| 150mm (width) | 200mm (width) | 250mm (width) | 280mm (width) | |
|---|---|---|---|---|
| 32mm (thickness) | X | X | ||
| 50mm (thickness) | X | X | X | X |
| 80mm (thickness) | X | X | ||
| 100mm (thickness) | X | X | ||
| 150mm (thickness) | X | |||
| Lotus (decking part) | 25×145mm | 28×190mm | ||
| 4-side + 4 RK (R5) | 25×145mm |
Downloads
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