Toppers
Robinia
Robinia: The versatile powerhouse among wood types
Robinia pseudoacacia L., better known as Robinia or false acacia, is a tree species originally from North America but now planted worldwide. This versatile type of wood, often mistakenly referred to as 'acacia', has developed into a favorite in the European timber industry, especially for outdoor furniture and sustainable constructions.
Botanical background and distribution
Robinia belongs to the family Leguminosae (Papilionaceae) and is known by different names in various countries:
- Netherlands: Robinia (previously incorrectly 'Acacia')
- Germany: Falsche Akazie, Robinie, Schotendorn
- France: Faux acacia, Robinier
- United Kingdom: False acacia, Robinia
- United States: Black locust
Although originally from North America, Robinia is now planted in Europe, Asia, North Africa, and New Zealand. The wood used in the Netherlands mainly comes from plantations in Hungary dating back to around 1950.
Unique properties of Robinia
Physical characteristics
- Heartwood: Light yellow-green to brown-green, turning golden brown when exposed to light
- Sapwood: 10-20 mm wide, gray-yellow
- Grain: Moderately coarse to coarse
- Texture: Usually straight
- Density: 720-740-800 kg/m³ at 12% moisture content
Durability and resistance
Robinia is known as one of the most durable types of wood in Europe, with a very high resistance to fungi (class 1-2) and insects. The wood is also resistant to termites (class D). This natural durability makes Robinia an excellent choice for garden benches and other outdoor constructions.
Natural durability: 95%
Processing properties
Advantages
- Easy to work with
- Excellent bending properties
- Good adhesion
- Good surface finishing possible
Points of attention
- Slow and careful drying due to tendency to warp
- Pre-drilling recommended for nailing and screwing
- Use of stainless steel fasteners recommended
- Staining can be problematic
Applications of Robinia
Thanks to its unique properties, Robinia is suitable for a wide range of applications, both indoors and outdoors:
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Interestingly, Robinia was used in antique English furniture because it was considered more attractive than satinwood at the time. The color of Robinia deepens with exposure to light and air, contributing to its appealing appearance.
Robinia garden furniture combines durability with a warm, natural look
Sustainability and environmental friendliness
Robinia is not only sustainable in terms of lifespan but also from an environmental perspective:
- Fast-growing species, promoting renewability
- Planted in Europe, reducing transport distances and costs
- Naturally durable, making chemical treatments unnecessary
- Can serve as an alternative to certain tropical hardwoods
Sustainability tip
By choosing Robinia wood from European plantations, you support local forestry and reduce the ecological footprint of your garden furniture and construction projects.
Challenges and limitations
Despite its many advantages, Robinia also has some challenges:
- Limited availability in large dimensions due to the tree's tendency to branch low
- Possible presence of dark veins in wood from older trees, which may limit decorative applications
- High tannin content, causing metals in contact with Robinia to corrode quickly
- In North America, trees are often affected by the Robinia borer beetle, which impacts the quality of the wood
Researchers are working on developing borer-resistant varieties to address this last challenge.
Frequently asked questions about Robinia wood
How does Robinia compare to other sustainable wood types?
Robinia is considered one of the most sustainable types of wood growing in Europe. It can compete in many applications with tropical hardwoods and often surpasses local alternatives such as oak in terms of natural durability and resistance to insects.
Is Robinia suitable for use in contact with concrete?
Although Robinia is very durable, it can slow down the curing process when in contact with cement or concrete. For applications where direct contact between Robinia and fresh concrete is necessary, it is advisable to seek expert advice.
What is the strength class of Robinia?
Robinia from Hungary is classified in strength class D30, making it suitable for many structural applications. This classification confirms the high strength and stiffness of the wood, making it an excellent choice for both garden furniture and construction projects.
Conclusion: Robinia as a sustainable and versatile wood type
Robinia offers a unique combination of durability, strength, and aesthetic qualities. As a locally produced alternative to tropical hardwoods, it represents a sustainable choice for both indoor and outdoor applications. Whether you are looking for sustainable garden benches, robust construction materials, or elegant indoor furniture, Robinia provides a solution that is both functional and environmentally friendly.
By choosing Robinia, you not only invest in quality for your own projects but also contribute to a more sustainable timber sector and local forestry. Explore our range of Robinia products and experience the benefits of this versatile and sustainable wood type for yourself!
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