Beng is Another of Cambodia's Endangered Rosewood
Beng is a Cambodian endangered rosewood. Learn why it is CITES-listed, protected by law, and why we refuse to sell new stock.
WOOD TYPES
Beng: Cambodia's Vanishing Rosewood Story
In the coffee shops and guesthouses of Stung Treng, Kratie and Ratanakiri, you will see them. Heavy chairs and tables polished to a high gleam, in colours ranging from honey to deep brick red. They are made from Beng wood, and local furniture makers will tell you the same thing: Cambodian customers prefer it above almost any other wood. "It has a lighter, nicer colour," one Kratie craftsman explained. "It looks good in a house." Wealthy Cambodians from Phnom Penh commission beds and cabinets in Beng, paying $600 to $800 for a single piece. And yet the harvest of this wood is illegal. Beng is endangered, protected by Cambodian law, and almost gone from the wild. This article explains what Beng is, why it matters, and why Khmer Wood Design does not sell new stock.
What Is Beng Wood?
Beng is the Khmer name for Afzelia xylocarpa, known internationally as Afzelia xylay, Xylay Lace, or Makamong. In Thailand it is called Makha. It is a large deciduous tree in the legume family, growing 15 to 30 metres tall with a broad crown and a trunk diameter of up to 1.5 metres. It grows across Cambodia, Laos, Thailand, Vietnam and Myanmar on well-drained clayey or lateritic soils at elevations of 100 to 600 metres. It is a light-demanding species, found in transitional zones between evergreen and dry open dipterocarp forest, usually scattered rather than in pure stands.
The heartwood is reddish brown, sometimes with a lighter, more golden tone that Cambodians prefer. The sapwood is a pale yellowish white, sharply defined. The grain is interlocked with a uniform medium to coarse texture and a natural lustre. Pieces containing pommele or blistered figure are sometimes sold as Afzelia Xylay — a lace-like pattern reminiscent of tunnels forged within an ant colony. Burls are also common and command high prices. The wood darkens with age. In Cambodia, Beng is classified in the luxury class of timber species, alongside Neang Nuon and Kra Nhuong.
The Numbers Behind Beng RoseWood
Beng has a Janka hardness of 1,980 lbf, which is 8,820 Newtons. Its average dried weight is 825 kilograms per cubic metre. Its modulus of rupture, which measures bending strength, is 118.7 MPa. Its modulus of elasticity is 13.37 GPa. Its crushing strength is 68.7 MPa. It shrinks approximately 2.3 percent radially and 3.9 percent tangentially as it dries, giving a volumetric shrinkage of 6.3 percent and a tangential-to-radial ratio of about 1.7.
For a furniture buyer, these numbers describe a timber that is hard, heavy, and stable. A Janka hardness of 1,980 lbf places it above teak at 1,155 lbf and nearly double black walnut at 1,010 lbf. At 825 kilograms per cubic metre, it is dense enough to feel substantial without being impractically heavy. The low shrinkage figures and the T/R ratio of 1.7 — lower than many rosewoods — mean it moves predictably once dried rather than twisting or warping. The Wood Database notes that Afzelia species have "very good dimensional stability and, after initial drying, experience little warpage." This is wood that behaves well in Cambodia's humidity, provided it is properly dried and sealed.
Sourcing and Conservation of Rare Woods in Cambodia
Beng is classified as Endangered on the IUCN Red List, with a decreasing population trend. It is listed on CITES Appendix II, which means its international trade is strictly controlled. In Cambodia, it is protected under Forestry Law No. 35, and the harvest and sale of rare timber species is completely illegal. In 2002, the second meeting on the Forest Gene Conservation Strategy defined Afzelia xylocarpa as a priority species in need of immediate protection and conservation.
The illegal trade has continued regardless. A Khmer Times investigation found Beng furniture openly displayed and sold across Preah Vihear, Ratanakiri and Kratie. One coffee shop owner in Stung Treng was selling a Beng table for $1,700. A furniture maker near Kratie sold beds and cabinets for $600 to $800 each, sourcing his timber from Ratanakiri. "There's not much left, though," he said. "There's not much wood left in Cambodia at all." The Forestry Administration confirmed that small businesses are rarely fined, and the trade continues largely unchecked.
It is important to understand that Beng is not alone in this. Traditional local furniture in Cambodia is largely manufactured from Beng and Thnong, both of which are harvested illegally. The two species are often mentioned together, and both are endangered. If you are offered either, you should be deeply sceptical of its provenance.
Is Beng Good for Wooden Furniture?
Technically, it is excellent. It is hard, dense, stable, and durable. It is rated as very durable and moderately resistant to termites. It was historically prized for high-end furniture, cabinetwork, parquet flooring, interior finish, wood carving, musical instruments, and decorative woodturning. In Cambodia, it was planted as a shading tree because of its wide-ranging branches. The wood is considered one of the finest in the region for high-grade furniture.
But its quality is precisely the problem. The very characteristics that make Beng desirable made it a target for illegal logging. A tree that takes decades to reach maturity cannot survive a market that wants it immediately. The species is now scattered and rare, and mature trees are difficult to find even for seed collection. Owning a genuine piece of Beng is not a commodity purchase. It is a responsibility.
There is also a practical warning. Beng is considered somewhat difficult to work because of its interlocked grain, which causes tearout during machining. The wood has a pronounced dulling effect on cutters. It requires sharp tooling and careful technique. And like all Afzelia species, it has been reported to cause skin, eye and respiratory irritation, as well as sneezing, in some individuals. If you are working with it, wear protection. If you own a piece, keep the surface sealed.
How Beng Compares To Other Popular Wood
If you are looking for a dark, dense hardwood for a statement piece, there are sustainable alternatives that deliver similar qualities without the ethical burden.
Thnong (Burma Padauk) is the closest available substitute. It is a rosewood-adjacent species with a rich reddish-brown heartwood, good density, and excellent durability. It is also endangered and its harvest is illegal, so the same cautions apply. It is not a solution — it is another problem.
Teak is the standard against which tropical hardwoods are measured. It is naturally oily, resistant to insects and moisture, and stable in service. It is more expensive than Thnong but widely available from plantations. For outdoor furniture or pieces that will see heavy use, teak is the better choice. Beng is harder, but teak is more practical and genuinely sustainable.
Rubberwood is plantation-grown, widely available, and genuinely sustainable. It is not as hard or as dark as Beng, but it is stable, workable, and takes a finish that can evoke warmer tones without the ethical cost. For buyers who want a beautiful piece without contributing to the destruction of an endangered species, rubberwood is an honest alternative.
None of these woods match Beng's combination of hardness, colour, and figure. That is precisely why Beng should be left alone.
How We Work With Beng
Khmer Wood Design does not sell new Beng. We do not buy it. We do not accept commissions that require it. If a customer asks for it, we explain why we will not work with it and offer sustainable alternatives.
The only exception is reclaimed timber from pre-owned furniture or heritage pieces where the provenance is documented. If a client owns an antique Beng piece that is being restored, we can work with that existing timber. We require proof of origin, such as old receipts, family records, or photographs of the piece in its previous setting. If the provenance is unclear, we decline the work.
We refuse to work with undocumented timber because there is no way to know whether it was legally harvested. The illegal rosewood trade has fuelled corruption and environmental destruction across the region. A workshop that claims not to know where its timber came from is either lying or negligent. Our green policy commits us to reclaimed wood wherever the piece allows it, and to honesty about what we cannot source responsibly.
Care and Maintenance Of Valuable and Rare Wood
If you own a genuine Beng piece, whether an antique, a family heirloom, or a documented original, treat it with the care it deserves. The wood is dense and stable, but old pieces may have developed cracks or joint failures over decades of use. Do not attempt to repair them yourself. Professional restoration is essential for heritage pieces of this value. Clean only with a soft, dry cloth. Avoid all moisture, direct sunlight, and household cleaners. If the finish is worn, consult a specialist restorer who understands dense tropical hardwoods.
One specific warning: Beng has been reported to cause skin, eye and respiratory irritation in some individuals, as well as sneezing. Although these reports primarily concern African Afzelia species, it is strongly presumed that the Asian species produce similar reactions. If you are working with the wood, or if you own a piece and notice a reaction, take it seriously. Wear gloves when handling raw timber, and keep the finished surface sealed.
Sustainable Alternatives
If you want a piece that captures the spirit of Beng — warm, rich, durable, and beautiful — without contributing to the destruction of an endangered species, we can help. We work with Thnong, Teak, and reclaimed Cambodian hardwoods. We can finish them to evoke the deep tones of Beng without the ethical cost. The result will be a piece you can be proud of for reasons that go beyond its beauty.
FAQs
Can I buy new Beng? No. It is Endangered, CITES Appendix II listed, and protected under Cambodian Forestry Law No. 35. The harvest and sale of rare timber species is completely illegal. If someone offers you new Beng, the timber is almost certainly illegal.
How do I know if a piece is genuine? Provenance is everything. Look for documented history, such as old photographs, receipts, family records, or CITES paperwork where applicable. Without documentation, you cannot know whether a piece is genuine or whether it was legally acquired.
What is the difference between Beng and Thnong? They are different species. Beng is Afzelia xylocarpa, known for its lighter, more golden-red colour. Thnong is Pterocarpus macrocarpus, a darker reddish-brown rosewood-adjacent species. Both are endangered, both are harvested illegally, and both are protected. They are often mentioned together in the illegal timber trade.
Is it legal to own an antique Beng piece? Ownership of pre-existing pieces is generally legal, but the burden of proof is on the owner. If you cannot demonstrate that the piece predates the trade restrictions, you may face questions. Document everything.
What is a sustainable alternative? Teak is excellent for outdoor use and widely available from plantations. Rubberwood is plantation-grown, sustainable, and workable. Reclaimed timber from documented sources is also an option, though increasingly rare. Contact us to discuss which wood suits your project.