African Walnut

African Walnut is the wood of Lovoa trichilioides, a large hardwood tree of the West and Central African rainforest belt, ranging from Ivory Coast, Ghana, and Nigeria through Cameroon into the Congo Basin. Despite the trade name, it is not a true walnut (Juglans) at all — botanically it belongs to the mahogany family (Meliaceae) and is more closely related to sapele and African mahogany than to the walnuts of the temperate world. The name comes from its color and figure, which superficially recall walnut. It is also widely sold as Lovoa, Dibetou, Congowood, and Tigerwood.

At a glance the timber is a warm golden-yellow to pale bronze-brown, with a fine, even texture, a natural luster, and a shallow interlocked grain that throws a soft ribbon stripe on quartered surfaces. On this sample the grain reads fine and uniform with a slight interlock, and the color is golden-yellow to pale brown — the classic Lovoa presentation. It is a moderately dense, mid-weight cabinet wood valued for its decorative appearance and easy working rather than for hardness or strength.

The heartwood is a golden-yellow to warm bronze or pale walnut-brown, sometimes marked with darker gum streaks or fine black lines that add to its figured, walnut-like character; the sapwood is paler — light tan to pale yellow — and reasonably well demarcated. Freshly cut wood tends toward yellow-gold and mellows to a richer brown on exposure to light. Grain is straight to shallowly interlocked, which produces an attractive, restrained ribbon or stripe figure on radial (quartered) faces. Texture is fine and even with a distinct natural luster.

African Walnut is a moderately dense, medium-weight hardwood, with a Janka hardness of roughly 1,010 lbf — medium, comparable to genuine black walnut and softer than woods like hard maple or oak. It is stable in service and holds detail well without being difficult to cut.

Natural durability is moderate. The heartwood is rated moderately durable, with reasonable resistance to decay but only limited resistance to termites and other insects; the sapwood is liable to attack and is not durable. It is best suited to interior use and protected applications rather than sustained ground contact or exterior exposure without treatment.

African Walnut is primarily a decorative cabinet and joinery timber. Its warm color, figure, and luster make it popular for high-quality furniture, cabinetry, interior paneling, and — very characteristically — as a sliced decorative veneer, where the ribbon stripe of quartered stock shows to best effect. It has long been used for shop and office fitting, doors, and architectural millwork.

Beyond furniture it serves well for turning, carving, and light joinery, and it has seen use in gunstocks, instrument parts, and specialty items where an attractive golden-brown wood is wanted. Its stability and fine texture also make it a good substrate and face veneer in flush doors and panels. It is not a structural or heavy-duty timber, so it is chosen for appearance and workability rather than for load-bearing or outdoor roles.

African Walnut works easily and cleanly with both hand and machine tools, and it is generally kind to cutting edges. The main working caution is the interlocked grain, which can tear out on quartered surfaces during planing and moulding — sharp tooling and a reduced cutting angle (around 15–20°) give the best finish. It turns, bores, and carves well, holds crisp detail, and sands to a smooth surface.

It glues, screws, and nails without much trouble and takes stain and polish very well, finishing to a lustrous surface with little fuss; its fine texture rarely needs heavy grain filling. It also dries fairly readily, though care helps avoid distortion in figured stock.

On safety, African Walnut / Lovoa is reported to cause skin, eye, and respiratory irritation in some workers, and its fine dust can act as a sensitizer, so effective dust extraction, a respirator, and skin and eye protection are advisable when machining or sanding. The species is not listed on CITES.

African Walnut is a moderately available imported hardwood, most commonly encountered as decorative veneer and, less often, as solid lumber in specialist and hardwood outlets. Pricing is generally moderate — more than commodity utility woods but below premium figured cabinet timbers — and clear, well-figured quartered stock commands the highest prices.

The species is not listed under CITES and faces no specific trade restrictions. However, Lovoa trichilioides has been assessed as Vulnerable on the IUCN Red List owing to logging pressure and habitat loss across its range, so responsibly sourced or FSC-certified material is the preferable choice where it can be found. As with many West African hardwoods, buyers who care about sustainability should ask about the chain of custody.