Afzelia

Afzelia (Afzelia africana) is a heavy tropical hardwood cut from a large leguminous tree in the family Fabaceae, native to the savanna and dry-forest belt of West and Central Africa. In the trade it is most often sold as Doussie or Apa, and several closely related Afzelia species are marketed under the same names.

At a glance it is a warm, reddish-brown to medium-brown timber with a medium, somewhat coarse texture and characteristically interlocked grain — exactly as seen on our sample. It is dense, very stable in service, and among the most decay-resistant of the commercial African hardwoods, which is why it is favored for demanding flooring and exterior joinery.

The heartwood is reddish-brown to medium brown, often deepening to a richer red-brown as it ages and oxidizes; the sapwood is clearly distinct, pale straw to yellowish-white. Grain is typically interlocked, giving a subtle ribbon or stripe figure on quartersawn faces, and the texture is medium to fairly coarse with a moderate natural luster. A diagnostic feature is the pale yellowish or whitish mineral/resin deposits that fill many of the pores.

Afzelia is a dense wood, roughly 800 kg/m³ air-dry, with a Janka hardness of about 1,810 lbf — firmly in the hard range, comparable to or harder than white oak and well above temperate walnut or cherry. Despite the weight it is exceptionally stable, moving very little once dried.

The heartwood is rated very durable, with strong resistance to decay, fungal attack, and termites, and it also resists many acids, which suits it to laboratory and industrial use. The pale sapwood is not durable and is liable to insect attack.

Afzelia is a workhorse where durability and stability matter. Common uses include flooring (strip, parquet, and heavy-duty industrial floors), exterior and interior joinery, doors and window frames, staircases, and garden and marine work such as decking, sills, and boatbuilding.

It is also used for high-class furniture and cabinetry, heavy structural and bridge timbers, vats and tanks (thanks to its acid resistance), and turnery. Its warm color and stripe figure make it attractive for veneer and feature millwork as well.

Afzelia is workable but demanding. Its density and interlocked grain make it moderately hard on tools with a noticeable blunting effect, and quartersawn faces can tear out during planing and moulding, so sharp, carbide-tipped tooling and reduced cutting angles help. Pre-boring is advised for nailing and screwing.

Gluing can be troublesome: the pale deposits in the pores and the oily, dense surface may interfere with adhesion, so clean, freshly machined surfaces and appropriate adhesives give best results. It finishes to a smooth surface and takes a good polish, though the pore deposits may need filling. Note that the yellow extractives can bleed and stain surrounding materials or leach in wet conditions, and can react with iron to cause dark staining in damp use.

Cautions: Afzelia dust is a recognized irritant and has been reported to cause skin and respiratory irritation and sensitization in some workers, so use dust extraction and a respirator. It is not a CITES-listed species, but standard fine-dust precautions apply.

Afzelia/Doussie is a moderately available imported specialty hardwood, offered as lumber, flooring stock, and veneer through hardwood and decking suppliers rather than general lumberyards. It sits in the mid-to-upper price band for African hardwoods — more than sapele or meranti, reflecting its density and durability, with premiums for wide, clear, quartersawn stock.

Afzelia africana is not listed under CITES, but it is assessed as Vulnerable on the IUCN Red List due to habitat loss and heavy exploitation across its range, so responsibly sourced or FSC-certified material is preferable where available. Because several Afzelia species are traded interchangeably as Doussie/Apa, buyers wanting a specific species or provenance should ask for documentation.