Obeche (Triplochiton scleroxylon)

Obeche (Triplochiton scleroxylon)

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Common Name(s): Obeche

Scientific Name: Triplochiton scleroxylon

Distribution: Tropical West Africa

Tree Size: 65-100 ft (20-30 m) tall, 3-5 ft (1-1.5 m) trunk diameter

Average Dried Weight: 24 lbs/ft3 (380 kg/m3)

Specific Gravity (Basic, 12% MC): .32, .38

Janka Hardness: 430 lbf (1,910 N)

Modulus of Rupture: 8,820 lbf/in2 (60.8 MPa)

Elastic Modulus: 970,000 lbf/in2 (6.69 GPa)

Crushing Strength: 4,250 lbf/in2 (29.3 MPa)

Shrinkage: Radial: 3.1%, Tangential: 5.3%, Volumetric: 8.7%, T/R Ratio: 1.7

Color/Appearance: Heartwood tends to be a pale yellow, with the sapwood not clearly differentiated from the heartwood. Colors darken slightly with age.

Grain/Texture: Grain is interlocked, with a medium to coarse texture and good natural luster.

Endgrain: Diffuse-porous; solitary and radial multiples; very large pores in no specific arrangement, very few; parenchyma vasicentric, diffuse-in-aggregates; narrow to wide rays, spacing normal.

Rot Resistance: Rated as non-durable; poor insect resistance and liable to fungal staining and discoloration if not dried promptly.

Workability: Generally easy to work, though the interlocked grain can cause some rough surfaces in some machining operations. Carves, stains, glues, and finishes well.

Odor: Has a strongly unpleasant odor when green, which mostly disappears once dried.

Allergies/Toxicity: Although severe reactions are quite uncommon, Obeche has been reported as a sensitizer. Usually most common reactions simply include eye, skin, and respiratory irritation, as well as runny nose, sneezing, hives, and asthma-like symptoms. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.

Pricing/Availability: Lumber is sometimes available, though it’s primarily exported as veneer or plywood. Obeche is relatively inexpensive for an imported hardwood. 

Sustainability: This wood species is not listed in the CITES Appendices, and is reported by the IUCN as being a species of least concern.

Common Uses: Veneer, plywood, carvings, furniture, and interior millwork.

Comments: This African hardwood is very soft and lightweight, but has a decent strength-to-weight ratio. It’s fairly stable in service, and its bland grain patterns are frequently stained a darker color.

Related Species:

None available.

Related Articles:

None available.

Scans/Pictures: A special thanks to Steve Earis for providing the wood sample of this wood species.

Obeche (Triplochiton scleroxylon)

Obeche (sanded)

Obeche (sealed)

Obeche (sealed)

Obeche (endgrain)

Obeche (endgrain)

Obeche (endgrain 10x)

Obeche (endgrain 10x)