Cumaru wood is a quality wood, very difficult, especially suitable for outdoors, where it competes with others like Ipé. It is also similar to elondo.
It is native to the American continent, more specifically to Central America and northern South America. Its scientific name is Dipterix spp. It is commonly called Brazilian teak, although it has nothing to do with teak wood.
It is an abundant wood, so its price, when compared with similar ones like Ipé, is not high.
Characteristics of Cumarú wood
ColorHeartwood tends to be medium to dark brown, sometimes with a reddish or purplish hue; some pieces may have yellowish or greenish brown streaks.
Fiber: Usually straight, although sometimes interlaced.
Density: It is a very dense wood. Approximately 1,020 kg / m³ at 12% humidity.
Toughness: 11.0 according to the Chaláis-Meudon test, very hard wood.
Durability: Great outdoor performance and durability. Very resistant to rot, although it can be attacked by some insects.
- Volumetric contraction coefficient 0.49% nervous wood.
- Relationship between contractions 1.4% without tendency to deform.
- Resistance to static bending 1,780 kg / cm².
- Elasticity module 220,000 kg / cm².
- Resistance to parallel compression 680 kg / cm².
Workability. Robustness adds complexity to the job. Accelerates tool wear. Its hardness makes manual work difficult.
- Complex sawdust due to its hardness.
- Slow drying with risk of cracks, foundations and even deformations.
- Difficult brushing. Risk of repulsion in cases of interlaced fiber.
- Troublesome bonding due to the abundance of tannins.
- Nailing and screwing requires pre-drilling.
- Finish: due to repellency, good sanding is required.
Odor: It has a slight smell of cinnamon and vanilla when worked.
Toxicity: No known risks.
Cumaru wood is very versatile and its uses are abundant. Only those that require a certain lightness are excluded.
- External floors or decks.
- Outside carpentry: doors, windows.
- Interior carpentry: frames, baseboards, coverings …