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Cumaru decking

Hardwood decking species

Cumaru Decking

Dipterix odorata, Southern Chestnut, Brazilian Teak

Our take: we don’t recommend Cumaru for decking

Cumaru (often sold as Brazilian Teak) is genuinely hard and a little cheaper than Ipe — but in our experience it’s prone to checking, warping, cupping and a lot of seasonal movement once it’s in service, which means callbacks and disappointed customers. It’s also CITES Appendix II, so it carries the same export-permit paperwork and supply swings as Ipe without Ipe’s stability or lifespan. For the money we’d steer you to Golden Balau (more stable, better value) or Ipe (the benchmark). We’ll source Cumaru on request, but we won’t pretend it’s our first choice.

We specialize in both unfinished hardwood floors and prefinished flooring. Available width are 3", 4" and 5". Please see our product catalog for more information.

Working & finishing

Rated as difficult to saw or bore. Poor for gluing due to high density and oily nature.

Durability

Rated as very durable, resistant to brown and white-rot fungi, and has exemplary weathering characteristics.

Appearance

Reddish-brown or purplish-brown when fresh, shifting to light-brown to yellowish-brown upon exposure. Sapwood is yellowish-brown. Grain: Interlocked Texture: Fine

Applications

Cogs, flooring, decking, turnery, bearings, tool handles, railroad crossties, heavy construction.