Cumaru Specs

As one of the world's finest decking materials, Cumaru comes packed with natural qualities. Some of the benefits of Cumaru include not needing any chemical treatment and natural mold, decay, and insect resistance. During the summer, you also can rest easy knowing that your new Cumaru deck dries fast, feels cooler than stone pavers, and is more slip resistant that slippery composite decking.

These factors give you a Cumaru deck with a long life span of over 50 years and is a great return on investment.

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cumaru lumber


Color varies from a golden tan to a reddish brown. Dark grain accents can be present throughout the wood.

Country of Origin

South America

Botanical Name

Dipteryx Odorata

Other Names

Almendrillo, Brazilian Teak, Tonka, and Tonquin Bean

Mechanical Properties

Bending strength of 14,793 psi.
Janka 3540 - Over 6 times stronger than redwood and twice as strong as standard bamboo.

Working Properties

Difficult to saw and bore. Where severely interlocked grain is not present, the wood planes to a smooth surface. Because of its high density and oily nature, the wood glues poorly. It nails and screws well; pre-boring is necessary.


Cumaru is very durable. The heartwood has shown to be very durable in resistance to both brown-rot and white rot fungi. The wood has excellent weathering characteristics.


Cumaru is rated as easy to air-season with a slight tendency to check and with moderate warping; drying was uniformly rapid.


Outdoor Decking, flooring, cogs and shafts, heavy construction, barge and dock fenders, railroad crossties, pulp mill equipment, tool handles, bearings, turnery. A substitute for lignum vitae.


The Cumaru tree is cultivated in many areas for the tonka beans used as a flavoring, which have a vanilla-like flavor.

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