Cumaru
Description:
Cumaru is yellowish Brown to a very pale brown with an interlocked texture medium to fine luster
Janka Hardness
2200 pounds-force
Density
540KG/M3 6% Moisture
1280KG/M3 GOS
Gluing Finishes

Ultimate decking material available in two thicknesses

5/4 (1" net) and 4/4" (3/4" net)

4" (3 1/2" net) and 6 (5 1/2" net) width

Also available pre-grooved. We carry posts, joists, post caps etc.

Janka Hardness
Hardness and Durability: Probably the most important strength property for wood used in flooring application it is side hardness, also known as Janka hardness. Side hardness represents the resistance of wood to wear, denting and marring. It is measured by load required to embed a 0.444-inch steel ball to one-half its diameter in the wood. Janka Hardness rating are generally based on an average of test on both tangential and radial ( plainsawn and quartersawn) sample. The test measures the force required to push a steel ball with a diameter of 11.28 millimeters (0.444 inches) into the wood to a depth of half the ball's diameter.