Cumaru
Appearance: Reddish Chestnut to dark Chestnut color with well defined or golden brown and purplish streaks. Grain is straight to interlocked. Low to medium gloss. Distinctive fragrance.
Characteristics: An extremely heavy wood that shows low linear shrinkage and moderately stable volumetric shrinkage. Mechanical resistance is very high. Difficult to saw due to its hardness and interlocked grain. Air Drying is uniform and quick. Kiln Drying is easy with a mild 10 day drying program. It is resistant to decay, fungi, insect attach, and does not need to be preserved.
Weight: Basic specific gravity (ovendry weight/green volume) ranges from 0.80 to 0.91; air-dry density 62 to 81 pcf.
Janka Rating: 3540
Working Properties: Tungsten Carbide Tools recommended. Pre-drilling is usually required.
Uses: Most used in High Quality Interior and Exterior Flooring and Decking but serves the furniture industry well. Premium Timber for Post and Beam and Industrial construction