Color/Appearance:Heartwood tends to be a medium to dark brown, sometimes with a reddish or purplish hue; some pieces may have streaks of yellowish or greenish brown.
Grain/Texture:Grain is interlocked, with a medium texture and a waxy feel.
Endgrain:Diffuse-porous; solitary and radial multiples; large pores in no specific arrangement, few; heartwood mineral/gum deposits present; parenchyma lozenge, aliform, confluent, and sometimes marginal; narrow rays, spacing fairly close.
Rot Resistance:Cumaru has excellent durability and weathering properties. The wood is rated as very durable regarding decay resistance, with good resistance to termites and other dry-wood borers.
Workability:Tends to be difficult to work on account of its density and interlocked grain. If the grain is not too interlocked, Cumaru can be surface-planed to a smooth finish. However, the wood contains silica and will have a moderate blunting effect on tool cutters. Due to its high oil content and density, Cumaru can presentdifficulties in gluing, and pre-boring is necessary when screwing or nailing the wood.
Odor:Cumaru has a faint, vanilla or cinnamon-like odor when being worked.