HomeMy WebLinkAboutAPPROVED Cumaru Specs submittedCumaru
(BrazilianTeak)
Lumber
Specifications
• Janka Hardness: 3,200 pounds
• Strength (MOR): 24,800 psi
• Stiffness (MOE): 3,050 1000 psi
• Density (KG/m3): 1,080
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•Color: Reddish-brown or purplish-brown when fresh, shifting to light-brown to yellowish-brown upon exposure. Sapwood is
yellowish-brown.
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•Photosensitivity: Cumaru will darken upon exposure to light.
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•Family: Leguminosae
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•Geographic Area: Brazil
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•Texture: Fine
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•Grain: Interlocked
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•Luster: Low to medium
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•Durability Rating: Rated as very durable, resistant to rot and termites, and has exemplary weathering characteristics.
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•Drying Characteristics: Rated as easy to air season, can sometimes check and warp, uniformly rapid drying.
Workability: The wood is 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.
Applications: Flooring, decking, turnery, bearings, tool handles, railroad crossties, heavy construction.
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Fire Rating: Recent test results for Cumaru decking and siding confirm that this beautiful and durable exterior decking and
siding material is a “Class A” Fire rated hardwood building material. Cumaru hardwood met the requirements for a “Class A”
flame spread and smoke according to all the criteria of ASTM E84-10 testing, "Standard Method of Test for Surface Burning
Characteristics of Building Materials”.
Specifications