Decking - FSC Cumaru Pre-Grooved - 21 x 145mm

21 Jul 2017, 8:16 AM

Cumaru is Russet Red to Deep Brown in colour with very distinctive and exotic detail in lighter hues. It is very durable and strong. Cumaru can be left untreated and its natural colours will weather to a silver grey patina.

Product Info

Product FSC CUMARU Decking Boards 21 x 145 mm x 1524 - 3353 mm

Dimensions 21 x 145 mm x 2134 - 4572 mm

Species Cumaru

Condition Kiln-dried

Quality Prime

Surface Finish Machined smooth, uncoated and untreated, end-waxed

Edge Detail Rounded 2 Edges 3 mm radius - Pre-grooved

Type Solid Decking Board

Installation Hidden deck fastener or Screwed ‘top down’ using wood plugs
Stainless steel fixings only
WoodTrend recommends 400mm joist spacing
Structural Deck – BS 8201:1987 – maximum span of joists is 600 mm

Durability Very durable and highly resistant against fungi and termites

Technical Information

Main Species Cumaru (Dipteryx odorata)

Wood Type Tropical Hardwood

Distribution / Origin South America and Central America

Certification 100% FSC Certified

Allergic Reactions Wood dust can cause respiratory and contact dermatitis allergic reactions. Care should be taken when working with wood.

Density at 12% M.C. 1070 kilos/m3

Average Hardness Janka: 3540 (White Oak: 1360)
Brinell: 5.9 (White Oak: 3.8)

1% Moisture Movement High 0.25-0.35% based tangential / radial shrinkage = width

General Characteristics The sapwood is about 50mm wide, distinct from the heartwood and yellowish-brown in colour. The wood has a waxy or oily feel, a fine texture, and irregular and often interlocked grain. It is an extremely hard and heavy wood.

Decking - FSC Cumaru Pre-Grooved - 21 x 145mm