Materials Guide
8 Reasons to Use Cumaru on Your Deck or Outdoor Living Project
Cumaru — also known as Brazilian Teak — is one of the most durable and beautiful hardwoods available for outdoor decking. It is often considered alongside Ipe, and for good reason: Cumaru shares many of Ipe's performance characteristics at a slightly different price point and with a distinct visual character. Here are eight reasons to consider Cumaru for your next deck or outdoor living project.
Exceptional Hardness and Durability
Cumaru is one of the hardest commercially available decking species. Its density makes it highly resistant to denting, scratching, and wear — important qualities for high-traffic decks, pool surrounds, and commercial applications.
Natural Rot and Insect Resistance
Like Ipe, Cumaru has natural oils that make it resistant to rot, decay, and insect damage without chemical treatment. This is a significant advantage in South Florida's humid, insect-active environment.
Fire Resistance
Cumaru has a Class A fire rating — the highest available — making it appropriate for applications where fire resistance is a consideration, including commercial properties and areas near outdoor kitchens.
Rich, Warm Colour
Cumaru has a warm, reddish-brown to golden-brown colour with subtle grain variation. It has a slightly warmer tone than Ipe, which some homeowners prefer. Like Ipe, it weathers to a silver-grey if left untreated, or maintains its colour with periodic oiling.
Long Service Life
Properly maintained Cumaru decks can last for decades in South Florida's climate. Its density and natural oils give it a service life comparable to Ipe — significantly longer than pressure-treated pine or most composite products.
Versatility of Application
Cumaru works well for decking, dock surfaces, pergola components, cladding, and outdoor furniture. Its hardness and stability make it suitable for a wide range of outdoor applications beyond flat decking.
Sustainable Sourcing Options
Cumaru is available from suppliers with FSC certification and responsible forestry practices. For clients who prioritise sustainable sourcing, Cumaru can be specified with appropriate chain-of-custody documentation.
A Proven Alternative to Ipe
Cumaru is often the first alternative considered when Ipe is unavailable in a specific dimension or grade. The two species are closely matched in performance, and experienced builders are comfortable working with both. For clients who want the performance of a Brazilian hardwood with a slightly different aesthetic, Cumaru is an excellent choice.