Description
Heavy-Duty Performance in a True 5/4×6 Cumaru Profile
The 5/4×6 Cumaru Solid Deck Board (actual approx. 1″ × 5½″) is built for projects where strength, stability, and long-term wear resistance are top priorities. This thicker-than-standard profile provides noticeably greater rigidity across wider spans and delivers a durable walking surface suited to commercial foot traffic, docks, platforms, and elevated decks.
As one of the densest hardwoods available, Cumaru naturally resists rot, decay, insects, moisture, and surface abrasion. Its tight grain structure and warm red-gold color range create a refined, high-performance deck surface that stands up to decades of outdoor exposure.
This solid, non-grooved profile works with a wide range of fastening approaches, including:
- Surface Screw Certified Guide (stainless face-screwing)
- CAMO Edge Hidden Fastening
- DeckMaster Undermount
- Pro Plug System (screw + hardwood plug)
Each method maintains a clean, refined hardwood appearance while ensuring the structural integrity needed for rigorous installation demands.
Premium Cumaru Performance — Kiln-Dried & Hand-Inspected
Brazilian Wood Depot supplies only premium kiln-dried Cumaru, selected for consistent grain quality, stability, and structural soundness. Kiln drying minimizes movement in variable climates, allowing these thicker 5/4×6 boards to maintain a strong, low-movement fit when installed with proper spacing and airflow.
To learn more about Cumaru’s density, weathering behavior, and maintenance considerations, visit the
Cumaru Decking Main Page.
Responsible Forestry & Sustainable Sourcing
All Cumaru offered by Brazilian Wood Depot comes from responsibly managed and legally controlled forest operations. Selective harvesting practices protect natural habitat, support reforestation, and ensure long-term sustainability.
Builders interested in how responsible forestry works—and why Brazilian hardwoods remain one of the most sustainable decking choices—can explore the
Sustainable Ipe Certified Course.
A Stronger Choice for Demanding Applications
Thanks to its increased weight and thickness, 5/4×6 Cumaru offers a more robust, impact-resistant surface well-suited for:
- Commercial walkways & public-use platforms
- Municipal installations & parks
- Docks, piers, and waterfront structures
- Residential decks requiring added load strength
Cumaru’s dense grain and natural oils provide excellent resistance to insects, moisture, and abrasion. When combined with proper ventilation, drainage design, and installation best practices, Cumaru decks are known to last for decades with minimal maintenance. For airflow and cupping prevention guidance, see:
Ipe & Hardwoods: Drainage & Cupping.
Installation Support & Technical Guidance
Brazilian Wood Depot offers certified installation guides for each fastening method, including:
These resources include diagrams, videos, spacing requirements, and step-by-step instructions to ensure long-term stability and a professional finish.
Real Builds, Design Ideas & Customer Inspiration
Explore real-world Cumaru installations for color expectations, layout ideas, and finishing inspiration in the
Cumaru Decking Photo Gallery.
Get An Accurate Quote!
Get a fast, accurate quote on premium Brazilian hardwoods like Ipe, Cumaru, and Tigerwood—delivered nationwide from our Atlanta lumberyard. We’ll review your project details and get back to you quickly with current pricing, shipping options, and expert material guidance.
Bundle & Save with a Complete Deck System
Pair your Cumaru decking with
Heritage Premium Deck Framing
and BWD’s full fastening system selection to maximize lifespan, stability, and structural integrity. These components are engineered specifically for Brazilian hardwood loads and movement patterns.
Nationwide Shipping Excellence
Brazilian Wood Depot provides damage-free nationwide shipping with real-time tracking, pre-shipment photos, and guaranteed delivery protection. Learn more in the
Nationwide Shipping Guide.
Explore, Compare & Learn
Not sure which hardwood is right for your project? Explore personalized recommendations with the
Decking Wizard, or browse the Cumaru gallery for real examples of the species in action.
