Cumaru Wood Guide 2026
Dipteryx odorata
Typically described as extremely hard durable decking wood
Catalog Price Reference
Unverified catalog note: Decking $3.89-6.34/LF. Ipe alternative at lower cost.
Unverified catalog reference, not a current offer. Supplier price source, quotation date and exact grade/milling basis are not recorded in these pricing fields. A page update is not price verification; freight and tax remain unknown until quoted. Enter a dated quote and build a specification.
Wood Appearance
Natural Grain
Finished Surface
Key Takeaways
- Density: 69 lbs/ft³
- Classification: Hardwood
- Origin: Brazil;Peru
- Catalog price ranges are unverified references, not available offers
- Common uses include Decking, Heavy exterior use, Boardwalks
Quick Facts
Representative reference values — natural wood varies by growing region, moisture content and individual board.
Durability, Stability & Workability
Texture: Medium
Workability: Very hard; interlocked grain can tear out. Pre-drill and use stainless fasteners.
Fastening: Pre-drilling recommended for screws and nails.
Finishing: Penetrating oils recommended; allow acclimation before install.
Color change: Reddish-tan darkens with oil; grays without finish.
Insect resistance: Resistant to termites
Ratings and published values are representative reference figures. Natural wood varies with growing region, moisture content and individual boards — treat them as guidance, not guarantees.
Common Sizes & Availability
Typical market availability for Cumaru. Lumberama is a sourcing marketplace — actual stock, widths and lengths vary by supplier. Request a quote to confirm what's available for your project.
| Thickness | Rough | Typical surfaced | Typical widths | Common lengths | |
|---|---|---|---|---|---|
| 4/4 | 1" | 13/16" (3/4" common) | Decking 4 in. and 6 in.; lumber random widths | Decking 8–20 ft even lengths | Request this size |
| 5/4 | 1-1/4" | 1-1/16" | Decking 4 in. and 6 in.; lumber random widths | Decking 8–20 ft even lengths | Request this size |
| 8/4 | 2" | 1-3/4" | Decking 4 in. and 6 in.; lumber random widths | Decking 8–20 ft even lengths | Request this size |
- 4/4rough 1"
- Surfaced
- 13/16" (3/4" common)
- Widths
- Decking 4 in. and 6 in.; lumber random widths
- Lengths
- Decking 8–20 ft even lengths
- 5/4rough 1-1/4"
- Surfaced
- 1-1/16"
- Widths
- Decking 4 in. and 6 in.; lumber random widths
- Lengths
- Decking 8–20 ft even lengths
- 8/4rough 2"
- Surfaced
- 1-3/4"
- Widths
- Decking 4 in. and 6 in.; lumber random widths
- Lengths
- Decking 8–20 ft even lengths
Decking & exterior profiles
1x4, 1x6, 5/4x4, 5/4x6; 2x4, 2x6, 4x4
Availability notes: Commonly stocked as a lower-cost Ipe alternative. Acclimate on site; more movement than Ipe.
How lumber sizes are described
- Rough (4/4, 8/4…)
- Hardwood thickness in quarters of an inch as sawn, before surfacing. 4/4 = 1" rough.
- Surfaced (S2S/S4S)
- Thickness after planing. 4/4 typically finishes at 13/16" or 3/4".
- Nominal vs. actual
- Construction lumber is sold by nominal size; a 2x6 measures about 1-1/2" x 5-1/2".
- Random width / length
- Most hardwood is sold as it comes from the log — widths and lengths vary within a range rather than being fixed.
Color & Grain
Color: Yellowish to reddish brown
Grain: Straight to interlocked; coarse texture
Common Uses
- Decking
- Heavy exterior use
- Boardwalks
- Flooring
Key Characteristics
Also known as: Brazilian Teak;Tonka
Availability: Supplier confirmation required; this reference is not live inventory.
Advantages
- Janka indentation hardness: 3,540 lbf
- Heartwood decay rating: Very Durable
- Sourced from Brazil;Peru
- Excellent density for wear resistance
Considerations
- Pre-drilling recommended for fasteners
- Hardness does not establish decay resistance or structural design strength
- Compare dated quotes on the same grade, dimensions and milling basis
- Availability may vary
Frequently Asked Questions
Alternatives to Consider
Species commonly specified for similar applications when Cumaru is unavailable or over budget.