Curupay Wood Guide 2026
Anadenanthera colubrina
Typically described as dense streaked South American hardwood
Wood Appearance
Natural Grain
Finished Surface
Key Takeaways
- Density: 70 lbs/ft³
- Classification: Hardwood
- Origin: Argentina;Paraguay
- Common uses include Flooring, Heavy furniture, Exterior millwork
Quick Facts
Representative reference values — natural wood varies by growing region, moisture content and individual board.
Durability, Stability & Workability
Texture: Fine to medium, uniform texture.
Workability: Difficult to work due to extreme density.
Fastening: Pre-drilling recommended for screws and nails.
Finishing: Polishes to a high natural luster.
Color change: Deepens to a darker reddish-brown when exposed to sunlight.
Insect resistance: Very high resistance to decay and 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 Curupay. 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) | Standard flooring and decking widths. | Random lengths 6 to 12 feet. | Request this size |
- 4/4rough 1"
- Surfaced
- 13/16" (3/4" common)
- Widths
- Standard flooring and decking widths.
- Lengths
- Random lengths 6 to 12 feet.
Decking & exterior profiles
Grooved and square-edge decking profiles.
Availability notes: Imported specialist product with limited distribution.
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: Brown to reddish with dark streaks
Grain: Straight to interlocked; medium texture
Common Uses
- Flooring
- Heavy furniture
- Exterior millwork
Key Characteristics
Also known as: Cebil;Patagonian Rosewood
Availability: In Stock
Advantages
- Janka indentation hardness: 3,140 lbf
- Heartwood decay rating: Very Durable
- Sourced from Argentina;Paraguay
- Excellent density for wear resistance
Considerations
- Pre-drilling recommended for fasteners
- Hardness does not establish decay resistance or structural design strength
- Availability may vary
Frequently Asked Questions
Alternatives to Consider
Species commonly specified for similar applications when Curupay is unavailable or over budget.
Related Species
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