Greenheart
Scientific name: Chlorocardium rodiei
Overview
Greenheart is one of South America’s most respected utility hardwoods and has earned a reputation for exceptional strength, durability, and resistance to decay. Native primarily to Guyana, Suriname, French Guiana, and parts of northern Brazil, Greenheart has been used for generations in marine construction, bridges, docks, heavy structural applications, and other demanding environments where long-term performance is critical.
The wood’s outstanding durability in both freshwater and marine settings has made it a preferred choice for harbor works, pilings, lock gates, and waterfront infrastructure throughout the world. Despite its relatively plain appearance compared to some exotic hardwoods, Greenheart is highly valued for its engineering performance and longevity.
Quick Facts
- Common Name: Greenheart
- Scientific Name: Chlorocardium rodiei
- Region: South American Hardwoods
- Tree Size: 100–130 ft tall, 2–4 ft trunk diameter
- Average Dried Weight: 64 lbs/ft³
- Janka Hardness: 2,350 lbf
- Color: Olive green to yellowish brown, darkening to brown with age
- Grain: Straight to slightly interlocked
- Texture: Fine to medium
Identification Characteristics
Greenheart is known for its dense structure and distinctive olive-green coloration when freshly cut. Exposure to light and air gradually transforms the wood into deeper brown shades, though subtle green tones may remain visible in some boards.
Key identification traits include:
- Olive green to yellowish-brown heartwood
- Color darkens with age and exposure
- Dense and heavy feel
- Fine to medium texture
- Straight to slightly interlocked grain
- Excellent natural durability
Working Properties
Greenheart is a strong and durable wood, though its density can make machining more challenging than many other hardwoods.Because of its hardness and density, carbide tooling is often recommended for production work.
- Difficult to machine due to density
- Can dull cutting tools quickly
- Turns and finishes well
- Excellent screw and nail holding ability
- Glues satisfactorily with proper preparation
- Produces smooth finished surfaces
Safety Note
Greenheart dust may cause skin, eye, and respiratory irritation in some individuals. Appropriate dust collection and respiratory protection are recommended when machining or sanding this species.
Common Uses
Greenheart’s durability makes it particularly valuable for heavy-duty and outdoor applications.
- Marine pilings
- Docks and piers
- Bridge construction
- Harbor works
- Lock gates
- Heavy timber structures
- Utility poles
- Railroad ties
- Decking
- Industrial flooring
Sustainability & Notes
Greenheart has long been one of Guyana’s most important commercial timber exports. Responsible forestry management is important because the species grows more slowly than many plantation-grown hardwoods. Sustainable harvesting programs continue to play a significant role in maintaining healthy forest populations while supporting regional economies.
Greenheart remains one of the most trusted woods for marine construction and is frequently specified for projects requiring long service life in harsh environmental conditions.
Comparative Notes & Related Species
Nato – Another exceptionally durable South American hardwood commonly used in demanding structural applications.
Ipe – Similar in durability and outdoor performance, though generally harder and often used for decking.
Massaranduba – A dense tropical hardwood known for strength, wear resistance, and long-term outdoor durability.
Related Guides
Best Woods for Outdoor Use – Learn why highly durable species such as Greenheart are trusted for docks, marine structures, bridges, and other demanding exterior applications.
Understanding Wood Strength: What Makes Wood Strong? – Explore the factors that contribute to wood strength and discover why Greenheart has earned a reputation as one of the most dependable structural hardwoods in the world.
Moisture Content & Long-Term Stability – Understand how moisture affects wood performance and why proper drying and stabilization are important even for exceptionally durable tropical hardwoods.
Compare Wood Properties
See how this species ranks in density and hardness using our Wood Density & Janka Hardness Chart. You can also explore Hardest Woods, Softest Woods, and Most Dense Woods for quick comparisons.
Collector Notes
Greenheart is highly regarded by collectors who focus on utility hardwoods, marine timbers, and historically significant commercial species. While it lacks the dramatic figure of woods such as Snakewood or Morado, its remarkable durability and engineering reputation make it an important addition to a comprehensive wood collection. Specimens displaying fresh olive-green coloration are particularly desirable because the color gradually darkens over time.
Video Overview
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Wood Sample Collection
This species is part of an ongoing effort to document and preserve wood samples from around the world.
Learn more about contributing to the collection:
Resources
Authoritative botanical and forestry references used in compiling information about this species include:
• USDA Forest Service – Wood Handbook: Wood as an Engineering Material
https://www.fpl.fs.usda.gov/products/publications/
• The Wood Database – Global reference for wood identification, physical properties, and woodworking characteristics
https://www.wood-database.com/
• Royal Botanic Gardens, Kew – Plants of the World Online – Botanical taxonomy and species distribution database
https://powo.science.kew.org/
• International Union for Conservation of Nature (IUCN Red List) – Global conservation status assessments
https://www.iucnredlist.org/
• Convention on International Trade in Endangered Species (CITES) – International trade regulations for protected plant species
https://cites.org/
Additional forestry publications, academic research papers, and regional timber studies may also be referenced where available.
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Availability & Where to Buy
Exotic hardwood availability can vary significantly depending on region, sustainability regulations, and supplier inventory.
As this archive grows, recommended suppliers and specialty wood retailers will be listed here to help woodworkers locate responsibly sourced material.
Lumber Suppliers:
Availability varies — see the Where to Buy Exotic Woods page for current sources.
Related Tools & Products:
• Gorilla All Purpose Wood Filler, Natural Finish (16 oz) for filling cracks, holes, gouges, and imperfections before sanding, staining, or painting woodworking projects
https://amzn.to/3R3eCCg
• DEWALT DPG82 Concealer Anti-Fog Safety Goggles for protecting your eyes from sawdust, wood chips, and flying debris during cutting, sanding, and routing
https://amzn.to/4uTlqQZ
• WORKPRO Folding Roller Stand with Adjustable Height for supporting long boards, plywood, and lumber during table saw, miter saw, and woodworking operations
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