Ekki (Azobe): The Marine Titan of West African Hardwoods

Among the world’s most durable timbers, few woods have earned the legendary status of Ekki, also known as Azobe(Lophira alata). This tropical hardwood is prized for its strength, density, and rich appearance, making it a popular choice in various industries. Native to the dense tropical forests of West Africa, Ekki is a material prized for its incredible strength, longevity, and resistance to some of the harshest environmental conditions nature can offer.

A Giant of the Forest

Ekki trees are impressive in scale, typically reaching 100-150 feet (30-46 m) in height with massive 5-6 foot (1.5-1.8 m) trunk diameters. This substantial size contributes to the lumber’s uniformity and structural reliability- qualities long recognized in heavy-duty construction and marine engineering.

Practical Applications in Modern Design

Where toughness, longevity, and resistance to moisture are required, Ekki is often in a class of its own. Ekki is widely recognized for its exceptional durability and resistance to wear. These qualities make it ideal for a range of uses, from heavy construction to fine woodworking. Here are some of the most common applications:

• Bridges and heavy structural supports: Its strength supports structural applications such as beams, posts, and railroad ties.

• Boatbuilding and ship components: The wood’s density and water resistance make it suitable for marine environments.

• Marine piles and docks: Resistant to both sweet and saltwater. One of the best choices for its supreme durability.

• Decking: Suitable for both residential and commercial decking. Exceptional choice for the merinas.

• Industrial flooring: High traffic, zero maintenance, exceptional durability.

  
  

Its versatility is a key reason why it remains a favorite among builders and craftsmen alike.

Ekki logs in the yard

Unmatched Strength and Density

Once dried, Ekki has an average density of 66 lbs/ft³ (1,065 kg/m³)—heavier than many well-known tropical hardwoods. Its specific gravity (1.06 at 12% MC) makes it one of the few woods dense enough to sink in water.

Measured mechanically, Ekki shows exceptional performance*:

• Janka Hardness: 3,220 lbf

• Modulus of Rupture: 28,390 lbf/in²

• Elastic Modulus: 2.75 million lbf/in²

• Crushing Strength: 13,890 lbf/in²

These values reflect a wood capable of sustaining extreme stress, impact, and long-term wear. It’s no wonder Ekki is a top choice for heavy construction and marine infrastructure.

*(source: The Wood Database- https://www.wood-database.com/ekki/)

Applications that last

Elegant, durable, long lasting.

Color, Texture, and Grain

Ekki’s heartwood ranges from deep reddish-brown to violet-brown, often streaked with light-colored mineral deposits that create small but distinct specks throughout the grain—an identifying characteristic of the species.

The sapwood, in contrast, appears pale pinkish white, separated from the heartwood by a gradual transition zone.

The wood’s interlocked grain and coarse texture give Ekki its rugged appearance but also contribute to its challenging workability.

Ekki offers exceptional durability in harsh weather

Durability Built for the Elements

Ekki is renowned for its exceptional durability, earning high marks for resistance to:

• Decay and rot

• Marine borers

• Termites and other insects

• Harsh weathering

Few woods outperform Ekki in marine environments, where constant exposure to moisture, salt, and biological organisms destroys lesser materials. Its high density and natural oils give it outstanding longevity in water-contact applications.

Challenges in Workability

Working Ekki can test even the most seasoned woodworkers and shipwrights. Its density and interlocked grain often lead to:

• Tearout

• Rapid dulling of cutting tools

• Difficulties in gluing, due to natural oils and density

Sharp, carbide tools and slow, deliberate machining are essential. Despite these challenges, many craftsmen consider the effort worthwhile given the wood’s exceptional service life.

Health & Safety Notes

While Ekki lacks a distinct odor, contact with its dust or fibers has been linked to mild skin irritation in some individuals. As with all hardwoods, protective gear and dust collection are recommended when machining or sanding.

Ekki timber on the ground

Sustainable Sourcing and Environmental Impact

Ekki is not listed under CITES, but it is classified as Vulnerable on the IUCN Red List. Populations have declined by more than 20% over the past three generations due to habitat loss and significant harvesting pressure. Sustainable sourcing is essential to maintain its availability for future generations.

Choosing sustainably sourced Ekki supports environmental conservation and promotes ethical business practices. Responsible sourcing is crucial. We must consider:

• Certification: Look for suppliers who provide certification from organizations like FSC (Forest Stewardship Council) to ensure the wood comes from sustainably managed forests.

• Legal Compliance: Verify that the wood complies with international trade regulations to avoid contributing to illegal logging.

• Reforestation Efforts: Some suppliers participate in reforestation programs to replenish harvested areas.

  
  

Choosing sustainably sourced wood supports environmental conservation and promotes ethical business practices. For more detailed information and sourcing options, visit us at www.borosawmill.com 

Availability and Pricing

Ekki is relatively rare in the United States, though more commonly found in European markets. As an imported hardwood known for its remarkable properties, its price sits in the mid- to high-range.

Boro Sawmill & Timber Co. is the largest Ekki importers in North America. For the best available pricing and lead time please contact us.

Final Thoughts

Ekki is one of the world's strongest natural materials, known for its durability, structural strength, and resistance to biological and environmental threats, making it ideal for marine and outdoor applications. Though challenging to work with, Ekki provides decades, often generations, of reliable service.

For those who can manage its weight and toughness, Ekki is one of nature's finest hardwoods, offering durability, beauty, and versatility. Whether used in construction, furniture, or outdoor projects, understanding its characteristics and proper care is essential to maximize its potential.

For more detailed information and sourcing options, visit us at www.borosawmill.com to explore the benefits of Ekki and discover how it can elevate your next project.