Black Locust Lumber The American Hardwood Replacing Tropical Decking

Build with a material engineered by nature and proven over time. Black Locust Lumber delivers unmatched durability, natural performance, and a new standard for exterior design.

Black Locust Lumber
The Architect's Alternative
to Ipe & Teak

Black Locust Lumber

Naturally rot-resistant

Yallow

25-year life-span

Yallow

Zero chemical treatment

Black Locust Products

Black Locust Lumber is a fully integrated sawmill in central Pennsylvania,  supplying Black Locust products throughout the United States.
Black Locust Lumber

Our Portfolio

Luxury Spaces
Mattapoisett Bogs Wetland Restoration Project
Mira
Phipps Conservancy and Botanical Gardens
Toronto Harbourfront Project
The BodyHoliday St. Lucia / West Indies
Meta Headquarters, Menlo Park
Nvidia Headquarters
Brooklyn Botanical Gardens Visitor Center
David Rockefeller Creative Art Center
Dorchester Square Park
George W. Bush Presidential Center

Benefits of Black Locust

Building the Future with natural black locust lumber
Natural Rot Resistance
50+ Year Lifespan
Domestic Hardwood
No Chemical Treatment
No Maintenance
Ages to Silver Patina

Proudly collaborating

Introducing our ever-growing professional network
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https://cbhassociates.com/
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https://www.brasfieldgorrie.com/
https://www.is-architecture.com/
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DNA Paris Design Awards 2024 WinnerProduct of Best 2024Gold Award

ProFlow Pavers™

A high-performance permeable paver system built from naturally durable Black Locust

Learn about Proflow

“Nature already engineered the perfect material, we just refined it for design.”

About

The original pioneers of Black Locust as an architectural hardwood.

Black Locust Lumber transformed Black Locust from a traditional agricultural material—once used for fence posts and firewood—into a complete architectural product line. For over 25 years, we’ve led its evolution into premium siding, decking, and paver applications, positioning it as a true domestic alternative to tropical hardwoods.As a U.S.-based, fully integrated sawmill, we work exclusively with Black Locust. Sourced from the Appalachian region and crafted by skilled local craftsmen, every step of our process is focused on refining and elevating this single species—bringing it to the forefront of modern architectural design.

Our mission

To pioneer Black Locust as North America’s next-generation architectural hardwood.

Our mission is to elevate a native U.S. species—long trusted by farmers for its strength and durability—into the forefront of modern building. We are committed to educating the market on Black Locust as a high-performance alternative to tropical hardwoods, while championing real, natural wood over composites and energy-intensive modified materials. By advancing its use in decking, siding, and outdoor design, we aim to redefine how architects and builders specify wood—grounded in authenticity, longevity, and American-grown craftsmanship.

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