Black locust is wood sourced from the black locust tree (Robinia pseudoacacia). Known for its durability and strength, black locust is popular for various outdoor construction projects, including decking, fencing, and landscaping.
Black locust offers exceptional durability, resistance to rot, and insect resistance, making it an ideal choice for outdoor applications. It's also sustainable and environmentally friendly.
Yes, black locust is considered a sustainable option. The black locust tree grows quickly, is adaptable to various soil types, and requires minimal maintenance, reducing the need for chemical treatments and promoting environmental conservation.
Nominal dimensions refer to the rough-cut size of lumber before it’s planed and dried, while finished dimensions reflect the true size after milling. For example, a 1x6 Black Locust board actually measures about ¾” x 5½” once planed. This difference matters for architects and builders because it affects installation precision, spacing, and yield calculations. When designing with hardwoods like Black Locust, accounting for finished dimensions ensures proper alignment, accurate take-offs, and seamless integration into structural or façade systems.
Finished dimensions determine the true coverage area and fastening layout, which are critical when detailing rain screens, decks, or siding systems. Architects often specify the net size rather than nominal to guarantee a precise fit and avoid costly miscalculations. Understanding this distinction helps coordinate with millwork drawings, shop details, and on-site installations.
Our Premium Grade Black Locust meets the highest architectural standards, featuring over 90% heartwood, tight milling tolerances, and minimal visual defects. Each board is kiln-dried, precision-milled, and inspected to ensure uniform grain and dimensional stability. This grade offers exceptional performance for exposed applications—such as decking, cladding, and boardwalks—where aesthetic quality and structural reliability are equally important.
All of our Black Locust lumber is harvested and milled domestically in the United States, primarily from FSC-compliant forests in the Appalachian region. By sourcing locally, we reduce transportation emissions and promote sustainable forest management. Each piece of wood contributes to a lower-carbon building material cycle while supporting American forestry and manufacturing jobs.
Black Locust is one of the longest-lasting hardwoods in North America, with an expected service life of 50 years outdoors—often outperforming tropical species like Ipe. Its natural rot resistance, density, and lack of need for chemical treatments make it ideal for decks, docks, and siding that must endure harsh climates. With basic maintenance, the wood retains both its structural strength and visual warmth for decades.
Black Locust Lumber offers a variety of black locust products, including decking solutions for outdoor spaces, decking for marinas and yacht docks, boardwalks, site furnishing, custom rainscreens and versatile siding options. Our architectural products are crafted to meet the highest standards of design and functionality, making them perfect for a wide range of outdoor construction projects.
Compared to other wood species commonly used for outdoor applications, such as cedar or pressure-treated pine, black locust wood offers superior durability and longevity. It is naturally resistant to decay, rot, and insect damage, eliminating the need for chemical treatments.
Yes, black locust can be stained or painted to achieve the desired aesthetic. However, many customers choose to leave it untreated to showcase its natural beauty and durability.
Premium Grade ensures consistent heartwood color, fine grain, and precise milling for a professional, uniform appearance. Architects and designers favor this grade for high-visibility applications such as façades, rain screens, and luxury decks where both aesthetics and performance are paramount. It provides confidence that each board will age evenly and meet LEED and FSC sustainability criteria.
Unlike pressure-treated pine or tropical hardwoods, Black Locust contains natural compounds such as flavonoids and tannins that protect it from insects and decay. This eliminates the need for synthetic sealants or toxic preservatives, making it safer for the environment and perfect for sensitive applications like playgrounds, parks, and waterfronts.
Yes. With a Janka hardness of 1,700 lbf and a modulus of rupture of over 15,000 psi, Black Locust provides outstanding structural strength for heavy-duty applications such as boardwalks, piers, and bridges. Its durability allows it to handle foot traffic, moisture exposure, and freeze-thaw cycles without warping or splitting.
We recommend stainless-steel or coated fasteners to prevent staining caused by tannin reactions. When properly fastened, Black Locust’s stability ensures minimal movement, which helps maintain joint integrity and prevents loosening over time. Using hidden clip systems or countersunk screws preserves the clean architectural lines of decks and rain screens.
Black Locust offers the same hardness and longevity as Ipe or Teak but without the environmental cost of tropical deforestation. Because it’s native to North America and milled domestically, it supports local economies, shortens supply chains, and aligns with sustainable building goals. Choosing Black Locust helps achieve LEED credits for regional materials and low-carbon sourcing.
Placing an order with us is a personalized process tailored to your specific project needs. Begin by reaching out to our expert sales team through our website or via direct contact. Our team will assist you in understanding your requirements, exploring options, and selecting the perfect product for your project. We pride ourselves on providing expert guidance and support throughout the ordering process.
We offer worldwide shipping for our black locust products, facilitated through our operational facilities in both the EU and the US. This dual-location approach not only ensures efficient delivery but also enhances sustainability by reducing shipping distances. Shipping options and costs vary based on the order size, weight, and destination. For detailed information, please refer to our Terms and Conditions or contact our customer service team.
Yes, we provide bulk discounts for substantial orders of black locust products. To discuss pricing and availability for bulk quantities, please contact our sales team. We are committed to offering competitive rates for large projects and ensuring you receive the best value for your purchase.
Commercial deliveries are made to job sites with loading docks or forklifts, while residential deliveries require a liftgate truck for ground unloading. Residential customers should ensure driveways are accessible to freight trucks and plan for someone on-site to receive the shipment. Understanding delivery type ensures a smooth process and prevents unexpected fees or delays.
Lead times vary by product and order size, typically ranging from 2 to 6 weeks, depending on custom milling and finishing requirements.
LTL (Less-Than-Truckload) shipping is an efficient option for smaller or sample orders. Your shipment shares truck space with other freight, reducing shipping costs while maintaining professional handling. This method is ideal for architects ordering mock-ups, small residential projects, or replenishment orders that don’t require a full truckload.
Ensure there’s adequate space for the delivery vehicle to park and unload safely. Keep driveways clear, provide instructions for gated properties, and have appropriate tools or personnel available to move lumber after unloading. Proper site preparation helps protect your investment and ensures smooth logistics.
Although rare, freight damage can occur. Carefully inspect all pallets before signing and note any visible damage or missing pieces on the bill of lading. Contact our logistics team immediately with photos, and we’ll coordinate swift replacements or claims. Our packaging methods—plastic wrap, moisture barriers, and reinforced pallets—minimize such issues.
Inspect annually for dirt, debris, or surface buildup, especially in shaded or damp areas. Light cleaning with a soft brush or low-pressure washer removes organic matter and helps maintain slip resistance. Keeping surfaces dry and ventilated extends service life dramatically.
While black locust does not require sealing or staining for protection against decay and insects, although some customers choose to apply a clear sealant or wood preservative none is required as Black Locust develops a natural silvery grey patina that protects the wood for long lasting durability.
When properly maintained, black locust can last for several decades, even in harsh outdoor environments. Its natural resistance to decay and insect damage makes it one of the most durable wood species available for outdoor construction.
Unfinished Black Locust naturally transitions to a silver-gray tone similar to aged teak. This weathering process forms a protective patina that enhances resistance to moisture and UV exposure. Many architects embrace this natural aging effect for a timeless, organic appearance.
Yes, use low-pressure washing with mild soap to clean surfaces without damaging the natural wood grain.
Ensure proper airflow, periodic cleaning. Silvery-gray patina is natural and cannot be prevented.
Yes, individual boards or tiles can be easily replaced without dismantling entire installations, saving time and cost.
Absolutely. Its density and tight grain make it exceptionally stable through freeze-thaw cycles. Unlike softer woods, it won’t cup or split when exposed to moisture and temperature swings, making it ideal for northern climates and waterfront boardwalks exposed to seasonal extremes.
Yes. A signature is required to confirm receipt and condition of the materials. We recommend inspecting the lumber for any visible damage or shortages before signing. Noting issues on the delivery receipt helps expedite replacements or claims, ensuring complete customer satisfaction.
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