Black locust is a premier choice for fencing due to its extraordinary natural durability and strength. As one of the most rot-resistant hardwoods in North America, it contains organic compounds that protect the wood from fungal decay and insects without the need for toxic chemical treatments. With a Janka hardness rating of approximately 1,700 lbf, these posts are significantly denser than cedar or pressure-treated pine, allowing them to withstand harsh weathering and ground contact for 50 years or more. Choosing this sustainable, domestic hardwood ensures a rustic, low-maintenance boundary that outlasts traditional materials by decades. For more information https://www.blacklocustlumber.com/blog/the-ultimate-guide-to-split-rail-fences-with-black-locust-wood