The Next Generation for lumber and building supplies in the Lowcountry. Four Corners Building Supply is a full-service lumber yard with an expansive product inventory. We provide a wide array of exterior and interior building supplies from industry leading manufacturers for clients to complete projects of any size. Our team is comprised of personnel with extensive technical product knowledge and we are positioned to provide the highest quality service throughout the greater Charleston area. A list of exterior and interior building supplies that we provide include: Framing and Engineered Products Exterior Trim, Siding and Doors Interior Millwork and Doors Windows, Decking, and Hardware/Tooling Structural Building Components Millwork and Door Manufacturing Our primary market services the millwork and woodworking needs for interior spaces. We stock and produce architectural mouldings, as well as craft radius mouldings and custom paneling. In addition, we distribute and build doors for any size project.