Mid-Am Building Supply is a Midwest wholesale distributor specializing in millwork and high-value building products. Founded in 1967 and a subsidiary of ADENTRA, the company serves customers across a ten-state region through strategically located facilities and a dedicated team focused on helping its partners grow. Its broad inventory brings together products from leading manufacturers for residential and building projects.

Mid-Am supplies interior and exterior doors, door hardware, windows, roofing, siding, insulation, decking and railing, cabinets, mouldings, fasteners, locks, and other construction materials. Its catalog also includes garage and storm doors, ventilation products, house wrap, drywall systems, flashing, metal roofing, stairs, and structural connectors. The company offers its Next Edge door system, designed to combine style, craftsmanship, performance, and security.

Services and support include prefinishing, cabinet design, digital catalogs, customer portals, and access to manufacturer programs. With regional customer service centers, substantial product inventory, and its own delivery fleet, Mid-Am aims to provide customers with timely access to the products and support they need.