A division of M-D Building Products, our four unique operating groups provide high quality, customized products, efficient service, technical support, and value-added services. Aluminum: Capacity to extrude 30 million pounds of aluminum annually. Complete anodizing, painting and expanded custom and CNC fabrication capabilities. Specialty products include aluminum storm doors, screen doors, and commercial window screens. Extrusion plant is located in Missouri. The specialty products and custom fabrication plant is located in South Carolina.