They are pre-hung in the frame and ready for installation. Single man doors (3070) and double door units (6070) are available. Choose from Single pane, double pane, and tempered insulated glass. Storefront doors can be customized to include sidelites, transoms, panic exit devices, bottom rails, and other hardware options. MIDCO Building Products is Your One Stop Shed Shop! MIDCO Building Products is your one stop supplier for steel and fiberglass doors, vinyl and aluminum windows, hardware, and accessories for portable storage buildings, mobile homes, outdoor buildings, sheds, or detached garages. If you need it, we have it!.