Abstract: A method of fabricating a mailbox is disclosed comprising the steps of obtaining an extruded metal bar having a generally L-shaped cross section defining an elevation flange and a base flange, wherein the length of the elevation flange is selected to correspond to the desired height of the side walls of the mailbox and the length of the base flange is selected to correspond to one-half of the desired width of the mailbox floor. The outside face of the elevation flange has one or more areas shaped as a decorative molding detail to create the appearance of a case mailbox. The base flange has an inside face in a pattern of raised longitudinal ribs that define a grooved surface. The open channel of the mailbox is created by cutting two equal-length billets from the extruded bar, welding them together facing each other, attaching a back pate, a hinged door plate and an ornamental cast metal roof. The appearance of the finished box creates the illusion of a cast metal mailbox.