Abstract: A method for manufacturing an apparatus, such as a flanged interlocking molding for use in partitions such as restroom partitions is provided. The method comprises providing an elongated strip of a metallic material having a flat profile to a device comprising a roll former comprising a plurality of dies in series, each of the plurality of dies being configured to modify a profile of the elongated strip; and modifying the profile of the elongated strip from the flat profile to a profile comprising a plurality of profile segments separated by bends in the metallic material, by passing the elongated strip through the plurality of dies sequentially to define the profile. The profile segments include segments corresponding to a first arm, a body portion, a first flange layer, a second flange layer, a second arm of the apparatus.