Profile: Porta-King Building Systems offers a wide range of prefabricated building systems. We produce storage platform, catwalk, guard tower and elevated in-plant modular building. Our modular tall walls are used for a variety of applications in buildings where modular walls are needed to run as high as floor to ceiling. Our brands include Pivotlock™, Panelking™, Versaking™, Duraluminim™ and Durasteel™.