All Gateway Industries Joists, Beams, Stringers are compatible with all major aluminum shoring systems including Aluma Systems' Aluma Beam, Aluma Stringer, Aluma Strongback, and Jasco's Hi-Lite Beam, Hi-Lite Stringer, and Patent Construction' (Harsco) Patent Joist, Patent Stringer, and Symons Joist, Symons Beam, and Safway Joist, Safway Stringer, and Waco Scaffolding Beam, Waco Stringer, etc....