Intermodal Structures As its name implies, Intermodal Structures designs, manufactures and delivers single and multi-story, steel frame buildings (intermodally) to customers located anywhere in the world. The buildings are earthquake and hurricane/typhoon proof and their moment frame design enables 40 feet of clear span without requiring any columns or structural walls. Their long life, expandability (both horizontally and vertically), adaptability to different uses over time and relocatability future proofs our buildings.