Steel Structure Workshop for Production Lines and Overhead Cranes Crane 1–300 t Clear span 12–40 m Eave height 9–15 m CE & EN 1090-1 A steel structure workshop is a production tool. The crane, the column spacing and the floor loads are fixed by what you make and how you move it; the building follows. We prefabricate the frame, the crane runway, the purlins and the cladding as one package. Frames are welded H-section in Q355B and bolted on site. Clear spans run from 12 m to 40