ST60 upright, which is used for multilevel systems when higher loads are required or in seismic areas. The ST60 system is characterized by the ST60 frame consisting of two closed uprights, two galvanized feet and a number of cross-braces and diagonal braces depending on the height of the frame. The standard depths are 400, 500, 600 mm, with heights from 2000 to 9000 mm with a punching every 500mm.