Beams: The beams in the selective pallet rack system can be either box beams, step beams or C-Channel type structural beams.
Step Beams are designed with a step on the top which enables wire decking, pallet supports and other items to sit in the step to create a beam or shelf level within the racking bay. This step is typically 1 5/8” deep and is located at the top inside edge of the step beam. Located on each end of the step beams are connector clips which enable the beams to be attached to the uprights. These connectors have a variety of pins or hooks that connect to the upright itself.
Box beams are made from the same roll formed steel but do not have the step on them. They are actually square shapes like a box. They too have the same type of connectors that the step beams do.