Shelf racks with a load capacity of 175 kg per shelf and 875 kg per rack. Overall, these heavy-duty shelves are a true multi-talent and can support almost any load. These heavy-duty shelves can be used as both a workbench and shelving. The heavy-duty shelves serve two practical functions. Set up the heavy-duty shelves as storage racks or transform them into a workbench; both options are possible with these heavy-duty shelves. You can outfit your entire workshop or hobby basement with these heavy-duty shelves.