Shelf storage racks have a simple structure. They are most often used to store various types of goods, but also cardboard boxes and documents.
The racks are stable due to having a structure consisting of 4 angle bars (made as a single element). They may contain any number of metal shelves. The angle bars have dense perforation, which allows the shelves to be screwed at any interval, depending on the size of the load stored on the rack.
The shelves can be mounted at different heights (you can adjust the height of the shelf to the stored object).
Used in storage racks are metal shelves or shelves made of MDF board, which are put inside the frame.