The mezzanine rack system involves constructing an intermediate mezzanine floor over an existing workspace or rack to increase storage space. These systems can have two or three floor and are suitable for storing light and medium sized items, ideal for both large quantities of varied items or small batches. Goods are typically transported to the second or third floors via forklift, hydraulic lift, or goods elevator, and then moved to specific locations using light trolleys or hydraulic pallet trucks. Such systems often use medium duty or heavy duty shelving as the main body and support for the floor panels, usually made from cold-rolled steel flooring, checkered steel plates, or steel grating panels. This type of system is widely applied in the automotive parts sector, car 4S shops, light industry, electronics, and other fields.