Mezzanine storage system provides a multiply-level system which significantly increases your storage capacity by expanding upwards rather than outwards. It can be made two or three floors. It utilizes most bulk and space saver sizes and configurations in a variety of combinations to take full advantage of valuable warehouse space. By using the fork man, the goods can be transported to the second and third floor. And then they can be sent to the fixed area by using the pallet jack or flat truck. It usually uses the rack upright frame as the supporter. The steel shelf panel has a big load capacity with the advantages of low cost and easy installment. This kind of rack is suitable for the fields of warehouse in a big height, little goods, unloading it manually and big storage quantity. It can be used in the fields of car industries, electric mechanic and so on