Cantilever shelves are suitable for storing long materials, ring materials, sheets, pipes and irregular goods. The cantilever can be one-sided or two-sided. The cantilever rack has the characteristics of stable structure, good load capacity and high space utilization. The cantilever rack column adopts H-beam or special cold-rolled section steel, the cantilever adopts square pipe, bending section steel or H-beam, the cantilever and the column are connected by safety pins, the base and the column are connected by bolts, and the base is made of cold-rolled section steel or H-beam. Goods are accessed by forklift trucks, travelling vehicles or by hand. It is mainly used in machinery manufacturing industry and building materials supermarket.