The cantilevered frame has a combined structure and is suitable for storing long materials, ring materials, plates, pipes and irregular goods. According to the bearing capacity, it can be divided into light duty rack , medium duty rack and heavyduty rack. According to the structure, it can be single-sided or double-sided. The cantilevered shelf has the characteristics of stable structure, good load capacity and high space utilization. The cantilevered rack column is mostly made of H-shaped steel or cold-rolled steel. The cantilever adopts square tube, cold-rolled steel or H-shaped steel. The cantilever and the column are connected by bolt or bolt. The base and the column are bolted. The base is coldRolled steel or H-beam. Cargo access is carried out by forklift, driving or manual. The height of the shelf is usually less than 2.5 meters (up to 6 meters if accessed by a forklift), the length of the cantilever is within 1.5 meters, and the load per arm is usually within 1000KG. Such shelves are mostly used in the machinery manufacturing industry and building materials supermarkets. After adding the shelf, it is especially suitable for warehouses with small space and low height. It is easy to manage and has a wide field of view. Compared with ordinary shelf-type shelves, the utilization rate is higher.