Cantilever racking is important in a shelf. Cantilever racking is suitable for storage of the long material, the plate, the annular material, pipe and irregular goods. The cantilever can be one-sided or two-sided, cantilever rack has the advantages of stable structure, good load capacity, space utilization rate higher characteristic. The cantilever rack pillar with H type steel or cold rolled steel, cantilever and adopts a square tube, cold-formed steel or H steel, cantilever and between column connection type using plug or bolt, a base and between column connection type with bolts, base by cold rolling steel or H steel.