Carton flow racking is generally used for sorting of small cartons in distribution centers or temporary storage area in production and assembling process. Carton flow racking uses the same access principle as gravity racking, but the goods stored are materials in carton and are accessed manually. One end of such racking is used for goods replenishing while the other end used for sorting. Cartons slide on the flow strips of the tilted platform from the goods replenishing end to the output end, so that FIFO goods flow can be achieved and the sorting efficiency can be improved.