Selective pallet racking general said should be one in 1.6 ~ 4.5 meters, and between the time shall be no less than 1.2 channel is ~ 2 meters between. Selective pallet racking should ensure that the distance between the passenger flow. Small shops to meet the door selective pallet racking setting wall is not a problem, large food stores, department stores and clothing store, etc. Selective pallet racking according to the size of the stores of the formation of the person, the volume of business varieties to work out a reasonable distance.