(The stand-in shelf is one of the most useful shelving systems that allow access to the rack system, providing maximum storage space and volume usage. Couples provide great advantages with an efficient space to store a large number of color palette products of the same type. Therefore, one of the ideal rack systems is the rack system that can be inserted into it. If we take advantage of the rack system, we can say first that it provides up to 85% more efficient space. While increasing the use of space, they also reduce the lanes between the shelves. At the same time, the input and output of the products can be monitored easily. Loading channels in the rack system also allow the pallets to store different types of products. In this type of shelf system, one side can access the rack channels; however, if desired, the application can be added to the rack channels to provide dual access and exit. This shelf system, which can be accessed from both sides, is called a pallet rack rack system. Such an add-on to the shelf system system is a great advantage. When there are products that need to be stored under controlled temperature such as ice cream stores and refrigerated stores, the rack systems can be used in the car and provide great comfort.