A push-back racking system consists of deep bays in which pallets are supported by rollers. The rollers are declined from the back to the front so that the remaining pallets will move towards the entrance of the bay when one has been removed. Similarly, when a new pallet is placed on the racking, it can be used to push the pallets, which are already on the racking, backwards. Therefore, this racking operates on a ‘last in, first out’ system.
Typically, this racking has a maximum height of around 8m and each bay is no more than 5 pallets deep.
When designing a slab to support a push-back racking system, the legs of the racking are considered to apply static point loads to the slab. When designing the system itself, horizontal thrust from the movement of the pallets may need to be considered.
Thanks to the high density of storage push-back racking can achieve, it is particularly useful for cold stores and for storing seasonal goods.
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