Additional ans to add on to previous ans for facilitator's question

Firstly, mobile racking is very expensive compared with other systems, it is particularly suitable for cold stores where the space utilization is the most important factor. Secondly, mobile racking is preferred when the rental of the warehouse is high, because mobile racking is particularly efficient in terms of maximizing available storage space. Since the storage space are getting more and more expensive, optimum space utilization has become a necessity. Approximately 7.5m of space is required for each pallet in a narrow aisle racking system, and drive-in racking uses around 6.6m per pallet. Comparing to the two storage systems, powered mobile racking on the other hand, only uses 4.6m per pallet. The installation of a powered mobile pallet racking system into an existing warehouse has the potential to eliminate the need to expand it, or move to larger premises. Thirdly, mobile racking is a better choice when the quality of the product is essential such as food products. Each pallet is individually supported in the mobile racking, so the quality of the storage is excellent. However, drive in racks and block stacking storage system may cause damage to stock. Fourthly, mobile racking can be used when the company does not want to replace the fork lift trucks or invest in expensive to maintain technology. This is because there is no need for special handling equipment, as a conventional fork lift truck can be used with mobile racking. In contrast, both narrow aisle racks and double deep racks require special trucks. Another factor leads to using mobile racking system instead of other storage system is that the stock movement is not very fast, which means the number of line items is high but frequency of accessions per line is low. Last but not least, mobile racking is chose when access to individual pallets is required. Mobile racking system works by moving the position of a single aisle within a solid block of racking. This exposes the required rack face and allows access to individual pallets. Whereas, drive in racks, block stacking, and double deep racks have poor stock access problems.