Automated Storage and Retrieval Systems (ASRS) are generally used for larger scale projects. Whether the system is used for totes (Mini-loads) or pallets, they are the same concept. The mechanisms and structure vary widely depending on the physical properties of the loads and the throughput required. ASRS has an infeed and an outfeed. These can be automated or manual, i.e., a pallet drop off and pick-up points. The system stores or retrieves the pallets on demand and is controlled by the software, thus greatly reducing the manpower required for a conventional warehouse and results in high density storage. A good percentage of ASRS systems are rack supported structures which can go much higher than conventional warehouses. Customers with larger storage requirements, limited available workforce, limited real estate, or cold storage are all good candidates for an ASRS system.