Storage system with a multi-level storage rack and method of operation for providing transport units from a storage facility on at least one removal line

A storage system for transport units comprising:

• a plurality of storage racks with multiple storage rack levels for storage of the transport units, wherein the storage racks have storage locations that are at least double deep, and wherein pairs of the storage racks each have a storage racking aisle between them;
• at least one automated storage and retrieval apparatus that travels along each storage racking aisle, wherein the automated storage and retrieval apparatus has a carrying area for carrying transport units and has a load handler for displacing transport units into storage locations that are at least double deep and for removal of transport units from storage locations that are at least double deep;
• and
• at least one control for the control of the system and its components;
• wherein the control is operable to control said automated storage and retrieval apparatus to place the transport units in a depth position of the storage locations based on a categorization of items within the transport units.