Rack storage system and rack frame part for a rack storage system

A rack storage system comprising

• storage racks which are arranged parallel to one another and comprise storage locations for unit loads, the storage locations being arranged next to one another on storage planes located on top of one another, wherein the storage racks comprise either exclusively outer storage racks or outer storage racks and inner storage racks and are installed in a stationary manner on a bottom plate,
• one or multiple rack aisles between the storage racks in an x-direction,
• one or multiple automated storage and retrieval units for transporting the unit loads, wherein a corresponding storage and retrieval unit is displaceable in a corresponding rack aisle,
• building walls which are mounted on the outer storage racks via support structures and the building walls comprise wall elements, wherein the wall elements are arranged on profiled support elements, wherein the support structures comprise the profiled support elements and each profiled support element is affixed, by means of corresponding spacers, to a corresponding outer storage rack in mounting regions that are separate from one another, wherein an adjustment means is provided per spacer, and a fixing means is provided per spacer, wherein a horizontal distance between a corresponding profiled support element and the corresponding outer storage rack is adjustable by the adjustment means and, horizontal distance is fixable by the fixing means,
• wherein:
• the adjustment means comprises in each respective mounting region a mounting base affixed to a corresponding outer storage rack and a row of clearance holes prefabricated on a corresponding profiled support element, wherein the row of clearance holes comprises first clearance holes and second clearance holes,
• the fixing means comprise screws,
• the corresponding spacers comprise, in each respective mounting region, a first spacer and a second spacer, wherein the first spacer forms a first clearance hole and the second spacer forms a second clearance hole at a first connection end respectively,
• the first spacer and the second spacer are directed, respectively with the first connection end, toward a corresponding profiled support element and overlap with the corresponding profiled support element such that one of the first clearance holes on the corresponding profiled support element and the first clearance hole on the first spacer are in axial alignment and one of the second clearance holes on the corresponding profiled support element and the second clearance hole on the second spacer are in axial alignment,
• the first clearance holes of the corresponding profiled support element and the first spacer are interspersed with one of the screws,
• the second clearance holes of the corresponding profiled support element and the second spacer are interspersed with another of the screws, and
• the first spacer and the second spacer are supported, with a second connection end, on a corresponding mounting base, wherein the first spacer and the second spacer diverge away from each other at sloped angles starting from the mounting base.