Partition wall of a storage

A partition wall arrangement of a storage, comprising a wall element with a framework, the framework comprising a horizontal upper element and side elements, and the wall element being between the side elements and fastened to the upper element, the partition wall arrangement further comprising a horizontal beam in connection with both side elements, the beams being parallel to each other and transverse to the wall element, wherein the wall element is a liftable wall element, and

• the side elements being supported at their central section to the beams so that the wall element is movable along the beams,
• both side elements being provided with a turnable mechanism which can be turned to a transfer position and a holding position,
• in which transfer position the wall element is arranged to be movable by a gantry robot, and
• in which holding position, the liftable wall element being lifted up, the partition wall arrangement is arranged to allow the movement of the gantry robot on both sides of the partition wall arrangement.