The invention relates to an interior trim part (2, 3, 4, 5, 6) for the planar installation with similar interior trim parts for producing a wall covering inside an aircraft cell, wherein the interior trim part (2, 3, 4, 5, 6) can be rigidly connected to the aircraft cell. The interior trim part has a support structure (20, 21, 22, 23), wherein at least one holding position (9) is provided, which is designed to bear a load in the interior.