A ceiling unit includes a first side beam supported by at least one of a plurality of upright columns erected on a floor plate of an elevator car, a second side beam supported parallel to the first side beam by a different upright column, among the plurality of upright columns, from the upright column supporting the first side beam, a rear beam that connects respective rear side end portions of the first and second side beams, and a ceiling plate supported by the first and second side beams and the rear beam.