Provided is a landing jamb including a jamb main body having surfaces on which a design plate being flat plate having a larger plate thickness than a plate thickness of the jamb main body is superposed. The design plate is fixed to the jamb main body by a plurality of sets of fixtures. Each of the fixtures of at least one set of fixtures includes a stud bolt, a main nut screwed over the stud bolt, and an intermediate member through which the stud bolt is caused to pass, and which is interposed between the main nut and the jamb main body. A melting point of a material used to form the intermediate member is lower than a melting point of a material used to form the stud bolt and a melting point of a material used to form the main nut.