To provide an article mounting method for a handrail or the like mountable even when a space between an inside wall member and a skeleton wall surface of a skeleton is equal to or less than the thickness of the inside wall member although there was a problem wherein an article could not be mounted when the space between the skeleton wall surface of the skeleton and the inside wall member is narrow.

A wall insertion hole 10 and a plurality of screw insertion holes 12 are formed in the inside wall member 1, and plate-shaped reinforcing pieces 7 in the same number of the screw insertion holes 12 are sequentially inserted from the wall insertion hole 10 without being deformed so as to be in a parallel state on the back side of the inside wall member 1. Screw cylinders 15 of the reinforcing pieces 7 are fitted into the screw insertion holes 12 from the back side of the inside wall member 1, and screws 11 are temporarily screwed with the screw cylinders 15 from the front side of the inside wall member 1. After engaging holes 31 of a base plate 30 are engaged with the screws 11, the screws 11 are fastened and fixed, and a screw 36 for fastening an article body 35 mounted to the inside wall member 1 is screwed with a nut 37 at the center of the base plate 30.