To provide a fittings structure which is safe and excellent in designability.

In this fittings structure, a hinged door 3, which can be opened outward to a passage 1 from a habitable room 4, is provided in a partition wall 2 for a partition between the habitable room 4 and the passage 1; and a door panel 31 of the hinged door 3 is provided in the passage 1, which is faced by the hinged door 3, in such a manner as to be set back with respect to a wall surface 2a of the partition wall 2 on the side of the passage 1, so that a door knob 32, provided in a state of protruding from the door panel 31, cannot protrude outward. Additionally, in the fittings structure, the habitable room 4 serves as any one of a toilet, a lavatory and a trunk room.