To provide an indoor locker in treatment/nursing facilities with high housing capacity capable of being installed on a wall surface side where piping/ wiring elements are arranged with an excellent appearance.

In this indoor locker in the treatment/nursing facilities where the piping/wiring elements 21 of oxygen and electricity, etc., required for treatment and nursing are horizontally arranged at the middle height of an indoor wall surface 22, a recessed part 16 in the form of housing the piping/wiring elements is formed at a back surface side part facing the piping/wiring elements 21 in a locker main body 1 whose height is from a floor to a ceiling. Also, at both upper and lower end parts of the locker main body 1, end rail parts 9 and 14 are respectively vertically adjustably arranged.