Abstract: A wall safe including a rectangular box adapted to fit relatively closely between adjacent wall studs of a building and having a boltless rectangular shaped face plate attached to a front surface of the box which has projecting edge portions extending beyond the sides of the box across or nearly across the front edge of the wall studs is disclosed. The box contains a chamber and a front surface which defines a generally rectangular access opening with slotted lower corners having a lateral slot dimension which is greatest at the base of the slots and least at the top of the slots. The face plate contains a rectangular shaped door opening with rounded corners disposed in registry with the box access opening so that edge portions of the front surface of the box and an upper portion of the lower slotted corners project behind and within the door opening to form a lip extending substantially around the door opening against which a door may shut into said face plate.