To limit the probability that rooms and compartments having linen chute or refuse chute intake openings will be too small, which could lead to persons having difficulties in accessing the intake openings, which could lead to linen or refuse being placed outside of the chute in the room or compartment, which could lead to the buildup of refuse or linen to a point where the door to the room or compartment will not close properly, which could lead to a fire spreading through the shaft intake openings or originating in the room or compartment spreading to other parts of the building, which could lead to harm to persons in other parts of the building.