Abstract: A waste disposal appartaus comprising a containment cage for holding conventional waste containers. The containment cage has a base platform with attached support feet. Upwardly extending members define the containment portion of the cage, the members having attached centering guides, and a perimeter member to define the open top of the container. Each containment cage is stacked atop a previous containment cage in a column within a shaft, the support feet of each containment cage engaging the perimeter member of the previous containment cage and the centering guides engaging the walls of the shaft to provide a clear space around the containment cage.