Cage for housing animals and method for enhancing floor space of same

摘要

A cage receptacle for housing laboratory creatures having an enhanced floor space. The receptacle is of the type having a base and a sidewall extending upwardly from the base. The sidewall has a bottom wall section and a top wall section with differing widths that together define a jag. The jag permits one to increase the square space allocation of the receptacle while retaining compatibility with prior art top covers and maintaining the stackability of the receptacles (inside another receptacle). A method for enhancing the floor space of laboratory cage receptacles is also disclosed.