An enclosure includes a plurality of modular corner segments and a plurality of modular wall segments that connect together to at least partially define an internal compartment of the enclosure. The wall segments extending lengths between opposite free ends. At least a majority of the wall segments are fabricated from a polymer. Each corner segment includes opposite first and second receiver sockets that are each configured to receive a corresponding free end of a corresponding wall segment therein to connect the corner segment to the corresponding wall segments. At least a majority of the corner segments are fabricated from a polymer. The corner segments and the wall segments connect together to define the internal compartment of the enclosure.