Abstract: A method, apparatus and system for manufacturing containers, such as rotationally-molded noise-dampening containers. The containers may be made of linear low-density polyethylene (LLDPE) with a unique structural configuration to provide a low maintenance, noise-dampening, impact and dent resistant, durable, strong and rust proof container. The bottom of the container optionally includes strengthening bars positioned within molded grooves to provide an additionally reinforced bottom panel of the container. A nut may be molded in place during the rotational molding process to connect to a caster plate thereto and thus provide an integral leak-proof connection to the wheel assembly.