Abstract: A walk-in cooler arranged in accordance with the invention includes a one or more refrigeration sections and a freezing compartment within the refrigeration section. The wall panels defining the freezing compartment are substantially thicker than the wall panels defining the refrigeration section. To accommodate the substantial change in panel thickness, panel conversion members are provided that couple panels having a substantial different in panel thickness, yet maintain a uniform exterior wall appearance. Ceiling conversion panels are also provided to enable a ceiling transition between the refrigeration section and the freezer compartment.

Abstract: A refrigeration wall system including interlocking panels having fastening mechanisms coated with a backing material, and a method for making the fastening mechanisms. The fastening mechanisms are embedded within insulating material inside of the interlocking panels. The backing material improves the adherence of the fastening mechanisms to the insulating material and thereby increases the overall strength of the refrigerator wall system.