Walk-in freezers are covered in insulated panels, which are usually sourced from a prefab construction that allows for quick and accurate assembly. These modular panels are typically constructed from an insulating core and inner and outer metal skins. Two of the materials used most commonly to make the core of these panels are rigid extruded polystyrene and foamed in place polyurethane. Walk-in freezers also frequently feature tongue and groove panel edges with cam action locking systems. They are usually finished on the interior and exterior with heavy gauge steel, like 26 gauge stainless steel or galvanized steel. Stainless steel galvanized steel finished walls may feature embellishments such as stucco embossing, bright stucco embossing or tan stucco embossing. Not all walk-in freezers have to have floors, but if they do, the floor is commonly also made from a strong steel such as 16 gauge stainless steel. In the place of floors, many manufacturers offer floor screeds, or coverings, made from from vinyl or a similar material. Those interested in investing in one or more walk-in freezers must consider a number of different application-specific factors, such as the type and volume of goods they plan to store in their freezers, the amount and type of space they have in which to install their freezers, how frequently they plan to access their freezers and whether or not they plan on wheeling carts or trolleys into their freezers.
Considerations such as these help walk-in freezer manufacturers decide what type and amount of insulation the freezers require, the maximum and minimum temperatures at which the freezers should operate, what type of flooring the freezers require and what type of doors the freezers require. Walk-in freezers are available in standard and custom designs, and they may be delivered with a variety of certifications, including those from UL (formerly Underwriters Laboratories) and NSF (National Sanitation Foundation). For more information and the best advice, contact a walk-in freezer specialist and discuss your specifications.