A cold room is a walk-in storage facility used to preserve perishable foods like poultry, seafood, fruits and vegetables. Cold rooms allow for storage of foods for long periods of time through adjustable temperature control and customized sizes. There are three types of cold rooms classified by storage duration: short term up to 10 days, long term up to 6-8 months, and frozen storage for over a year. Factors like site selection, insulation, temperature and humidity must be considered when designing a cold storage room.