Method of stacking refrigerated shipping containers

A computer program product stored on a computer readable storage medium for determining a stacked formation of refrigerated shipping containers comprising:

• a medium for receiving an input regarding a container temperature of a plurality of refrigerated shipping containers;
• the medium comparing the input to stored parameters to categorize the plurality of refrigerated shipping containers in a first temperature container category or a second temperature container category, each of the refrigerated shipping containers having a condenser;
• and
• the medium outputting a recommended stacked formation of the refrigerated shipping containers based on the temperature categorization of the refrigerated shipping containers;
• wherein the first temperature container category is a low temperature container category, wherein the second temperature container category is a high temperature container category, wherein the high temperature container is maintained at a temperature greater than a maintained temperature of the low temperature container;
• wherein the recommended stacked formation is selected such that there is recirculation of condenser air from a low temperature container to a high temperature container.