Please use this calculator to determine what size storage space you will need. Enter the number of items you have and click the "calculate" button at the bottom of the form. The total square footage needed as calculated by this form should be used as a rough guide only. Once you find the estimated size unit you need please contact our main office at (508) 291-9916 to check availability and pricing. NOTE: If an item is not listed, substitute a similarly sized item.