Don't know what size self storage unit you need? Use our self storage unit size calculator to find the right size unit for your business and personal self storage needs. Estimate what size storage unit you may need by entering what you intend to store. Our calculator is designed to give you the most efficient result and we encourage you to make the best use of the ceiling height in your storage unit. If you have any questions, our expert managers are happy to give you a tour of any of our available units as well as instruct you on the proper ways to store your goods and items to get the most out of the storage space.