Storage Unit Size Guide
Not sure what size storage unit you need? Use this guide as a starting point to compare common storage unit sizes at Castroville Self Storage. We offer convenient ground-floor storage units from compact 5x5 units up to large 12x30 units, including indoor units, drive-up units, and select larger spaces suitable for interior vehicle storage. All storage needs are different, and the right unit size depends on what you are storing and how you organize your items. Our team would be happy to help you choose the right size.
How to Choose a Storage Unit Size
Step 1: Make a List of What You Plan to Store
Start by making a quick list of the items you want to store. Include boxes, furniture, appliances, business items, seasonal items, tools, and anything oversized or awkwardly shaped.
Step 2: Separate Boxed Items from Large Items
Think about which items will fit into boxes and which items will need their own floor space. Larger items such as mattresses, sofas, tables, appliances, shelving, equipment, and bicycles can affect the unit size you need.
Step 3: Estimate the Number of Boxes and Furniture Pieces
Estimate how many small, medium, and large boxes you will have. Then list the larger furniture or household items you plan to store. This will help you compare your belongings to the storage unit examples below.
Step 4: Compare Sizes or Ask Us for Help
Use the Size Guide Breakdown below to compare common storage unit sizes. If you are not sure which size is best, contact our office. Tell us what you plan to store, and we would be happy to help you choose a unit.
Size Guide Breakdown
Need Help Choosing?
Storage size can be hard to estimate from a list. If you are unsure, please call or visit our staffed office. We would be happy to help you compare sizes and choose a storage unit that fits your needs. You can also view available units and rent online








