Storage Unit Costs & Sizes

At A-1 Self Storage, we serve all your storage needs! We offer a wide variety of storage sizes. From small units that store a closet full of items to large garage-size units that store the contents of a whole house and everything in between – A-1 Self Storage in National City, California, has the perfect unit for you.

Rest assured, your safety is our top priority. Our facility is cleaned frequently and all employees are instructed to follow social distancing best practices. If you have any questions, don’t hesitate to reach out to discuss what we’re doing to keep you and our employees safe.

Unit Size Guide

Rent Online to Save Time

Easy-to-use online bill payments make reserving your storage unit simple and fast. You can rent an A-1 Self Storage storage space from the comfort of your own computer, tablet, or smartphone – day or night! Not only does this save you time, but you also still get the best prices and specials available. And we only do month-to-month leases, so you’re never stuck in a contract.

Reserve your unit online. Receive an email confirmation with your payment receipt and your rental documents. Stop by A-1 Self Storage during business hours to receive your gate code and purchase your lock. Fast and easy!

Rent online to save time and reserve your unit. We guarantee you’ll love your clean, modern storage unit, or we’ll make it right.

Clean hallways through self storage units at A-1 Self Storage in National City, California
Front entry to A-1 Self Storage in National City, California
Palm trees around A-1 Self Storage in National City, California

*Advertised unit sizes are approximations and are for comparison purposes only. Units may be smaller than indicated or shaped differently than indicated. Customers should inspect the unit before signing the contract and the rental decision should be based on the inspection of the unit to be rented and not on the advertised unit size. Units are not rented by the square foot, and rent is not based on square-foot measurements.


**All Internet specials are at select A-1 Self Storage locations on select units. Offer applies to new rentals by new customers only at participating A-1 Self Storage locations. One offer per customer. Offer available for limited locations and is subject to availability. Offer has no cash value. No refunds or substitutions are permitted.