Storage Unit Costs & Sizes

At A-1 Self Storage, we serve all your storage needs by offering a wide variety of unit sizes. From small units to store a closet worth of items to large units to store a whole house worth of belongings, and everything in between, we have the space for you! From choosing the right-sized storage unit to selecting the type of unit access you prefer and making your payment online, our Fullerton, California, facility simplifies your self storage experience!

Our facility is cleaned and sanitized frequently, and you can be sure our associates are following all social distancing best practices.

Unit Size Guide

Reserve a Unit Online

Did you know that A-1 Self Storage offers the convenience of renting your storage unit completely online? Reserve online to save time and guarantee your space! Easily make your monthly payment by means of a credit card and receive an email confirmation. You can complete a paperless unit reservation from the comfort of your own computer, tablet, or smartphone – day or night!

We guarantee you’ll love your storage unit, or we’ll make it right. And, we only do month-to-month leases, so you’re never stuck in a contract.


Customer elevator for easy access to upstairs storage units at A-1 Self Storage
Outside storage units at A-1 Self Storage in Fullerton, California
Outside storage units and large carts at A-1 Self Storage in Fullerton, 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.