Self-Storage FacilityPublic StorageMoving Supply Store
Store your belongings at Extra Space Storage on 210 Wittenborn Dr in Union, MO today! Our large selection of storage units, exceptional security, multiple entrance/exit gates, wide drive isles and helpful staff make finding the right self storage unit for you easy and hassle-free. Experience the professionalism, cleanliness, and commitment to exceptional customer service that Extra Space Storage is known for. Contact us today to reserve your storage unit or set up a time to stop by and take a tour of our facility!
Got my storage unit in a breeze. Wally was very accommodating , highly recommend this branch.
NB
Nicole Batten
Dec 11, 2025
5.0
I have had a great experience with using Best Box. Their customer service is second to none.
DM
Denise Meeks
Dec 10, 2025
5.0
I've been with best box in Union Missouri for quite a few years now and Wally is amazing anything I need any anything at all all I have to do is call him and he does his best to do it
CP
Chris P
Dec 9, 2025
5.0
Wally was professional and efficient. He made rent in the unit extremely easy.
Frequently Asked Questions About Extra Space Storage
What storage unit size do I need?
The best way to determine which storage option is right for you is with our helpful Storage Unit Size Guide! It will help you estimate how many boxes and non-packed items, such as furniture and appliances, you can fit into each storage unit.
What type of storage unit do I need?
Many factors determine your best storage solution. Do you want the convenience of a ground-floor unit? Do your belongings need climate control? What about vehicle storage? We have online resources to help you explore these options to find your ideal storage unit.
What are your storage unit prices?
Monthly rates can be found online and vary by facility, unit size, features, and local market. Please use our site search tools to find pricing at a facility near you.
What's the difference between office, access, and gate hours?
The office hours are the hours of operation for the property. During these hours the Store Manager will be available to assist you with your storage needs or moving and packing supplies. The gate hours are the hours of the property, and when your unit can be accessed.
Can I buy boxes or other packing products from Extra Space Storage?
Extra Space Storage offers a variety of moving and packing supplies online and at local facilities for purchase.
Brand Certified Facts from Extra Space Storage
This information is certified by Extra Space Storage and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified March 01, 2026Yext Knowledge Graph
Address
Categories
Geo coordinates
Legal business name
Hours of operation
Phone number
Official website
Syndication Network
Approved business data is pushed to 100+ publishers, including: