Exterior view of the Southside Storage facility

Storage Units in Columbia, MO

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Why rent a storage unit online?

Storing your stuff has never been easier, especially with Touchless Rentals^TM

Your local Storage Expert

What Not to Store in a Self-Storage Unit: 7 Items to Leave at Home

September 18, 2026 @ 12:00 AM

Learn which items should not be stored in a self-storage unit and how to keep your belongings and storage space safe in Columbia, MO ...more

$25 Referral Rewards Program

Know someone who could use a little extra space? Refer them to Southside Storage, and we'll thank you with a $25 reward! ...more

Online Storage Auctions

Bid on storage units online through our trusted auction partner, StorageTreasures. Browse available units, place your bids, and win great deals—all from your phone or computer. Auctions are live now, so don’t miss out! ...more