Office Hours
Monday - Friday 10:00 AM - 3:00 PM
Saturday - Sunday Closed
The office is closed for federal holidays
Access Hours
Monday - Sunday Open 24 Hours
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Climate-Controlled Units in Box Elder, SD
Discover the ideal storage solution in Box Elder, SD, where more space means more possibilities for your home, business, and adventure gear. Our facility offers a premium lineup of storage options, including shop-style spaces with power and heat, perfect for small businesses, hobbyists, and large-format storage needs.
Whether you’re storing RVs, boats, vehicles, or personal belongings, you’ll enjoy affordable monthly rates, climate-controlled units, and versatile layouts designed to accommodate everything from seasonal décor to commercial equipment. With 24/7 security, 7-day access, and an on-site manager, you get peace of mind paired with convenience and flexibility. Experience elevated storage that works as hard as you do, and unlock a whole new level of space and freedom.
Top Features & Amenities
- 24/7 Facility Access
- Indoor RV/Boat/Vehicle Storage
- Climate-Controlled Storage Units
- Heated Shop-Style Units (Power Available)
- Drive-Up Access
- Secure, Fenced & Gated Facility
- 24/7 Security Monitoring & Cameras
- On-Site Manager
- Wide Drive Aisles for Easy Maneuvering
- Variety of Unit Sizes Available
- Clean & Well-Maintained Property
- Dollies & Handcarts Available
- Secure Online Rentals & Bill Pay
Drive-Up Storage Units & Indoor RV, Boat, and Vehicle Storage at 2120 N Elk Vale Rd in Box Elder, SD 57719
At B-21 Storage, we’re proud to serve the growing communities of Box Elder, Rapid City, Rapid Valley, and Black Hawk, SD with modern storage solutions designed for convenience, flexibility, and peace of mind. Just minutes from Ellsworth Air Force Base, Western Dakota Technical College, and close to legendary destinations like Mount Rushmore, The Black Hills, and The Badlands, our facility is perfectly positioned for locals, students, military members, travelers, and outdoor enthusiasts.
Trusted Customer Feedback
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Nikki Gast on 10/13/2025
Exceptional Experience — Clean, Safe, and Hassle-Free!
I couldn’t be more impressed with this storage facility. From the moment I arrived, it was clear how much pride the owners take in maintaining the property. The entire site is spotless — the units are clean, the grounds are well-kept, and everything feels organized and cared for.
James is incredibly responsive and genuinely invested in making the rental process smooth and stress-free. Any questions I had were answered quickly and thoroughly, which gave me total peace of mind.
Security is clearly a top priority here. The well-lit property, secure access, and overall sense of safety made me feel confident storing my belongings.
Renting a unit was quick and easy — I was able to complete all my documents quickly online. If you’re looking for a storage solution that’s clean, safe, and professionally managed, this is the place. Highly recommend!“
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Sanne Onestein on 09/15/2025
Nicest storage management I have ever encountered. I have had both regular and climate controlled here. Both were great!“
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brian buck on 09/04/2025
These guys are great. They keep a very clean and safe environment. I recommend this place to anyone looking for a storage place.