Cornerstone Self Storage FAQs

We offer indoor, outdoor, and vehicle storage units in a range of sizes—from small 10×10 units to large spaces for RVs, boats, and trailers. All units are ground-level for easy access.

We’re conveniently located just off Highway 10 in Sauk Rapids, MN, with easy access from St. Cloud, Sartell, and surrounding areas.

Prices start at $75/month and vary based on unit size and type. We offer competitive, transparent pricing—you’ll pay the same as new customers for the same unit, with no surprise rate hikes.

No deposit is required except on our Large RV Storage Units, which is $100.

Not at all. All rentals are month-to-month, so you can store with us for as long or as short as you need.

Monday through Friday, 9 AM to 10 PM. Saturday and Sunday by appointment only.

You can access your storage unit daily from 6 AM to 10 PM, including weekends and holidays.

While we do not currently offer climate-controlled units, our indoor units provide protection from rain, snow, and direct sun. Many customers successfully store sensitive items in these units.

You can reserve online 24/7 or call our team during business hours for personal assistance.

Your rent will be pro-rated based on your move-in date. There is also a one-time $25 admin fee that includes your high-security lock to use while you rent from us.

No. We pride ourselves on honest, transparent pricing and your rate won’t increase after a few months like many competitors. The only up-front charge is a one-time $25 admin fee, which includes your high-security lock to use while you rent your storage unit.

We set all customers up with auto-pay for convenience. You can update your payment info at any time via your online account.

Drive-up access lets you park your vehicle right at the door of your unit, making loading and unloading easy.

No need! We provide a high-security combination lock, included with your one-time admin fee. It’s easy to set your own code, and the lock is yours to use for the duration of your rental.

Once you complete your rental, we’ll send your gate code and unit details. Our app even opens the gate automatically when you arrive—hands-free access for your convenience!

No. All move-outs are processed as of the first of the month.

We require 15 days’ written notice before your planned move-out. You can submit this through your online account or by visiting our contact us page to send us an email.

Simply empty your storage unit, sweep it clean, and leave the lock on the door. Then give us a quick call to confirm—we’ll inspect the unit and close out your account.

Absolutely. If your storage needs change, we’ll help you upgrade or downsize to a different unit, based on availability.

Absolutely. We offer indoor and outdoor storage for the following:

• RVs
• Boats
• Campers
• Trailers
• Snowmobiles
• ATVs and more

Yes, we perform seasonal pest control treatments including spraying for spiders and Asian beetles.

We take your security seriously and have the following:

• Gated entry with personal access codes
• Optional app-based entry that opens the gate when you arrive
• 24/7 video surveillance with 25+ cameras
• Motion detectors and bright facility lighting

We recommend the following:

• Using pallets or shelves to keep items off the floor
• Plastic totes to guard against moisture
• Avoid storing sensitive or irreplaceable valuables

Condensation can occur due to concrete sweating, especially during warmer months. Keeping items off the floor is the best protection.

Insurance is not required but is highly recommended. You can use your own policy or opt into affordable coverage from our third-party insurance partner. Cornerstone is not responsible for lost, stolen, or damaged property.

Yes. Prohibited items include the following:

• Hazardous or flammable materials
• Liquids, explosives, or weapons
• Illegal substances
• Live plants or animals
• Heirlooms or valuables with sentimental value

Please refer to your lease for full details.

Call us at 320-250-8588 or email us to check availability, reserve a unit, or ask questions. We respond quickly to calls and emails.