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20x40 Storage Units for Sale Online

Bear Cave Storage offers 20x40 storage units providing 800 sq ft of indoor space with 10-foot ceilings. Ideal for vehicles, boats, jet skis, furniture, and business inventory. Located in Stewartville and Rochester, MN, these extra-large units feature drive-up access and 24/7 security.

20 x 40 x 10 Storage Unit

Our Range of Products

20 x 40 x 10 Storage Unit

20 x 40 x 10 Storage Unit

  • 800 sq ft with 10-ft ceiling height
  • Drive-up access for easy loading
  • 24/7 security for peace of mind

Frequently Asked Questions

How big is a 20x40 storage unit?

A 20x40 storage unit measures 20 feet wide by 40 feet long, totaling 800 square feet of floor space. With a 10-foot ceiling height, it provides ample room for large vehicles like boats and RVs, multiple cars, full household contents, or substantial business inventory — making it the largest unit size Bear Cave Storage offers.

What can I store in a 20x40 storage unit?

Is the 20x40 storage unit indoors or outdoors?

What security features are included with the storage unit?

How does online rental and payment work?

Where are Bear Cave Storage's 20x40 units located?

Are there discounts available for longer rental commitments?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Residential & Household

Residential & Household

Store furniture, appliances, and seasonal items while decluttering homes or managing a move or renovation.

Vehicle & Watercraft Storage

Vehicle & Watercraft Storage

Secure indoor storage for cars, motorcycles, boats, jet skis, RVs, and trailers protected from weather year-round.

Business Inventory

Business Inventory

Ideal for businesses needing extra space to store equipment, stock, documents, or seasonal inventory off-site.

Seasonal Storage

Seasonal Storage

Free up space at home or work by storing seasonal gear, holiday items, and recreational equipment off-season.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Homeowners & Businesses Choose Bear Cave Storage

Extra-Large 800 Sq Ft Indoor Units

Our 20x40 units offer 800 sq ft of protected indoor space — large enough for boats, RVs, multiple vehicles, or a full household of furniture.

24/7 Security & Drive-Up Access

Every unit is secured around the clock and accessible via convenient drive-up access, so loading and unloading is fast and hassle-free.

Flexible Online Rental & Payment

Reserve and manage your unit entirely online with flexible monthly, 6-month, or 12-month payment plans — including discounts for longer commitments.

Reserve Your 20x40 Storage Unit Today

Submit the form and our team will confirm availability, pricing, and move-in details for your preferred location within one business day.

Contact Us Today

For immediate assistance, feel free to give us a direct call at (507) 533-6185. You can also send us a quick email at sales@bearcavestorage.com.