Units up to 1250 sq feet!

Hurry! Limited Space Available!

Check out our comparison Chart!

Fit a Class-A Motorhome?

Yes! Even for the Large Top-End Luxury Coaches!

See The Amazing Possibilities!

Business Friendly!

Conference Room - Computers - Internet Access
Available in the Leasing Office during normal Business Hours.

Bolster Your Business!

Want your garage back?

Rent one unit and you can reclaim your garage, shed, yard, etc.

Reclaim Your Garage!

Relocate Your Business Storage Needs!

Professional Contractor Supply Storage.

Call Us; We Can Help!


Sizes, Options, & Pricing

Unit SizeSFt.Price per Month *Door size
15x30450 $55010x10
15x40600 $62510x10
15x45675 $67510x10
20x40800 $95012' wide by 10' tall
20x501000 $1,04912' wide by 14' tall
20x50 exec.1000 $1,22512' wide by 14' tall
15x801200 $1,17510 by 10
25x50 exec.1250 $1,45012' wide by 14' tall

The 25x50 and 20x50 executive units have Insulated Automatic doors with Openers,
optional Electricity** (one 110 circuit and one 220 circuit) and optional Gas Heat***.
All smaller sized units have one 110 circuit. 

Electricity** and Heat*** are optional, and an additional charge.

The 20x50 & 25x50 executive units have individual meters and charges are based on meter readings.
Other units are charged a flat monthly rate of $30 per month.

*A Northglenn use tax will be collected each month in addition to the rental price.

Call 303-694-6495 for details!

XXL Pic from Drone

Click Image for HD Version!

XXL Pic from Drone

Click Image for HD Version!

XXL Pic from Drone

Click Image for HD Version!

Storage Unit Comparison Chart

Hours of Operation

We look forward to seeing you!

Leasing Office

It's Monday 9:04 PMWe're closed

Monday9:30 AM — 5:30 PM
Tuesday9:30 AM — 5:30 PM
Wednesday9:30 AM — 5:30 PM
Thursday9:30 AM — 5:30 PM
Friday9:30 AM — 5:30 PM
Saturday9:00 AM — 5:00 PM

Automatic Gate

It's Monday 9:04 PMWe're open

Monday4:30 AM — 11:00 PM
Tuesday4:30 AM — 11:00 PM
Wednesday4:30 AM — 11:00 PM
Thursday4:30 AM — 11:00 PM
Friday4:30 AM — 11:00 PM
Saturday4:30 AM — 11:00 PM
Sunday4:30 AM — 11:00 PM


EXTRA LARGE Self Storage

Everything for your large vehicle, large item storage needs.

XXL Storage Units

We offer heated Indoor storage for Car Collections, Building Equipment, Contractor Storage, Charity Collection, and large item storage: Motor-homes, Trucks, Campers, Cabin Cruisers, Sailboats, etc.

Online Payment

Use your computer, phone, or tablet, to pay online any time of day or night!

Great Location

Located in Northglenn, XXL Storage offers proximity to Denver, without the hassle of down town traffic and tight spaces.


Our facility has the latest Digital Security Cameras, an Electronically Controlled Gate, Well Lit Buildings and Driveways, and we have Onsite Managers.

Northglenn XXL Storage Facility Video

Get a good feel for our facility!

Community Information and Blog

We are locally owned and operated and love to stay involved in our community!

Directions to XXL Storage


Read More

What is XXL Storage?

“Self-Storage on steroids” XXL Storage is a new concept in self-storage for the Denver Metro area, specifically the cities of Northglenn and Thornton. Unlike traditional self-storage, this[...]

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Chamber of Commerce Ribbon Cutting

XXL Storage is a new concept in self-storage for the Denver Metro area, specifically the cities of Northglenn and Thornton. Unlike traditional self-storage, this facility focuses on the storage needs [...]

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Contact Us!

Call us at 303-694-6495 or email us using the form.
We look forward to getting to know you!

Call Now ButtonCall Lynne!

Keeping ahead of COVID-19

While we navigate this unprecedented time, we hope you are well and safe. We also want to keep you abreast on how COVID-19 and the Stay-At-Home orders as directed by our County Health Department will affect our business. Lynne will continue to be available during regular business hours to accept phone payments, rent new units, discuss and process move outs, handle emergencies, etc. We appreciate any necessary conversations take place over the phone at 303-694-6495 or via email at xxl@coloradostorage.com. As always, you can continue to make payments through our website using your email address on file and your gate passcode to create an account. Access to your goods will remain unimpeded; our gate hours remain unchanged and barring delinquency, you will continue to access your unit. Should an emergency require your physical appearance, please call to schedule an appointment at which time a six feet margin of contact will be maintained. Thank you for your cooperation and help in stopping the spread of COVID-19.