Find Your Perfect Self-Storage Unit in Walnut

Security Features. Clean, Well-Maintained Facilities. Award-Winning Customer Service.

Show Size Guide

Self Storage Size Guide

Not sure what size storage unit you need? Use this guide to determine how big of a storage unit you'll need.

    • 5' x 5'

    • 5' x 10'

    • 5' x 15'

    • Storage Locker

      Lockers vary in size, but are usually about 5' wide, 5' deep, and approximately 4' tall (half the height of our regular storage units). They’re good for boxes, totes, seasonal decor, and other small items.

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 5' x 5' x 8' Mini Storage Space

      Up to 200 cubic feet of space.

      Residential: Boxes, small furniture, and miscellaneous items

      Business: Small amounts of inventory or files; holds approximately 35 file boxes

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 5' x 10' x 8' Storage Unit

      Up to 400 cubic feet of space.

      Residential: Contents of a studio or small 1 bedroom apartment

      Business: Office equipment and excess inventory

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 5' x 15' x 8' Storage Unit

      Up to 600 cubic feet of space.

      Residential: Contents of a 1 bedroom apartment, or garage items

      Business: Furnishing for 1 office space

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 10' x 15'

    • 10' x 10' x 8' Storage Unit

      Up to 800 cubic feet of space.

      Residential: Contents of a 2 bedroom apartment, or household equipment

      Business: Contents of 2 office spaces plus boxes

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 10' x 15' x 8' Storage Unit

      Up to 1,200 cubic feet of space.

      Residential: Contents of a 3 bedroom house or full apartment

      Business: Contents of 3 office spaces, plus boxes and equipment

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 10' x 25'

    • 10' x 30'

    • 10' x 20' x 8' Storage Unit

      Up to 1,600 cubic feet of space.

      Residential: Contents of a 4 bedroom house or a full garage

      Business: Contents of 3–4 office spaces, plus boxes and equipment

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 10' x 25' x 8' Storage Unit

      Up to 2,000 cubic feet of space.

      Residential: Contents of a 4+ bedroom house or a large garage

      Business: Contents of 4 office spaces, plus boxes & equipment

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 10' x 30' x 8' Storage Unit

      Up to 2,400 cubic feet of space.

      Residential: Contents of a 5 bedroom house, large furniture & household equipment

      Business: Contents of 5 office spaces, plus boxes & equipment

      Climate controlled units are temperature regulated. Non-climate controlled units have no temperature management. Drive-up access units have exterior doors that can be easily accessed by a moving truck or other vehicle.

    • 20' Parking

    • 26' Parking

    • 30' Parking

    • 10' x 15' Parking Space

      Fits most compact vehicles. Great for small cars, motorcycles, ATVs, etc.

      We recommend you measure your vehicle. The average maximum clearance is 7'8" wide by 7'8" high. Call your local CubeSmart facility to determine the exact clearance of your desired space.

    • 10' x 20' Parking Space

      Fits most full-size passenger vehicles. Store your SUV, pickup truck, classic car, family heirloom vehicle, etc.

      We recommend you measure your vehicle. The average maximum clearance is 7'8" wide by 7'8" high. Call your local CubeSmart facility to determine the exact clearance of your desired space.

    • 10' x 26' Parking Space

      For 26' class B recreational vehicles.

      We recommend you measure your vehicle. The average maximum clearance is 7'8" wide by 7'8" high. Call your local CubeSmart facility to determine the exact clearance of your desired space.

    • 10' x 30' Parking Space

      For class A recreational vehicles, long boats, or trailers.

      We recommend you measure your vehicle. The average maximum clearance is 7'8" wide by 7'8" high. Call your local CubeSmart facility to determine the exact clearance of your desired space.

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Clean and convenient location. The staff are friendly and extremely helpful. Highly recommended.

—Claude F.

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People's Choice Stevie Awards 2018 Winner ISS Best of Business 2017 One of the most trusted names in self storage.
People's Choice Stevie Awards 2018 Winner ISS Best of Business 2017 One of the most trusted names in self storage.
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Car Storage Locations in walnut, CA

Book a car storage unit today and get 1 month rent free. We offer the lowest prices in Walnut, California and no credit card is required.

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Clean and convenient location. The staff are friendly and extremely helpful. Highly recommended.

—Claude F.

See All Customer Reviews

Reserve Online Today To Lock In Deal

Up to 15% Off & First Month Free †

Not sure what size you need? View our Size Guide.

Our most popular unit size is Medium, but don't worry, you can change sizes later.

0.73 miles

Small Storage

Prices from

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Medium Storage

Prices from

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Large Storage

Prices from

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Vehicle Storage

Prices from

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Available Storage Unit Sizes:

Small Medium Large Parking

As low as

$298


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 

We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 
Units available for reservation; no credit card information required.
10 foot by 17 foot Storage Unit

10'x17'* Storage Unit

Outside Drive-Up Access

$350.00 $297.50

$350.00 in store
$297.50 online

15% Off

10 foot by 25 foot Storage Unit

10'x25'* Storage Unit

Outside Drive-Up Access

$411.00 $369.90

$411.00 in store
$369.90 online

10% Off

15 foot by 20 foot Storage Unit

15'x20'* Storage Unit

Outside Drive-Up Access

$478.00 $406.30

$478.00 in store
$406.30 online

15% Off


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 
How big of a storage unit do you need?

Our size guide can help you figure this out. Don't worry; you can change sizes at the store if needed.

Medium is our most popular size in Diamond Bar.
Show Size Guide

2.94 miles

Small Storage

Prices from

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Medium Storage

Prices from

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Large Storage

Prices from

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Vehicle Storage

Prices from

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Available Storage Unit Sizes:

Small Medium Large Parking

As low as

$236


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 

We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 
Units available for reservation; no credit card information required.
10 foot by 18 foot Storage Unit

10'x18'* Storage Unit

Outside Drive-Up Access

$278.00 $236.30

$278.00 in store
$236.30 online

15% Off

10 foot by 20 foot Storage Unit

10'x20'* Storage Unit

Outside Drive-Up Access

$278.00 $250.20

$278.00 in store
$250.20 online

10% Off
& Half Off First Month

plus Half Off First Month

10 foot by 22 foot Storage Unit

10'x22'* Storage Unit

Outside Drive-Up Access

$303.00 $257.55

$303.00 in store
$257.55 online

15% Off

10 foot by 25 foot Storage Unit

10'x25'* Storage Unit

Outside Drive-Up Access

$331.00 $297.90

$331.00 in store
$297.90 online

10% Off
& First Month Free

plus First Month Free

10 foot by 30 foot Storage Unit

10'x30'* Storage Unit

Outside Drive-Up Access

$348.00 $313.20

$348.00 in store
$313.20 online

10% Off

10 foot by 38 foot Storage Unit

10'x38'* Storage Unit

Outside Drive-Up Access

$410.00 $369.00

$410.00 in store
$369.00 online

10% Off


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 

14.32 miles

1372 East 5th Street, Ontario, CA 91764 1372 East 5th Street
Ontario, CA 91764

Up to 10% Off & Half Off First Month

Star rating 4 out of 5 Reviews

Small Storage

Prices from

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Medium Storage

Prices from

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Large Storage

Prices from

--

Vehicle Storage

Prices from

--

Available Storage Unit Sizes:

Small Medium Large Parking

As low as

$166


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 
Units available for reservation; no credit card information required.
10 foot by 15 foot Storage Unit

10'x15'* Storage Unit

Outside Drive-Up Access

$184.00 $165.60

$184.00 in store
$165.60 online

10% Off
& Half Off First Month

plus Half Off First Month

Units available for reservation; no credit card information required.
10 foot by 20 foot Storage Unit

10'x20'* Storage Unit

Outside Drive-Up Access

$236.00 $212.40

$236.00 in store
$212.40 online

10% Off
& Half Off First Month

plus Half Off First Month


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 

16.01 miles

3915 Green River Road, Corona, CA 92880 3915 Green River Road
Corona, CA 92880

Up to 15% Off & First Month Free

Star rating 4 out of 5 Reviews

Small Storage

Prices from

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Medium Storage

Prices from

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Large Storage

Prices from

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Vehicle Storage

Prices from

--

Available Storage Unit Sizes:

Small Medium Large Parking

As low as

$464


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 

We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 
Units available for reservation; no credit card information required.
10 foot by 30 foot Storage Unit

10'x30'* Storage Unit

Outside Drive-Up Access

$516.00 $464.40

$516.00 in store
$464.40 online

10% Off


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 

18.93 miles

Small Storage

Prices from

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Medium Storage

Prices from

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Large Storage

Prices from

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Vehicle Storage

Prices from

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Available Storage Unit Sizes:

Small Medium Large Parking

As low as

$322


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 

We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 
Units available for reservation; no credit card information required.
10 foot by 25 foot Storage Unit

10'x25'* Storage Unit

Outside Drive-Up Access

$358.00 $322.20

$358.00 in store
$322.20 online

10% Off


We'll work to find space for you. Let us call you to help you find your solution.
Find Space for Me 
Walnut, California Storage Facility Features*:



CubeSmart locations offer a variety of storage spaces such as personal storage, mini storage and commercial storage. Reserve a space today.
*Available at select storage facilities.

Find All Storage Facilities Located Closest to Walnut, California

Thanks for visiting CubeSmart's Walnut location!

america has almost as many cars as people, and that can lead to crowded garages and driveways. when you have more cars than places to keep them, choose a storage solution that protects your investment and come to cubesmart in Walnut. Make room in your garage or driveway while taking care of your second car by parking it somewhere secure. With outdoor storage for short stays, covered parking that keeps the weather from your car and fully enclosed garage units for complete protection, you have plenty of choices.


CubeSmart is more than just a place to park your car. It's a full-service storage facility with outstanding security features and conveniences that make it easy to reach your storage unit when you need it. The CubeSmart facility in Walnut offers gated access and around-the-clock video recording. You also gain drive-up access to your car for easy loading and unloading. Make your next vacation a breeze by keeping your beach gear in your convertible or storing your ski equipment in your truck. When you're ready to go, just drive away to fun! With room for every make and model, the spacious units let you store everything from a classic compact car to a rugged SUV.


We know you have options when it comes to self storage in the Walnut area. That's why we want you to know about all of the great things CubeSmart has to offer, the combination of which can't be found anywhere else. Our storage units are cheap when you consider the amenities we provide like convenient access and security features. In addition to clean storage facilities and friendly managers, you'll enjoy more free services than ever before – we even provide photocopying!


Looking for convenient self-storage in Walnut? We're committed to providing customers with customized, hassle-free storage options at affordable rates. CubeSmart's aim is to help make storage, regardless of the need, as easy as possible.


So go ahead and compare our prices to the following storage companies also servicing the Walnut area:

  • Brea Canyon Road Co Llc
  • Extra Space Storage
  • Public Storage
  • Self Storage At A
  • Valley Relocation & Storage
  • Westward Storage Park

At CubeSmart, we're certain you'll find great deals on a variety of storage solutions.