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Extra Space Storage - 6139 South Miller Road #A, Buckeye, AZ 85326

Self Storage 25 - 600 Sq. Ft.
5/5 - 101 Reviews
Location:
6139 South Miller Road #A, Buckeye, AZ 85326
All units
Small
Medium
Large
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Units Availability
Small Storage Unit
10x9
Self Storage
90 Sq. Ft.
Climate-Controlled
$95/mo
Small Storage Unit
10x8
Self Storage
80 Sq. Ft.
Climate-Controlled
$72/mo
Small Storage Unit
10x5
Self Storage
50 Sq. Ft.
Climate-Controlled
$46/mo
Small Storage Unit
8x10
Self Storage
80 Sq. Ft.
Climate-Controlled
$72/mo
Small Storage Unit
7x13
Self Storage
91 Sq. Ft.
Climate-Controlled
$102/mo
Small Storage Unit
7x10
Self Storage
70 Sq. Ft.
Climate-Controlled
$61/mo
Small Storage Unit
6x10
Self Storage
60 Sq. Ft.
Climate-Controlled
$53/mo
Small Storage Unit
5x15
Self Storage
75 Sq. Ft.
Climate-Controlled
$65/mo
Small Storage Unit
5x10
Self Storage
50 Sq. Ft.
Climate-Controlled
$46/mo
Small Storage Unit
5x9
Self Storage
45 Sq. Ft.
Climate-Controlled
$42/mo
Small Storage Unit
5x5
Self Storage
25 Sq. Ft.
Climate-Controlled
$33/mo
Medium Storage Unit
20x9
Self Storage
180 Sq. Ft.
Climate-Controlled
$165/mo
Medium Storage Unit
10x18
Self Storage
180 Sq. Ft.
Climate-Controlled
$165/mo
Medium Storage Unit
10x15
Self Storage
150 Sq. Ft.
Climate-Controlled
$142/mo
Medium Storage Unit
10x14
Self Storage
140 Sq. Ft.
Climate-Controlled
$134/mo
Medium Storage Unit
10x13
Self Storage
130 Sq. Ft.
Climate-Controlled
$126/mo
Medium Storage Unit
10x10
Self Storage
100 Sq. Ft.
Climate-Controlled
$103/mo
Medium Storage Unit
9x13
Self Storage
117 Sq. Ft.
Climate-Controlled
$117/mo
Large Storage Unit
25x10
Self Storage
250 Sq. Ft.
Climate-Controlled
$200/mo
Large Storage Unit
20x30
Self Storage
600 Sq. Ft.
Climate-Controlled
$410/mo
Large Storage Unit
20x25
Self Storage
500 Sq. Ft.
Climate-Controlled
$354/mo
Large Storage Unit
20x15
Self Storage
300 Sq. Ft.
Climate-Controlled
$232/mo
Large Storage Unit
20x10
Self Storage
200 Sq. Ft.
Climate-Controlled
$191/mo
Large Storage Unit
10x30
Self Storage
300 Sq. Ft.
Climate-Controlled
$232/mo
Large Storage Unit
10x25
Self Storage
250 Sq. Ft.
Climate-Controlled
$200/mo
Large Storage Unit
10x20
Self Storage
200 Sq. Ft.
Climate-Controlled
$191/mo

Amenities

  • Climate-Controlled
  • Indoor
  • Retail Available
  • Onsite Manager
  • Contactless Renting
  • Security Camera
  • Gate
  • Parking
  • Online Payment

What customers are saying

5/5 - 101 Reviews

Read some helpful reviews of Extra Space Storage at 6139 South Miller Road #A, shared by real renters with genuine experiences and honest opinions.

This location provided me with the best service. Alice was quick to answer all my questions and even offered to make me a reservation so I could lock in the quoted price I was given while I took a few days to decide whether or not this was the right place for me. I'm glad I chose to stay as the facility is very clean, temperature controlled, and very accommodating. ... Read more
Sarah L. - 8 March 2026
Alice was so helpful when choosing my new storage unit. She was very informational and guided me every step of the way. All of my questions were answered and I felt very comfortable choosing this as my secure and safe storage. I highly recommended getting a storage unit here if you’re looking for one! ... Read more
kaitlyn t. - 5 March 2026
We decided to go in person instead of doing the unit online to compare sizes. Alice was great help showing us two different size unit and explaining the difference.The price was great. Also gave us a unit that was close to the door for my mom that is disabled, so she can access the unit easily. Would definitely recommend Extra Space storage on Miller Rd in Buckeye. ... Read more
Danell M. - 21 February 2026
I went yesterday to the extra storage to check it out and get familiar with it and I met Alice and she made the process so much easier she took me to my storage. She showed me how to open. It showed me the lock the key where the carts were she made everything so easy and the process was great. I still definitely recommend going over there. I made a great choice and while she’s in the office. She makes herself very available to assist you in your needs or just assistance. Thank you, Alice Preston Your Truly Amazing ... Read more
Sandra S. - 18 November 2025
Fred T. - 12 November 2025

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Frequently Asked Questions

There is a wide array of amenities available for the storage units that Extra Space Storage - 6139 South Miller Road #A has to offer. These amenities include Climate-Controlled, Indoor, Retail Available, Onsite Manager, Contactless Renting, Security Camera, Gate, Parking and Online Payment. Most of these amenities can prove to be very useful depending on what you need to store. For example, climate-controlled units can come in handy for keeping sensitive items, drive-up access can make your loading and unloading process easier, and extra security measures will ensure your items are kept safe at all times.

The storage units offered by Extra Space Storage - 6139 South Miller Road #A can satisfy all of your storage needs. Different sizes here range from 25 to 600 square feet. You can go for smaller units if you don't have a lot of items to store, while choosing a larger space is recommended in case you need to store a lot of furniture, bigger items or even vehicles.

The unit size that you should choose obviously depends on how much stuff you need to store. On the one hand, you should think of smaller units (5'x5' or 5'x10') as closets – they can be used to store chairs, lamps, moving boxes and sports equipment, along with smaller pieces of furniture, books and documents.

On the other hand, the 10'x10' and 10'x15' spaces are good for storing larger items of furniture, bicycles and a larger number of possessions. If you need even more space, then 10'x20' and 10'x30' units can easily accommodate the contents of an entire 3- or 4-bedroom house.

Storage units offered by Extra Space Storage - 6139 South Miller Road #A come at a variety of prices, starting from $33 per month for typically smaller units. However, larger spaces can set you back up to $410 a month.

We know that when it comes to self storage, there is nothing more important than quickness and accessibility. Drive-up access is an extremely convenient amenity, as you can park your vehicle right next to your unit, making it significantly easier to load and unload the items you will use storage for. However, drive-up storage units tend to be outdoors, so you might consider indoor storage spaces with climate control if you're looking to keep temperature-sensitive items in peak condition.

Yes, you might, depending on what you need to put in storage. Climate-controlled spaces keep temperatures and humidity levels consistent all the time, which means they are perfect for storing sensitive items. Seeing that a whole host of things can be damaged by varying temperatures and excessive moisture, many people choose to rent climate-controlled units for personal items such as documents, photographs, paintings, collectibles, electronics, wooden furniture, antiques and even vehicles. If you're looking to store such items that are valuable to you, consider renting a climate-controlled unit!