Extra Space Storage - 8321 - National City - 20th St

525 West 20th Street , National City , CA 91950 (877) 449-1281

See all 3 reviews

Book Now

We are experiencing high demand in this area.
Make sure you reserve a unit for free today to hold a storage space.

  • 4' x 3' Locker

    1st Floor, Interior

    Discount Price

    $60.00

    Regular Price

    $63.00
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  • 5' x 8'

    5' x 8' Unit

    Interior, Upstairs (Access via Stairs)

    Discount Price

    $74.00

    Regular Price

    $78.00
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  • 6' x 8'

    6' x 8' Unit

    Interior, Upstairs (Access via Stairs)

    Discount Price

    $84.00

    Regular Price

    $88.00
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  • 6' x 8'

    6' x 8' Unit

    Interior, Upstairs (Access via Lift)

    Discount Price

    $85.00

    Regular Price

    $90.00
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  • 6' x 9'

    6' x 9' Unit

    Interior, Upstairs (Access via Lift)

    Discount Price

    $92.00

    Regular Price

    $97.00
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  • 8' x 8'

    8' x 8' Unit

    Interior, Upstairs (Access via Lift)

    Discount Price

    $103.00

    Regular Price

    $109.00
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  • 8' x 9'

    8' x 9' Unit

    Interior, Upstairs (Access via Lift)

    Discount Price

    $112.00

    Regular Price

    $118.00
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  • 5' x 17'

    5' x 17' Unit

    Drive Up Access

    Discount Price

    $130.00

    Regular Price

    $137.00
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  • 8' x 11'

    8' x 11' Unit

    Interior, Upstairs (Access via Lift)

    Discount Price

    $120.00

    Regular Price

    $126.00
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  • 8' x 12'

    8' x 12' Unit

    Interior, Upstairs (Access via Lift)

    Discount Price

    $127.00

    Regular Price

    $134.00
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  • 6' x 17'

    6' x 17' Unit

    Drive Up Access

    Discount Price

    $146.00

    Regular Price

    $154.00
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  • 9' x 12'

    9' x 12' Unit

    Interior, Upstairs (Access via Lift)

    Discount Price

    $138.00

    Regular Price

    $146.00
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  • 11' x 12'

    11' x 12' Unit

    Interior, Upstairs (Access via Lift)

    Discount Price

    $158.00

    Regular Price

    $167.00
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  • 10' x 17'

    10' x 17' Unit

    Drive Up Access

    Discount Price

    $230.00

    Regular Price

    $242.00
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  • 11' x 17'

    11' x 17' Unit

    Drive Up Access

    Discount Price

    $362.00

    Regular Price

    $381.00
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How it works

Reserve 1

Reserve your
storage unit for free

Facility 2

Visit the facility to finalize the rental

Move 3

Move-in!

Operating Hours

Office

Sun closed
Mon 9:30 am - 6:00 pm
Tue 9:30 am - 6:00 pm
Wed 9:30 am - 6:00 pm
Thu 9:30 am - 6:00 pm
Fri 9:30 am - 6:00 pm
Sat 9:00 am - 5:30 pm

Unit Access

Sun 6:00 am - 8:00 pm
Mon 6:00 am - 8:00 pm
Tue 6:00 am - 8:00 pm
Wed 6:00 am - 8:00 pm
Thu 6:00 am - 8:00 pm
Fri 6:00 am - 8:00 pm
Sat 6:00 am - 8:00 pm

Features and Amenities

  • Fenced and lighted
  • Video cameras on site
  • Vehicle requires insurance
  • Vehicle requires title
  • Handcarts available
  • Moving supplies for sale
  • English, Spanish speakers on staff
  • Email billing available
  • Accepts mail/packages for tenants
  • Auto-pay available
  • Vehicle must be running
  • Vehicle requires registration
  • Insurance required
  • Insurance available
  • Homeowners/renters insurance accepted
  • Cash accepted
  • Checks accepted
  • Allow 18-wheeler dropoff
  • 1% Military discount (active-duty)

Additional information

Customer Reviews

Leave a review

  • 5.0 of 5 stars

    riley silverman

    February 19th, 2025

    great on price

    ive had this storage before, shopped around a few months and had different facilities and iam now planning on returning for a long time period. a bit farther from my house but i do not mind taking the trip because the price is the best.

  • 4.0 of 5 stars

    Henry L Wallace

    September 12th, 2024

    Overall a good place

    I got locked in after hours. I had to leave my vehicle on the premises. I had to use the emergency exit too get out. A warning in writing would have gave me a better understanding of the dos and don'ts...

  • 5.0 of 5 stars

    Susana Avila

    July 21st, 2023

    Great place

    I love the place easy to use the Lyft and close to my storage unit. I will recommend this place

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