Office Hours
| Sunday | 9:30 AM - 4:00 PM |
| Monday - Saturday | 9:00 AM - 6:00 PM |
Access Hours
| Sunday - Saturday | 7:00 AM - 9:00 PM |
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Features & Benefits
Additional Self Storage is designed to provide a secure and convenient storage experience. The property is well-lit, ensuring visibility and safety at all times. On-site managers are available to assist and monitor the premises, adding a personal touch to our security measures. Access to the facility is controlled through gated entry, restricted to authorized individuals only. Each storage unit is individually alarmed for an additional layer of protection, and the entire property is under continuous video surveillance. These features work together to give you peace of mind while storing your belongings.
Added Value
Trucks Available to Rent
Month to Month Rentals
Free Reservations
Security
Video Cameras
Keypad Access
Electric Gate
Insurance Available
Individual Unit Alarms
Easy & Accessible
Online Account Management
Moving & Packing Supplies
Wide Aisles for Large Trucks
Storage Units
Interior Storage
Drive-Up Storage
Extra High Ceilings
Climate-Controlled
Business
Deliveries Accepted
Authorized U-Haul Dealer
Other
Clean Well-Lit
Resident Manager Onsite
Fully Fenced Property
RV Parking
Additional Self Storage Units
Reservations can be placed up to 7 days in advance without payment or deposit. You can provide proof of renters or homeowners insurance at the time of finalizing the rental, in person or by email.

Check Out What Our Customers Are Saying
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Amy Krull on 12/14/2025
Rented here for last 2 years. Operated like family run establishments; no rent hikes and very good maintenance. We have been impressed with maintenance; no signs of insects or rodents, or moisture issues.“
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Brenda Raleigh on 10/07/2025
I find them wonderful to work with. The property is kept clean and pest free, and pleasant in appearance. I love the flowers in the spring thru fall and then holiday at appropriate time. They always have supplies we may need and omg! a nice clean bathroom! Ihave stored here for a ridiculously long time and I don’t see that changing for any reason. Special thanks to Tony and Bryce. I always leave or hang up the phone with a smile!“
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Deno V on 11/07/2024
Called to get some general information regarding exact size of the unit. Tony was very helpful and took the time to answer my questions. Completed the online reservation. At the storage faculty completed the paperwork, given an access code and unit number. Tony stated if the unit wasn't large enough he could work with me.
Great place to do business with. Gald I chose Additional Storage.Additional Storage Facility Info
Our 503 self-storage location is conveniently located 3 blocks North of Padden Parkway on Highway 503 just north of Clark Public Utilities and across from the Goodwill Outlet Store Donation Center. Access to the facility is from 503 southbound.
Our managers can quickly help you determine the best size for your needs and your budget.
We are also a fully authorized U-Haul Dealer offering trucks, trailers, towing equipment, and a full selection of U-Haul boxes, shipping and packing supplies for your moving and storing needs. Click U-Haul Rentals to make an online reservation. Or click U-Haul Boxes to order your supplies online. You can have the supplies shipped right to your home or order online and pick up in our store. You can also make your U-Haul reservations by phone at 360-254-4101 (24/7)






