Storage Units at 26039 Maple Valley Black Diamond Rd SE
Maple Valley Mini Storage
26039 Maple Valley Black Diamond Rd SE, Maple Valley, WA 98038
Self Storage & RV Storage Maple Valley, WA
Welcome to Maple Valley Mini Storage! We offer one of the largest indoor/outdoor secure self storage facilities in King County, WA. We offer storage solutions to meet a variety of storage needs including indoor storage units and convenient drive-up access units that allow you to pull your moving truck right up to the door for easy loading and unloading.
Boat Storage
Our outdoor storage spaces can also be used for boats, trailers and other vehicles up to 45’ in length. Our wide aisles will make it easy to get your boat in and out of your slip.
Secure Maple Valley Storage
We’ve incorporated a number of excellent security features including video surveillance, gated and fenced perimeter and our personal dedication to provide secure storage facilities to our clients.
Customer Focused Service
That’s not just lip-service. We care about making sure you have the best storage experience possible. Let us prove it.
Moving Trucks for Rent
Many times needing a storage means needing a moving truck. We have that too! We’re a one-stop shop where you can rent a moving truck on-site.
We’re Here to Help
Our storage experts are here to help you find the right solution for all your storage needs.

More Great Reasons to Choose Maple Valley Mini Storage
Drive Up Access
All of our units are ground level, drive-up accessible, so you’ll be able to park your moving vehicle at the storage unit door for easy loading and unloading.
Moving Boxes & Supplies
Maple Valley Mini Storage also carries a complete line of moving boxes and packing supplies to keep your belongings protected while in transit and in storage. Our reinforced boxes range from small to large. We also carry specialty boxes for moving delicate items such as dishes, glasses, mirrors, and more. You may need packing supplies as well. We sell packing peanuts, bubble pack, packing tape, plastic wrap, and much more.
Rent Online
Find the perfect storage unit or RV space, fill in your information, sign your lease and head right to your new space. Whether you’re at home or on the go, the rental process can be done from any device.
Great Maple Valley, WA Location
We’re conveniently located on Maple Valley Black Diamond Rd SE (Hwy 169), just a half mile north of Kent Kangley Road.
Storage near Ravensdale, Covington, Hobart & Black Diamond
If you live in Ravensdale, Covington, Hobart, or Black Diamond, Maple Valley Mini Storage is conveniently close to you. We even have RV storage customers from as far away as Auburn and Renton!
Frequently Asked Questions – Maple Valley Mini Storage

Are there any sales on self-storage units in Maple Valley, WA?
Where can I find drive-up storage units in Maple Valley, WA?
Where can I buy moving boxes in Maple Valley, WA?
Where can I store a car in Maple Valley, WA?
Where can I find a moving truck for rent in Maple Valley, WA?
About Us
Maple Valley Mini Storage is located at 26039 Maple Valley Black Diamond Rd SE in Maple Valley, WA. Are you ready to make room for life? Give us a call or visit us today!
Office Hours
Access Hours
Property Features
- Secure Digital Access
- RV & Boat Storage
- 24-Hour Security Video
- Moving Boxes & Packing Supplies
- U-Haul Truck Rental Partner
- Clean Facility
- Secure Online Payment