Welcome to
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.

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.
RV Storage in Maple Valley
We have over 300 RV storage spaces in a variety of sizes to fit your RV. And we make them affordable to fit your budget!
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.
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.
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!