Mini Storage Plus Clean, secure, and conveniently located self-storage units in Friendsville, Oliver Springs, Rockwood, and Harriman. Our state-of-the-art facilities and exceptional customer service make self-storage simple and stress-free. With our easy-to-use software, you can rent a unit and access your account from any phone, tablet, or computer — anytime, anywhere. Enjoy a fully contactless rental experience. 👉 Book and pay online today!