Wiktionary
self-storage
n. storage of one's goods in a rented commercial facility.
Usage examples of "self-storage".
Basically, I bid on the contents of self-storage lockers when the monthly payment's in arrears.
There on a stack of papers lay the answer to my prayers: a sheaf of documents, among them the receipt for Rich's payment to the San Felipe Self-Storage Company, dated Saturday, May 17.