Self-storage facilities rent space on a short-term basis (often month-to-month, though options for longer-term leases are available) to individuals (usually storing household goods; nearly all jurisdictions prohibit the space from being used as a residence) or to businesses (usually storing excess inventory or archived records). Some facilities offer boxes, locks, and packaging supplies for sale to assist tenants in packing and safekeeping their goods, and may also offer truck rentals (or may allow free use of a truck for a new tenant).
Most storage facilities offer insurance for purchase; also, the lessor may be covered by their own insurance policy (if such policy has coverage for items stored off the premises of the insured) or may purchase insurance to cover the items (which the facility may offer as a service through a third-party carrier, and in some cases may require the lessor to purchase as a condition of rental).
The rented spaces are secured by the tenant's own lock and key. Unlike in a warehouse, self-storage facility employees do not have casual access to the contents of the space (and, thus, the facility is generally not liable for theft). A self-storage facility does not take possession or control of the contents of the space unless a lien is imposed for non-payment of rent, or if the unit is not locked the facility may lock the unit until the tenant provides their own lock.