A commercial lease contract is a legal contract used specifically to lease commercial space, such as offices, malls, warehouses, or other non-residential spaces. Unlike rental lease contracts, a commercial lease contract is usually between a landlord and a business, corporation, or LLC. Commercial leases often cover a much longer time period than residential leases; while an average residential lease may be for one year, commercial property is often leased for many years at a time. A commercial lease contract is usually much more detailed than a residential lease, therefore standard or generic commercial lease contracts are not often used. Commercial leases may include provisions regarding the use of common areas in a commercial property that may be shared between different leaseholders, such as bathroom facilities and parking lots. A commercial lease contract should clearly specify the responsibilities of both the landlord and the lessee especially if only a portion of the space is being leased.