Net Rentable Area
(Same as Rentable Area). The area (square footage) for which rent can be charged. Generally it is the gross area of the full floor less the area of all vertical penetrations (elevator shafts, stairwells, mechanical shafts etc.) Rentable area can be measured in many ways, but the most common measurement for office buildings is according to BOMA standards. Net Rentable area includes the tenant's premises plus an allocation of the common area directly benefiting the tenant, such as restrooms, common corridors, mechanical and janitor's rooms and the elevator lobby on the tenant's floor.