Service-bay businesses are easy to distinguish by their combination of a large vehicle bay with its own entrance and attached office space with a separate pedestrian entrance, usually both on the primary facade. Unlike service stations, where the bays are used for vehicle repair, these buildings typically housed businesses that utilized a service or delivery vehicle of some type.
Examples from the early 20th century were oftentimes existing commercial buildings with a garage added to the side with swinging doors; these buildings were commonly quite small. Later examples from the mid-20th century are larger with a fully integrated bay or set of bays that have overhead garage doors and larger office and public space.
All types of construction materials are implemented including concrete block, brick, and metal siding. They can be found in the smallest towns and larger urban areas throughout the state.