What does the abbreviation "S.O." refer to in construction documentation?

The abbreviation "S.O." in construction documentation typically stands for "Service Outlet." This term is widely used in electrical and plumbing plans to indicate a point where utility services like electricity or water are made available for use. Service outlets are crucial in design as they show where devices can be connected, ensuring that sufficient outlets are provided for functionality and code compliance.

Understanding this abbreviation is essential for interpreting plans accurately, as it directly relates to the practical aspects of construction, indicating where services will be incorporated into the structure. This knowledge aids builders, electricians, and other professionals in ensuring that the installations align with the designed infrastructure of the building.