What is the minimum width of a runway?

The minimum width of a runway is established to ensure safe takeoff and landing operations for various types of aircraft. In many contexts, especially related to general aviation and regional airports, a runway width of 100 feet is considered the minimum. This width provides enough space for aircraft of different sizes, enhances safety margins during operations, and offers sufficient clearance for engine nacelles, wings, and other components during critical phases of flight.

Wider runways, such as those of 125 feet or more, are often designed for larger commercial jets, but the critical minimum standard in many regulations and guidelines remains at 100 feet. This standard takes into account factors such as aircraft maneuverability, crosswind landing effects, and the need for sufficient error margins during approaches and departures.