What is the minimum distance from the line used to determine FSD for exterior wall projections where the distance is 30 feet or greater?

In the context of fire safety in commercial buildings, the minimum distance determination for fire safety distances (FSD) is crucial for ensuring that structures comply with safety regulations. For exterior wall projections, when the distance from the line in question is 30 feet or greater, the code typically stipulates that the minimum required distance for such projections is 20 feet. This requirement is designed to minimize the risk of fire spread from one structure to another, providing a safer buffer zone.

Choosing a distance of 20 feet aligns with fire safety standards that aim to balance practical building design while maintaining safety objectives. It addresses the potential risks associated with exterior wall features, ensuring that they do not contribute to fire hazards while permitting a reasonable architectural flexibility in building designs. The other distances do not align with the established codes for this scenario in terms of ensuring adequate separation for fire safety.