What are the dimensions of a garrison flag?

The dimensions of a garrison flag are defined as 20 feet in hoist and 38 feet in fly. This size is specified for use in military installations, particularly for display on weekdays and in situations where a larger flag is appropriate to convey pride and presence. The garrison flag is often used for ceremonial occasions and represents the unit's readiness and spirit.

The other options do not correspond to the standard dimensions of a garrison flag, which are set to ensure uniformity across military services and installations. The smaller sizes listed serve different purposes, such as the storm flag or post flag, but the garrison flag specifically designates the larger size suitable for more formal displays.