What percentage of a large structure can a 200' preconnect cover?

A 200' preconnect is generally considered to be able to cover a substantial portion of a large structure, allowing for effective firefighting operations. Given the common practices and limitations in firefighting operations, a preconnect of this length typically enables access to various parts of the structure, but not all of it due to constraints like elevation changes, potential obstructions, and the strategic approach needed based on the layout.

In many scenarios, a 200' line can adequately reach around 50% of the area of a large structure, allowing firefighters to effectively engage in suppression efforts while still needing to have considerations for additional resources, such as additional hose lengths or other apparatus, to address further reaches of the building. This 50% coverage is pragmatic, as it accommodates the reality of operational needs in complex environments.

Understanding this limitation helps firefighters plan their operations effectively, ensuring they can cover critical areas of a structure while readying alternative approaches for reaching the remaining sections if necessary.