In maritime terms, what does "length" refer to?

In maritime terms, "length" most commonly refers to the length overall (LOA) of a vessel. This measurement encompasses the total length of the boat from the forwardmost point of the bow to the aftermost point of the stern. It is an important dimensional metric used for various purposes, including determining the vessel's classification, dockage fees, and compliance with regulations regarding size and capacity.

The length overall provides a clear and comprehensive understanding of a vessel’s dimensions, as it accounts for any structural elements such as protruding fittings or extensions that may affect the vessel's footprint in the water. It contrasts with other measurements that may focus on specific parts of the vessel, such as the waterline or the hull length, which can give a misleading impression about the boat’s size and operational capabilities. Thus, length overall serves as the most relevant and universally recognized measurement in the maritime context.