LOA (Length Overall) is the maximum horizontal distance between the foremost part of the stem (bow) and the aftermost part of the stern of a boat. Primarily used for determining mooring, docking fees, and transporting, it typically represents the total length of the hull, though it may or may not include bowsprits, swim platforms, or rudders.

Key Aspects of LOA:
Measurement Scope: Historically, it excluded protruding bowsprits or rudders, but modern usage often includes any fixed, permanent structure extending beyond the hull.

Docking Purpose: Marina operators frequently use LOA to determine slip size, making it essential to know if your bowsprit or tender is included.

Variations: It differs from LWL (Length on Waterline) and LOD (Length on Deck/Hull Length).

Regulatory Usage: LOA dictates the required safety equipment on board.