Freeboard Created OnFebruary 6, 2018byCult of Sea You are here: Glossary F Freeboard < Back to Glossary IndexThe distance from the surface of the water to the main deck or gunwale. The distance from the water line to the top of the weather deck on the side. Related:Molded DepthDraft (Draught)GUNWALELoad on Top ProcedureDeckLife line