Marine Surveyors Lexicon

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Floor Or Floor Timber


A transverse structural member lying across the keel and tying the frames on either side of the keel together. The central futtock or futtocks of a sawn frame, lying across the keel. Floor timbers join both sides of a vessel together and make up the substructure for external keel fastenings, engine beds, and mast steps.

A term common to wooden boat design and construction.