The outside and inside casing of the vessel.
·noun The act of splicing slivers. ·see <<Plank>>, ·vt, 4. II. Planking ·p.pr. & ·vb.n. of <<Plank>...
Webster's Dictionary of the English Language
This is termed ceiling of the ship. ...
The Sailor's Word-Book
Such are the wales, the plank-sheer, the garboard-strakes, and the like. ...