Shell plating

Shell Plating is the outer-most structure on the hull of a steel or [aluminum]] ship or boat. It is the structural element that renders the hull watertight.

Strakes

A strake is the name given to each line of planking in a wooden vessel.^[1] In modern ship construction it refers to the plating covering the hull, deck and bulkhead structure.

Keel : is a special strake of the Bottom plating extending from the centerplane outboard

Bottom : the Bottom Shell Plate strakes extend from the Keel to the Bilge.

Bilge : is the plating which transitions from the more-or-less horizontal Bottom Shell to the more-or-less vertical Side Shell and is generally curved. See also Chine (boating).

Side : is the plating which extends from the bilge stake(s) to the Shear Strake.

Shear : is a special strake of the Side plating. It is the strake that connects the Side Shell to the Strength Deck.

Stringer : is a special strake of the Strength Deck plating. It is the strake that connects the Strength Deck to the Side Shell.

Strength Deck : is a special deck. It is normally the uppermost continuous deck and forms the top flange of the hull girder. See Strength of Ships.