Strake

A strake is part of the shell of the hull of a boat or ship which, in conjunction with the other strakes, keeps the sea out and the vessel afloat. It is a strip of planking in a wooden vessel or of plating in a metal one, running longitudinally along the vessel's side, bottom or the turn of the bilge, usually from one end of the vessel to the other.

The word strake also refers to:

• a straightedge used for levelling a bed of sand, or striking poured concrete or plaster level with the edges of the formwork or mould into which it has been poured. A strake used for flooring or paving work is often called a "screed".
• a shaped piece of wood used to contour or profile the shape of a mould, as for a bell.