Sheer strake the uppermost strake of the side planking of a vessel. (OED) Spirketting the planks running between the waterways and the sills of the ports. Water-way gutter along the side of the deck, forming a channel for water to run off. planked floor running the length of the ship. INTERNAL PLANKING Ceiling the internal planking of a ship. Limber strake the strake adjacent to the keelson. Bilge strakes planks used either outside or inside the bilges to re—inforce them. Shelf pieces stout fore-and—aft timbers fastened to the inside of a vessel’s frames as a support for the deck beams. Clamps thick horizontal planks supporting the ends of the beams, running close under each deck along the ship’s side from stem to stem Breast-hooks thick curved pieces of timber, or horizontal knees, bolted across the inside of the stem, strengthening the fore part of the ship and holding the bow and sides together. Crutches crooked timbers fitted horizontally in a vessel at the after-end, and bolted to the stern post and the vessel’s sides to give additional strength to the connection of these parts. They correspond to the breast-hooks at the fore-end. (OED) timbers fixed diagonally across the hold to support the beams. (OED) Treenails cylindrical pins of hard wood used in fastening timbers together. (OED) 285