Tom cat is a shoal draft catboat of plank-on-frame construction, but strip construction would do as well. skill level is advanced. sail area: 120 sq. ft. plan includes 9 sheets. and for a series of building images (cold-molded) taken at our woodenboat school, click this link:flickr tom cat.. The 22-foot cruising cat is built to the highest standards of wood construction. the hull consists of strip planks over a plywood mold, sheathed in a layer of xynol cloth and epoxy. this design was very popular on nantucket at the turn of the 20th century and into the early 1900s.. The galley is forward on the starboard side in the plans but was shifted aft to just inside the companionway. the head was aft on port where it remained but was expanded to occupy all the space between the centerboard case and the side of the boat. this had the effect of making that part of the boat something of a cave..