A large number of aluminum single hull (monohull) boat designs (plans) that serve a variety of purposes. prices shown on this website are for plans and for a one time use of cad cutting files.. "building boats from glen-l plans is simple and straight forward…i honestly have never run into a problem, unless it was of my own making. follow glen-l’s plans and you can’t go wrong." dr. norman cove, bahamas "boat building is one of the few pursuits where utilization of the end product is as rewarding as its. Boat plans bruce roberts official web site offers custom boat plans and boat kits for steel boats or aluminum boat designs, cut to size boat kits, part built boats or complete boats. bruce roberts yacht designs offer boat building project management arrangements for boats built overseas at affordable prices. sailboat and powerboat building plans and kits available for building steel boats.