If you are going to build a boat, you’ll want one worthy of your investment. read the reviews: best wooden kayak and stitch and glue kit.. What is lapstitch construction? clc’s exclusive lapstitch™ construction . patent no. 6,142,093 . the strength of the lapstitch™ joint is such that the designs.  8′ puddle duck racer one design racing sailboat based on bolger brick. developmental class, defined hull, unlimited sail rig and underwater fins..