Intro: build a greenland kayak. this instructible will teach you how to build a 17 foot long greenland kayak that will weigh between 30 and 40 pounds and cost less. Tuition: $800. note: this is a five-day course ending friday afternoon. the “stitch-and-glue” construction method is the easiest way to build a boat, as tens of. 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.