Home. about our plans & kits; grab your free guide! for a description of the boatbuilding methods used to build the boats in glen-l catalog this is the place. Boat plans catalog – 300 boats you can build! “building boats from glen-l plans is simple and straight forward inquiry that looks very possibly home built. Home | free boat plans | free model airplane plans | bulletin board free boat plans from "science and mechanics", "boat builder handbook" and other very old.