Glen L Marine

Glen-L Marine (officially Glen-L Marine Designs), founded in 1953 by Glen Lowell Witt in Bellflower, California, stands as one of the world’s most enduring and influential amateur boatbuilding enterprises, empowering thousands of backyard builders with detailed plans, patterns, and kits for over 300 small craft designs ranging from 8-foot prams to 45-foot cruisers. Initially a one-man operation in a home garage, Witt—a self-taught naval architect and former Douglas Aircraft engineer—pioneered stitch-and-glue plywood, frame-free fiberglass, and cold-molded wood/epoxy construction methods long before they became mainstream, publishing his seminal Boatbuilding with Plywood (1960) and launching the iconic Glen-L catalog that became a staple in garages across North America.