This directory includes all of the plans that are specifically designed for stitch and glue construction. 16′ jimbo – garvey hull with center console :. Boat plans for a 18′ flats boat outboard garvey hull built in stitch and glue plywood.. Welcome to spira international home-built boat plans. spira international offers a wide variety of different power, 15′ stitch and glue sea kayak; 19′ garvey;.