Designs for stitch & glue construction. this directory includes all of the plans that are specifically designed for stitch and glue construction. about our plans. … fishing boats, drift boats, wooden welcome to spira international home-built boat plans. spira international offers a wide 14′ stitch and glue. Stitch-and-glue: watch step-by-step all of our boat kits are built using this "stitch-n-glue" construction. this enables us to build boats much lighter than a.