The hull is assembled by riveting the planks together into two mirror-image halves. Begin riveting with the planks closest to the keel. Lay the #6 plank (the garboard) on top of the #5 plank. Both gains need to be on the underside of the planks. Line up the ends of the planks so that the last hole in the top edge of the garboard (the one closest to the end) is over the matching hole in the bottom edge of the second plank.