For cedar strip construction forms are placed at 12" o.c. along a base (strong back) to maintain the boats shape during construction
Cedar strips are placed on the forms, most often they are stapled to the forms to secure them while the glue is drying, I will also clamp them to avoid the staple holes
6 pound fiberglass fabric and epoxy are commonly used on wood boats to add strength and waterproof them
Images from the construction progress of my Surf Wing Kayak
View above is of the bottom of the boats hull during the final application of a marine varnish over the epoxy to protect the boats finish from the suns UV rays