I helped by putting in the bulkheads. The bulkheads are the pieces of wood in the middle of the boat. There are three of them spaced out in the boat's inner hull. They are for support so that the boat doesn't crush. They give the boat a v-shape. To build the bulkheads, you had to trace them on plywood with a stencil. Then we had to cut them out and shape them to the right size.
