: I have joined the deck and hull and have not yet cut openings in the deck for
: hatches. The method described in Nick's book for making flush hatches
: requires access to the underside of the deck which is possible before
: joining. I am going to cut out a fore and aft hatch but I am not quite
: certain what is the best way to create the lip underneath the hatch.

You can make a lip out of marine plywood and glue that in, provided it will
conform to the curvature of the deck. Pygmy and CLC both join the deck first
and then cut hatches.