We did the same for our small boat, using 3/16" plywood, some trim to hold the screen as described, and a horizontal cross-member to protect the screen a bit and as a handle. We also made a box frame to fill the top part, and put screen on that. And of course a screen for the front hatch.I cut a rings of plywood to shape, cut out the center, stapled screen to that, then screwed on some varnished trim on each side.
looking for low-buck solution to making a companionway screen.
Any insight / pictures or your solutions would be great.
thanks,