Originally Posted by Smitty
Build frames from plywood, but cut the rails & radiused corners seperately, or else you'll have tons of material waste. Lap-joint the corners & rails to assemble them into frames. Router grooves into the insides of the frames, staple-in the screen material, and cap with trim. Be sure to finish/seal them well prior to assembly. Attach with screws or fabricate some retainer clips into existing screw holes.
Wow... I understand what you are describing but that sounds like it might be out of my ability unless I buy some more tools...
I will have to look at it more closely, thanks! Jonathan