I built a set of doors for my previous boat, an O'Day 23. They had lift off half hinges. The one thing I don't like about most doors is the hinges are screwed into the teak trim such that anyone with a screw driver can remove them. On the 23 I mortised the side sills and epoxied the hinges in. (Make sure you align them though!) I did the same to the doors. The solid inner panel was removable, but I never did make the screen or lexan panels for it.
The doors were lap jointed in the corners. The top was two thin boards that left a slot in between for the panels to slide in and out. Before assembly the inside edges were rabited (? A slot cut the length) to accept the panels and hold them in place. I lined the slots with aluminum U channel. Along the bottom outside edge I drilled a few weep holes so rain and such would not build up and overflow the inside edge.
For our current boat, a Catalina 30, I'm thinking of using the bottom hatch board and building the doors to fit on top. (Similar to the post with the picture of the 3 part door.) Two screw inserts in the hatch board slot on each side will hold the frame with the hinges. That way if needed I can remove the door and frame and return to the hatch boards if required. I'm also toying with getting a pair of solid brass door hinge from the Big Box store and cutting them in half. Glueing/brazing the pin in place in the bottom hinge pieces should make a usable half hinge for about $10, instead of the $50/side ($100 total) for the heavy chromed half hinges.
The doors were lap jointed in the corners. The top was two thin boards that left a slot in between for the panels to slide in and out. Before assembly the inside edges were rabited (? A slot cut the length) to accept the panels and hold them in place. I lined the slots with aluminum U channel. Along the bottom outside edge I drilled a few weep holes so rain and such would not build up and overflow the inside edge.
For our current boat, a Catalina 30, I'm thinking of using the bottom hatch board and building the doors to fit on top. (Similar to the post with the picture of the 3 part door.) Two screw inserts in the hatch board slot on each side will hold the frame with the hinges. That way if needed I can remove the door and frame and return to the hatch boards if required. I'm also toying with getting a pair of solid brass door hinge from the Big Box store and cutting them in half. Glueing/brazing the pin in place in the bottom hinge pieces should make a usable half hinge for about $10, instead of the $50/side ($100 total) for the heavy chromed half hinges.