I had some time and was able to put together the final three chicken run doors and as a bonus, a new door for the catio! The old door was a cheap screen door from the big box hardware store, and the screen would come out at the slightest breeze. So now there is a treated 2×4 frame with welded wire door on the catio. It needs paint, but it is a strong sturdy door now.

The catio has shifted slightly, and where I made sure the door was square, the opening was not. So we (my eldest helped), hung the door to swing in instead. It works and the gap is not big enough for a cat to squeeze through.