In a previous post I mentioned that the seatback support cleats on the rear cabin wall were not substantial enough, and would need to be sistered.
It was a straightforward task. I made each sister cleat in two parts, partly because I had some short lengths of scrap cleat material and partly because I would not have to scrap a whole cleat if I messed up a bevel.
Here is the starboard sister cleat in place.
And here is the port sister cleat.
Now we have a really strong and wide ledge for the seatback panels to land on. Much better!