I am frequently emailed asking for the dimensions of the front bunk support posts, unless one has small children the top bunk is seldom used and the posts go missing along the way. Mine have been sitting on a shelf in the basement ever since I first cleaned the trailer just after purchasing it.
They are basically 30" long lengths of 1" outside diameter light tubing with brackets welded to them 24" from the bottom. Note the plastic cap on the top of the post.
Top Bunk Hinge Placement
When I had the upholstery replaced one of the dilemmas I had was how to put the hinges back in their original positions.
I don't have an actual template for the bunk base, I took these measurements from mine.
The base for the top bunk is 24" wide, the ends are cut at 7" from each end and fastened with hinges on the top surface to allow them to curl in when the bunk is down as the seat back.
The pattern could be made using the system I used to make the shelf over the rear table:
The bunk mounts 24" above the bottom bunk and fastens to the wall just below the window with special hinges. Apparently these hinges can be made by attaching a length of angle iron to one side of a stock butt hinge so they look like the picture above.