Last weekend I finishes the insulation and support structure.
This weekend I finished the decking. It feels stiffer now and heaver too. The floor is now approximately 1 inch thick. Notice I support it now on the frame in three places. I may experiment with going back to two bars.
Hopefully the rest of the build goes faster. The walls don't need to support any significant weight so the framing will be lighter and should got fast. I intend to build the front wall with the door next then the top and sides.