I had planned to attach the floor with carriage bolts with wingnuts underneath. There was not enough clearance in the beam to turn the wings, therefore, Plan B. I used regular nuts. I can get at them just as easy as the wings AND can snug them with a box-end wrench. Yay for plans B.
This build is all about simplify! I used a water-based clear finish to cover the floor. It will take three coats with a 240 grit sanding between . A few extra holes were filled; one will probably never see them.
While the finish dries, I turned my attention to the sidewalls. I used a 2′ radius for the front top and a 4′ radius for the hatch. I think this will give me maximum space, easy curves and a nice overall shape.
I hope I’m not being too clever by one…. the 3′ at the top of the wall may be re-fashioned at some point to accommodate a pop-up roof. Or a lift up, foam entrance door, with almost 6′ headroom. Oh, the possibilities!!!