Here is an idea that I would like to run by you. The pic shows a side view of how I would like to mount the floor to the frame. The floor will be constructed using Gorilla glue and the walls will be screwed to the sides of the floor as well as through the frame of the walls into the floors 2x4's. This should keep the top sheet of plywood from going anywhere. The bolts will go in from the bottom and stay in place using lock washers and some lock tite compound. I would like the camper to be removable from the trailer just in case.. I hope I explained that ok. Let me know what you think.