Trailer is a HF 48 x 40
48x40x12 box on top of the trailer
topped off with a roof top tent.
Estimated weight of 270-300 empty.
Here's a picture to give you guys an idea of what I'm thinking. But mine will be smaller and lighter weight.
I was able to get the floor almost completely done I just have to cnc the top side for the T-nut pockets.
The plan right now is to make the box from 3/4 Baltic birch plywood. It will be pocketed out as shown to reduce weight. My calculations for the floor was that I saved 15 lbs by pocketing the floor as shown. The floor ended up weighing 19lbs. If I were to to it over I think I could get it closer to 15 lbs but I would have to be careful to not punch holes in the floor.