How to properly start a tiny house on wheels

This is how I was able to start a tiny house on wheels that would last a lifetime! So Getting the floor figured out was a bit of a struggle since the frame was that of an old bobcat with a lot of steel removed and repairs which left some slag that had to be ground off to accommodate the new wood framing for the floor.

Mocking up the wooden floor joists before the steel protection

Once the wood frame was in place I needed to keep the weather and critters out of the bottom of the floor so It was time for some sheet metal. I believe this cost me about 80 at the local lumber company here in Holly. I was initially going to use pressure treated lumber for the bottom but since I was using sheet metal on the bottom, I used #2 pine instead. I did however use galvanized nails since they will be exposed. The sheet metal was screwed down to the frame

Adding the rodent and road hazard sheet metal

Next step was to bolt the floor frame to the trailer with galvanized bolts, lock washers and nuts. Since the weight of the bobcat was so heavy and the trailer was used and abused, I needed to place solid wood shims between the floor frame and the steel to make sure I didn't have a bounce in the center and to keep the floor flat.

Bolting the wooden frame to the steel trailer

I ran the brake wires inside of the floor frame to keep them from being ripped off from any road hazards and to protect them from weathering. The brake and marker light wiring will be ran through the walls of the tiny house before I install the R-13 insulation.

Floor framing before foam insulation