One time I bought a camper. The camper was a little big for my truck and it made me worry about driving it to Colorado AND taking it offroad. So I made plans to design another one.
Started with some plywood.
I began the frame with 2x4's to make a solid base.
Then I framed the back. I switched to 2x2s after the base to try and save some weight.
Side walls I made slanted so I could have more room on the bottom and then less area up top to reduce wind resistance while driving.
Installed a fridge and a stove.
Started framing the sides with 1/2" plywood.
Finished the siding.
Primed the siding.
after I had what I needed I took the old camper to the dump.
Started insulating. I had some rolled insulation so some of the walls are rolled and some are 1.5" polystyrene. I got some insulating duct tape to keep any air leaks out.
I ended up painting the sides with a deck covering. Loaded up all my stuff and gave it a test run.
AWAY WE GO!
Here is a little time lapse of the camper coming down.