>>1139819Trailers are built like shit, whether it's a utility trailer or camper/RV.
Electrical is always shit. Run a main wire down the corners, then scotch-lock the lights to that. Give it a few months of bouncing down the road, that scotch-locked wire breaks and you get pulled over for inop taillights. Gut that, pull good shit, and use good crimp connections or solder/heatshrink.
Same for electric brakes - good ground, and good waterproof connectors as needed. Strain-relief/protect those wires.
Pull a 120v circuit while you're at it. For a small enclosed trailer, you can just run a single circuit to a few outlets; don't need to install a breaker panel unless you need serious power (more than 5kW) in/on the trailer, or you have a need to isolate certain circuits.
Hit the frame with some sort of rust protector or undercoating.
If you bought it insulated, it's probably cheap EPS foam board in there. Get that out and put the foil-backed iso board in its place, use Great Stuff foam to fill in the gaps and lock the isoboard in place. Close up the drafts and higher R-value in the walls/ceiling. Spray foam under the floors is a real nice upgrade if you're using it in the winter.
Furnace is nice, in the winter.
I've built 3 trailers now. My 14ft enclosed was my 2nd. This weekend i'm installing some outlets in a 45ft'er.
