I'm planning to build a camper. Saw some used trailer frames on craigslist. I'm concerned that I might buy a frame that I won't be able to use.
about, You'll want a frame that is free of rust through spots. Surface rust can be sanded and painted. Also, you'll also want to find out when the bearings and seals were replaced last. I don't know how large of a camper project your planning. Just be sure to get one big enough based on GVRW= Gross Vehicle Weight Rating. The weight of the camper material plus the trailer weight, and then get a little higher GVWR, rating of the frame. Good Luck!