Thank you for the frame tubing dimensions! I'm laying out my frame right now for my all aluminum build and your frame design is really close to mine. I'm going with 2x3 but using .125 wall and plan on plates and gussets on all joints. My goal will be a lightweight design but still off-road capable as well.
What do you think this trailer will weigh in at when all finished without accessories?
I would highly recommend going to .25 wall, general rule of thumb double up material from steel, I guess it really depends on what you plan on doing, all done, around 1600-1700lbs.