Critique my design... 4x6 trailer with RTT

[McManusR]

I'm in the process of designing an "overland" trailer, and I'm looking for some feedback on my design so far (material choice and frame layout) as I want it to be durable, but not a PIG.

I don't plan on taking it anywhere crazy as I drive 2WD Tacoma so mostly gravel/forest service road travel. My goal is to have a self contained kitchen, on-board water, with a rooftop tent. I plan on possibly adding a removable rack for our kayaks over the tent. (not in the drawings) I plan to use Timbren axel-less set up in either 2000# or 3500# with brake (We tend to travel lots of highway miles so I like the idea of having brakes, which would be an upgrade as our current trailer does not have them)

My first trailer was built on a 5x8 bolt together frame, and is 90% wood construction, but for this I'm looking to jump into framing the structure in metal which is new for my hobby skill set. My brother in law is a welder, but he mostly builds from engineer drawings so he is limited help for the design and I was looking at buying a welder so I'm not 100% reliant on him.

Not sure on the skin material yet, I like the idea of painted aluminum but need to find a source.

Let me know if you have any questions, or feedback. Thanks!

 

[old_CWO]

It still looks overkill to me. Maybe 2" square .120 for main frame rails? Center cross members can be angle vice tube, and I would only use two. With your tongue design I would also consider square instead of rectangle tube. If you think about it, a junky Carry-on angle iron trailer would easily do what you're asking. You probably only need modest improvements over their design to achieve a significantly stronger trailer that doesn't weight a ton.

Looks like fun, enjoy.