I've wanted to get the generator out of the truck and onto a cargo platform on the back of the trailer for some time now. During our last trip, I noticed that the trailer came from the factory with attachment points for a cargo tray so I contacted my Jayco dealer and they got me a quote. $774 plus shipping and tax.....
I have the tools, so I roughed out a plan and had a mechanical engineer at work check the dynamic loading in Solidworks so I'm good to go.
Support bars are 2-1/2 x 1/8 wall square tube and the platform is
2-1/2 x .078 wall square tube, 1/2" expanded metal, and some 1/4" round bar set 1" above the deck for convenient tie-down points.
I threaded some holes in the bottom of the support brackets to remount the stabilizers.
Here is the result:
I can stand on it and jump up and down and it does not deflect any noticeable amount
Oh yeah, I spent about $200 on materials