Originally Posted by Onyrlef
One caution first is be very careful when welding on a MH. There is an array of electrical items on the rig that can be severely damaged when current starts flowing through the chassis, not the least of which is the torqshift transmission. Otherwise check out Simpson Strong Tie at any hardware store, run a series of 12-18" heavy duty straps and secure them with wood screws.
Wow, wouldn't have thought of that with the welder. Thanks! Not sure what you mean by the Simpson products though. Do you mean span them across the gap between the aluminum joists? Otherwise, I would need joist hangars that are smaller than for a 2x4, and I didn't see those unless there is a product I missed. I have included a pic showing where the support needs to go, The aluminum joists are only 1.5" x 2". Any other help is greatly appreciated!