Chad,
Not trying to split hairs here, but I did not say they needed an engineer to design a fix, only that I needed more engineering info for that suitation (IE dead load of floor and lag bolt size/sheer strength.)
A jack stud would be OK in my opinion too, however, if they go ahead with what is depicted in that photo of the 4x4 with one lag bolt, I would want more info as to what I stated. IMHO
