Renze
Super Member
We build them from IPE160 at least., with two longitudinal IPE160's welded over the full beam height, to prevent twisting. It starts twisting on the lower end of a broken fencepost.
If available, train rails are most popular around here: wear resistant and heavy, so a lot of torsion resistance. Therefor they dont need extra support, giving the dirt a free path to roll over the full width of the implement to fill ruts.
