it's 2x2 1/8 inch square tube tongue and perimeter, the cross pieces are 2x2 1/8 inch angle.
solid frame, a tad warped.... but then so am i.....
dexter #9 axle de-tuned to 1500 lbs., set at 22.5 down angle.
probably should have started with 10.22, but it will settle some and i wasn't intent on a low rider anyway.