Gantry arrived faster than expected. Instructions were clear until the adjustment install, would recommend more detail with an actual picture or a 5 second vid of how it works. Gantry was a bit narrow, so I replaced the 8ft i-beam with a 12ft, 6x6 @15lbs per ft. i-beam.
Adjustment pins were 3/4 x 6 inch. They are a bit short as well. replaced with 9 inch pins All in all, very pleased with the adjustable set-up.