I would never use this style ever again! More of a pain in the behind. I would go the square tube route next time. 2x3 3/16 wall or something and lay it flat so its wider in the horizontal plane. For 169 bucks you could buy alot of square tube.
The main problem i had with the "fitted to the floor" style was that it fit like a square peg in a round hole. I spent more time complaining and massaging that i could have just welded in the tube and moved on and still gain the strength i was after.
