My thinking was that an I beam has 1 web and the rectangle tubing has 2-one on each side. So the tubing would be stronger. This application is for the rail/beam on a bridge saw. Approx. 14' long. supported on both ends. I don't want hardly any deflection in the z axis but more importantly none in the y axis. It has to cut in a straight line period. Again, it seems as if the rectangle tubing would be stronger, my thoughts.
Regards,
Doug |