I need to weld a support for a swim deck on my house boat. The swim deck is 4 feet deep and has a little too much give when standing on the edge. Here is the question - would a piece of 1x3 tube steel (.065) stood on edge and run at a 45 degree angle (a knee brace) be stronger or weaker than a 1.5" x 1/4" angle iron run in the same configuration? Any advice on which way I should go?Thanks,Dave