Posted 2/23/2013 18:06 (#2920852 - in reply to #2920353) Subject: RE: Can you help me crowbar?
Sac & Story county IA
I did a door with a piece of steel about that size. 38 foot between supports. I used that piece because it was at the salvage yard the day I stopped.
I am not at all qualified to do the math on that deal. My gut feeling says it could span more than that. Real engineers hate guys that say "that looks about right".
Square vs. rectangle? Tube bridge physics.
