Jerry Hey wrote:

Paul,  on the longer Schertz beams could I weld plates inside the beam
in the form of a  W truss to stiffen the beam instead of a strut brace?
   Jerry

Paul replied:

That would not help. Just make it 1/4 or 1/2 inch deeper.
The strength goes up with the square of the depth. A 1 inch deep
beam is 1. A 1.25 inch deep beam is 50% stronger. a 1.5 inch deep
beam is 125% stronger.

Fred O. wrote:

For a long beam where there is space below the beam for a good angle
would an end to end flat bar or cable in tension over a center post be
better than a strut braces in compression?

That is the precise area we need for installing radiators.

Paul Lamar
 
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