Lew Hodgett wrote :

Dig out a strength of materials text, learn and understand the
following:

I^3 = (bh^3)/12 + 1/2(Ad^2)

It's the basis of all beam design and application.
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"Bill" wrote:

So are you saying that you didn't need to look it up??? : ) I
trust you, I'm just curious.

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Alzheimers may be in my future but doesn't seem to have arrived yet.

Anyway, that formula was beat into me more than 50 years ago by
my structural prof who would begin his homework assignments with
"Gentlemen, put on your coolie hats and have fun tonight".

You don't forget that experience.

Have fun.

Lew