开云体育

Hi:

I would like to point out that the strength of a beam depends mostly on its height. Roughly the strength changes by the square of the height, so doubling the height quadruples the strength. So if you added a 1.5" box tube to the bottom of a 3x1.5" beam, it would be 4.5?/3? stronger or over twice as strong and stiff. The web adds very little to the strength of a beam since it is in a neutral stress area, neither tension or compression.

I would like to do this and move the axle lower, but we really don't have a problem, yet.

Best wishes, Carl.