[Equest-users] Does anyone have the properties for a hollow steel beam ??

[John Aulbach]

I am trying to create a lofted glass roof held up by hollow steel beams (a nifty atrium in a swimming pool area at a condo complex !!). But I am no information on a hollow steel beam (about 2 x 4). Hollow.
Any suggestions ??
John Aulbach
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