Auto generated beams/ doubled floor joists


A_Moore
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Working on a plan... When I ran the build, framing, floor command, the I-joists were bound by doubled 2x12's below the 2nd floor walls. That's understandable, but I don't know if the two doubled 2x12's can support the 2nd floor/joists at the 24'-4-1/2" clear span (highlighted in attachment).

 

This may be more of a structural question. Any advice or input would be greatly appreciated.

 

Thanks,

Andrew

doubled 2x12 span.jpg

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The program knows nothing about structural requirements. That is for an engineer to calculate, or you to consult the span charts for your region from the building code. 

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That's fine, yet most municipalities will require any engineered material to have calculations passed in with the permit application before they'll approve a design. So unless you're an engineer, notate those items to be verified by others. A lot of lumberyards can get the calculations from their engineered material suppliers to submit. 

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