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