Didn't know that, but that makes sense. I used to sell logs to a sawmill that cut railroad ties. They wanted the logs cut at 9 feet, then the ties would be trimmed to length.Longer ties are used under switches, but there are probably thousands of normal ties for each longer one.
Bruce
I'd be curious how the OP is defining that term. Used to be, when people said "barndominium", they were talking about a post frame/pole building used as a residence. Recently, I've heard the term used to describe larger stick frame buildings, like the OP's, that just don't have a bunch of roof lines.Finally, not knowing where you reside at. If the parcel is in a zoned community, I'd be calling the building inspector to see if a 'barndominium' is even an allowed use. they are here but they must be constructed to BOCA specification. You need to inquire before you get red tagged.
Here is an example switch tie plan from Union Pacific. On this size switch, ties go up to 18 feet long.Didn't know that, but that makes sense. I used to sell logs to a sawmill that cut railroad ties. They wanted the logs cut at 9 feet, then the ties would be trimmed to length.