I know a carpenter who needed, IIRC, 14' walnut planks for some big tables he was making, and he had to go to Kentucky to get them. He said he could get them up to 12' long in Oklahoma all day long, but anything longer involved a road trip.Interesting. I’ve gotten walnut lumber from a sawyer in SW Missouri, who gets his lumber from the immediate area. He’s got a LOT of lumber, too.