How do the rest of the post look?
There is one post about in the middle of the east outside wall that has about eight inches completely rotted away.
That part of the wall is not sagging though because it is supported by the top header boards and the upper loft in the same way that a bridge span is supported.
The rest of the post on the outside walls look a little rough but are not actually rotted very much.
I'm going to bolt a section of treated 2x6 on each side each of the outside post and put a piece of 6x6 into the gap on that one outside post.
I think the post on the outside walls may have been bought from a different company then the inside support post.
The inside post are a much darker color then the outside post and the inside post are not rotted at all.