Actually, all my red oak was radio frequency/vacuum kiln dried. Thought that would have made things more stable. This post by far has the most checking of anything in my house. Maybe this was really green when put in the kiln. Could be as I understand these longer timbers were harvested late -- or so I was told. These timbers were milled with a Hundegger so tenons and mortises had the curved ends. Many of the tenons were not bored until put into the mortises and held by come-alongs -- then they were bored and pegged. Obviously not offset bores!
