Back in 05 I drew this frame from his book:



If you change the depth from 22' to 16' the rafters will be lower and it will make the head room on the second floor lower.
Are you aware of that?

If you make the front post taller to make up the head room what are you going to do about the back rafters?
Are you going to change the roof pitch?

Jim Rogers

Whatever you do, have fun doing it!