Hi Chris,

Historical variances are regional and site specific. Some states-municipalities are real supportive, other not so much. As a historical barn wright I see frames often that I'm told don't work or can't meet code, (bumblebees can't fly syndrome is what we call it in the trade.) Frame stood strong for two hundred year the way it was built, but now you can't build it that way because it isn't strong enough and will fall down? Consulting with one of the P.E. that are part of the TFG and have experience with historical timber frames could help. Give a call or email, should you need more info. Pictures would really help in understanding the frame better.

Regards,

jay