bmike: I have several timber framing books and a few guild publications, but not the one you suggested. Thanks for the link, I will see about adding this one to my collection.
mo: typical horse stalls are 10x10 to 12x12. I'm located in East TN.
TIMBEAL: I was planning on white oak for the frame, but we do have hemlock here. Yes, this would be a walk in pasture shelter, primarily to provide protection from rain in the winter, and also a little bit of wind protection. A couple of H bents, top plates, and some common rafters just might be the way to go.
