Attachment 101179Attachment 101180

Some more photos, since you like traditional Japanese, hence timber-framed, buildings. I built this barn for my wife, a broken-back salt-box. The frame has very simple joinery, through tenons, wedged and pegged. The floor joists sit on the bents, instead of being mortised. My neighbor cut the frame to my design. Once it was up, everything was square, level and plumb, and I could life every other stick on my own to finish it. Of course I would up with wicked tendonitis, but it healed.

Metal roofs will hold snow depending on the aspect, pitch, and color. Doors are better situated at the gable ends.