A rather plain barn that uses vertical boards. "Siding on barns is typically done very cheaply, just planks nailed on, no overlap, often gaps to let the air through. If it were horizontal, rain running down the side would enter the barn everytime drops fall from board to board. With the planks vertical, only the rain that hits a gap will go in."
I post a barn each Tuesday to support Barn Charm where pictures of many other barns are available.