I would like to have someone out there comment on the origin of this type of construction. I know of 2 examples here in Dundas County, Ontario Canada, one (a small barn) is devoid of vertical timbers in the exterior walls. The planks are held in place with hand made nails and exhibit circular saw marks dating it in this region to about mid 1800's, while the other a school building built in 1867, has a normal timberframe covered with the vertical planks.
