
Log cabin construction requires some sort of notching at the ends of the logs where they are to be stacked to form the corner joints of the "crib." The Scotch-Irish immigrants learned the craft of log construction from settlers who brought the techniques with them from Sweden and Finland. The Nordic cabin-builders used two very similar methods. The simpler method is the saddle joint, which needed few tools and but a little practice; the more complex method, fully-scribed saddle joints, required more tools and greater skill and was not used in the Backcountry. (Fully-scribed saddle joints bring the logs into full-length contact, eliminating the need for chinking.) Saddle notches could be cut with only an axe, a mallet, and a chisel. This greatly reduced the need to carry tools into the wilderness, which had great appeal to the Scotch-Irish who were moving rapidly into the Backcountry in the 18th century.
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