Barns: Single-pen Barn
The simplest and earliest type of log barn in southern Indiana consisted of a single room, or crib. Logs were hewn by squaring off two sides and interlocked at the corners through the use of square, half-dovetail, V, or other type of notching. The single crib is considered the basic unit from which other barn types evolved. Many barn builders and/or users expanded their barn’s capacity by building additional cribs, most typically with a passageway in between.
"The most common log barn consist of a single crib of logs, often surrounded by sheds of frame construction. Fifty-nine barns of this type have been located in southern Indiana. The average length of the log crib is twenty-one feet, six inches, the smallest being sixteen feet long and the largest forty-eight. The average width is eighteen feet, six inches, with the smallest thirteen feet and the largest thirty feet. Because most barns have frame sheds on all four sides their overall dimensions are considerably larger.