At a corner of a log cabin or log house, any one of several types of notches cut near an end of an exterior timber to form a rigid joint when mated with another appropriately notched timber set at right angles to it. See diamond notch, double-saddle notch, dovetail notch, half-dovetail notch, half-cut notch, halved-and-lapped notch, lap notch, log notch, round notch, saddle notch, single notch, single-saddle notch, square notch, V-notch.