tapered or wedge-shaped strips of wood glued around the inside seams of a guitar to add strength and stability where the sides meet the top and back; "kerfed" means articulated with closely spaced slits that render the wood strip flexible; also "lining".

When a piece of wood is cut on one side of with a number of deep, close-set parallel slits, the purpose of which is as to bend it. Used in the construction of rounded drawer-fronts, etc.

Longitudinal saw cuts or grooves of varying depths on the unexposed faces of millwork members to relieve stress, prevent warping, or to facilitate bending.