Abstract: A framing member of general U-shape includes spaced legs having inner generally parallel flanges each of which terminates in an inner penetrating edge. Each of the inner flanges and the joined leg portion defines an S-shape. Internal clamping members urge the inner flanges toward one another, causing the inner penetrating edges to penetrate into a protruding member so that the framing member encloses the protruding member with the penetrating edges hidden from view.