To drive a nail at a slant with the initial surface in order to permit it to penetrate into a second member. Tongued and grooved. See Dressed and matched. Tread. The horizontal board in a stairway on which the foot is placed.

Starting a nail at an angle or slant in one framing member and driving it through into a second (usually perpendicular) framing piece.

To drive a nail in at a slant. Method used to secure floor joists to the plate. Not acceptable for securing joists flush to a header or beam.