What’s included: (1) LH 8” FrameSaver Bottom (1) RH 8” FrameSaver Bottom Where does it go? -These pieces are fastened to the bottom of the door frame, adjacent to the sill system What does it do? -The composite bottom, which is finger-jointed to the wood, protects your door frame from warping and rotting -These bottoms finish and paint like wood, allowing you to match this piece to existing jamb finishes.