The Woodgrain Millwork 1-3/4 in. x 1-1/8 in. x 96 in. Primed Finger-Jointed Pine WG WDS1 Sill Nosing is used on exterior windows to help channel water from the window to the outside of the house. Primed Finger-Jointed Pine WG WDS1 Sill Nosing can be used to replace damaged sills on existing windows. Sill Nosing is important part of keeping your house safe from water. Color: White.