The DecraMold 1/2 in. x 3-1/8 in. DM 7 Solid Pine Casing is used around doors and windows to cover the gaps between the frames and walls. olid Pine DM 7 Casing is the finishing touch on any window and door. Perfect as a decorative accent, this kit includes 2 side pieces, 1 header, 2 rosette blocks and 2 base blocks. Color: Unfinished.