Originally planned as wallpaper border and decorative frames installed over a freshly painted living room wall, this project gains an upgrade with the addition of chair rail molding and a mirror over the fireplace. A little paint, wallpaper, and trim dramatically change the appearance and character of the room, picking up the colors in the furniture.
Make a temporary panel mock-up for your decorating elements using masking tape to simulate chair rail and decorative wall frames and to get a feel for the best elevation. Tape up a strip of wall paper border for effect.
Transfer measurements and positions for the decorative wall frames on the wall to guide actual installation. Remove the temporary tape and use a bar level to ensure lines are level and plumb for each panel.
Use a small paint roller and paint tray to apply paste activator to the wallpaper border to go above the decorative wall frames. Book the wallpaper, folding the pasted sides together for a few minutes to thoroughly moisten the adhesive.
Position borders at the appropriate pencil marks. Ensure the wallpaper pattern matches in each element of your decorative wall frames project. Press the border in place, removing air bubbles and wrinkles with a squeegee. Trim with a utility knife.
Make a work support system with a stop block to hold the wooden trim/molding for the decorative wall frames and ensure that pieces are cut to exact length. Lay the molding across saw horses and paint it before cutting.
Miter the ends of the decorative wall frame trim as required and cut the required lengths. Cut and miter the ends of the chair rail so that it fits together vertically on the inside corners of the room.
Position and secure the horizontal decorative wall frame trim to the studs with a nail gun. Glue the vertical pieces with construction adhesive and drive in nails at opposing angles for additional support.
Measure dimensions for a decorative wall frame above the fireplace surround. Cut the trim and add attractive plinth blocks to eliminate the need to miter the corners. Hang a mirror in the center of the frame as a focal point for the room.
Fill nail holes in the decorative wall frame trim. Apply spackling compound with your finger if the trim is to be painted, and then touch up with paint. If the trim is stained, use wood putty in the correct color.
Paste wallpaper inside the decorative wall frames and trim the overhang with a straightedge and utility knife. Remove air bubbles and wrinkles before the paper dries and ensure that the pattern matches in all wallpaper elements.