How Do You Make A Custom Cornice?
A cornice board window treatment is a four-sided box without a bottom, with the wall acting as another side. The cornice board makes a decorative treatment that hides the top of curtains and hardware of window blinds. Such a window treatment can be made of many types of materials, but it’s usually made out of some type of wood. The cornice can be covered in wallpaper, paint and fabrics. The do-it-yourself handyman can build a cornice board window treatment with a few hand tools and a little effort. Measure from the left side to the right side of the window and add 4 inches, using a tape measure. Cut a 1-by 8-inch piece of lumber to the correct dimension, using a miter saw. Cut a 1-by 6-inch piece of lumber to the same dimension. Cut two pieces of 1-by-6-inch lumber to 7 1/2 inches long. Dry-fit the pieces together and pre-drill pilot holes for the finish nails, using a drill and a 1/16-inch drill bit. Apply a thin layer of glue along the edges one at a time. Nail them in place, using f
