Diy Window Cornice Foam Board

For my kitchen window i needed a 46 width.

Diy window cornice foam board.

Add 3 inches to each side of the measurement 6 inches total. Cut a piece of foam board to the width of the window plus 6 inches. Cut out the length and width of foam board. In this way cornices provide a more structured window treatment option than valences do while also creating interest through the fabric that you use.

Starting in the middle wrap the batting fabric toward the back as tight as possible and secure in place with nails. First you need to measure the width of your window and decide how deep you need to make your cornice board and how tall you want it. On the other hand a cornice is a hard treatment. Work your way to the ends of the box snipping and folding at the corners where necessary.

Figure out the width that you want the cornice to be. Following the directions of the foam core board tutorials i built my cornices from my foam panels. There is no hanging fabric. Add 1 5 inches and mark that.

Make the corners of your cornice by. This is the length your cornice will be including the side. I used an exacto. How to make a cornice board valance from foam insulation 1.

Set a straightedge across the foam board at the desired valance height. Measure the width of the window that the cornice will hang over. Measure the length of your window and add a foot to that. This cornice is 11 inches high.

Determine the height of the cornice and cut the foam board accordingly. Measure the outside width of the window including the frame or wood trim around it.