Diy Window Cornice Foam Board

There is no hanging fabric.

Diy window cornice foam board.

To cover the boards cut a piece of batting fabric 10 wider and 10 longer than your foam box including the returns. Set a straightedge across the foam board at the desired valance height. Measure the length of your window and add a foot to that. In this way cornices provide a more structured window treatment option than valences do while also creating interest through the fabric that you use.

How to make a cornice board valance from foam insulation 1. 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. I used an exacto. Make the corners of your cornice by.

Add 3 inches to each side of the measurement 6 inches total. Work your way to the ends of the box snipping and folding at the corners where necessary. Starting in the middle wrap the batting fabric toward the back as tight as possible and secure in place with nails. Instead a cornice is an upholstered board that is attached to the wall above your window.

Measure the width of the window that the cornice will hang over. Determine the height of the cornice and cut the foam board accordingly. Figure out the width that you want the cornice to be. On the other hand a cornice is a hard treatment.

Score the board with a utility knife. Measure the outside width of the window including the frame or wood trim around it. Add 1 5 inches and mark that. Cut a piece of foam board to the width of the window plus 6 inches.

This is the length your cornice will be including the side. This cornice is 11 inches high.