Diy Window Cornice Foam Board

Work your way to the ends of the box snipping and folding at the corners where necessary.

Diy window cornice foam board.

Measure the width of the window that the cornice will hang over. Make the corners of your cornice by. Score the board with a utility knife. Following the directions of the foam core board tutorials i built my cornices from my foam panels.

Add 3 inches to each side of the measurement 6 inches total. Instead a cornice is an upholstered board that is attached to the wall above your window. On the other hand a cornice is a hard treatment. This is the length your cornice will be including the side.

This cornice is 11 inches high. Determine the height of the cornice and cut the foam board accordingly. 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.

Starting in the middle wrap the batting fabric toward the back as tight as possible and secure in place with nails. How to make a cornice board valance from foam insulation 1. 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.

Set a straightedge across the foam board at the desired valance height. Measure the outside width of the window including the frame or wood trim around it. To cover the boards cut a piece of batting fabric 10 wider and 10 longer than your foam box including the returns. There is no hanging fabric.

Add 1 5 inches and mark that. For my kitchen window i needed a 46 width.