You must first determine what size of cornice box you want.

How to make a valance with foam board. I used an exacto knife and it cut like butter. Personally, i like to mount the cornice board as close to. Here is a valance idea that will not require you to spend time with a sewing machine.

The materials you will need are; The width is determined by the width of your window (outside molding to outside molding) measurement. The materials needed to make this.

No sew box style window valance. On this appropriately named queen valance, a polka dot fabric was used as a base layer. Cut out the length and width of foam board.

I bet even your husband or boyfriend can give this a go. How to make your own valance board Add 1.5 inches and mark that width on the foam insulation board with a pen.

Figure out the width that you want the cornice to be. Determine the height of your valance. Dress up your décor with this easy diy cornice board.

Measure the outside width of the window including the frame or wood trim around it. About press copyright contact us creators advertise developers terms privacy policy & safety how youtube works test new features press copyright contact us creators. This video show how to make a window valance with foam board.