Score the board with a utility knife.
Diy window cornice foam board.
Work your way to the ends of the box snipping and folding at the corners where necessary.
Cut out the length and width of foam board.
Measure the outside width of the window including the frame or wood trim around it.
Using hot glue secure 2 smaller pieces to each side of the front cornice board.
Feb 19 2019 explore poppy khan s board window cornice diy on pinterest.
Add 1 5 inches and mark that.
This is the length your cornice will be including the side.
How to make a cornice board valance from foam insulation 1.
Learn how to make a fabric covered window cornice.
On the other hand a cornice is a hard treatment.
Full post with supply list and.
Figure out the width that you want the cornice to be.
For my kitchen window i needed a 46 width.
Make the corners of your cornice by.
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.
Set a straightedge across the foam board at the desired valance height.
An easy window treatment that s not permanent and costs just a few dollars.
In this way cornices provide a more structured window treatment option than valences do while also creating interest through the fabric that you use.
Measure the length of your window and add a foot to that.
There is no hanging fabric.
Cut 4 small pieces from 1 3 inch piece of foam board and use them as stabilizers for the side of the cornice.
To cover the boards cut a piece of batting fabric 10 wider and 10 longer than your foam box including the returns.
See more ideas about window cornices cornice window cornice diy.
I used an exacto.
Following the directions of the foam core board tutorials i built my cornices from my foam panels.