For my kitchen window i needed a 46 width.
Diy window cornice foam board.
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.
Following the directions of the foam core board tutorials i built my cornices from my foam panels.
There is no hanging fabric.
Measure the outside width of the window including the frame or wood trim around it.
I used an exacto.
Cut out the length and width of foam board.
Make the corners of your cornice by.
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.
Full post with supply list and.
An easy window treatment that s not permanent and costs just a few dollars.
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.
This is the length your cornice will be including the side.
Instead a cornice is an upholstered board that is attached to the wall above your window.
Cut 4 pieces of foam board 3 inches wide and 11 inches or the height of your cornice tall.
In this way cornices provide a more structured window treatment option than valences do while also creating interest through the fabric that you use.
Figure out the width that you want the cornice to be.
Feb 19 2019 explore poppy khan s board window cornice diy on pinterest.
See more ideas about window cornices cornice window cornice diy.
Add 1 5 inches and mark that.
Measure the length of your window and add a foot to that.
Starting in the middle wrap the batting fabric toward the back as tight as possible and secure in place with nails.
Learn how to make a fabric covered window cornice.
Using hot glue secure 2 smaller pieces to each side of the front cornice board.