Measure the length of your window and add a foot to that.
Build cornice box with foam core.
It also helps when you go to hang it because the cornice box will be much sturdier.
Following the directions of the foam core board tutorials i built my cornices from my foam panels.
My aunt made a cornice for my big bedroom window using the long side corner of a refrigerator box which happened to be just the right length.
Foam and fabric spray adhesive.
As easy as 1 2 3.
Finish the edges by folding the batting with a straight vertical seam in the corners.
We bought a sheet that matched the bedding too.
Figure out the width that you want the cornice to be.
Just assemble decorate and hang these beautiful light weight cornices to beautify any room.
If you had your wood pre cut at the hardware store the stability piece should fit pretty snug in between the two side pieces.
Cut out the length and width of foam board.
You could hot glue this if you wanted but i find hot glue is tough and melts the foam core.
A low temperature hot glue is an alternative.
Hot glue melts plastic foam so do not overdo it with the glue.
All about cornice boards and how to make your own diy cornice board i ve got a fun diy today that you may not even know you needed yet.
There are 6 styles for you to chose from and add a personal touch to your home without sewing.
We used one of the cheap white metal curtain rods and.
After the glue is dry trim your toothpicks and spray with tacky spray adhesive.
Make the corners of your cornice by.
When the window does not have a frame or trim around it measure.
The stability piece is to make sure your cornice box is sturdy and doesn t start morphing on you over time.
If your valance spans a large area bolster the back of the valance with a board made of a foam insulation scrap.
Our no sew cornice kits are perfect for the diy er and professional.
This is the length your cornice will be including the side.
Pull tightly ensuring that there are no wrinkles on the face of the cornice then staple on the interior edge of the cornice box.
I used an exacto.
Also part of the charm of lightweight cornice boxes is that the fabric will help hold it together once all is said and done.