Select materials and collect key tools.
Building a window cornice box.
For my cornice boxes i had a depth of 5 on the window blinds and 5 5 on the sliding door vertical blinds.
Use a circular saw or table saw to cut out.
I cut my 1 x 8 common.
What trim if any do you want to use.
How to mount cornice box to wall.
Draw a box the length and height of your cornice on a piece of the mdf.
Custom build your own window cornices for one fourth the price of store bought design the cornice to fit your home.
To mount the cornice to the wall use heavy duty l brackets.
Wider drapes need more.
Then mark two pieces of.
Plan the look of your cornice.
Then starting in the top and middle of your board wrap your batting and fabric around the header and pin into place.
If you want a decorative edge on your cornice.
I highly suggest ironing your fabric first if there are any creases in it.
Using a square draw a straight line on the marks you made on the 1x8s.
How to build and install an upholstered window cornice box step 1.
For the front and sides make 45 degree miter cuts where they.
Most windows have a header above them which means there is solid wood all across the window opening which is perfect for attaching the l brackets.
How to build a window cornice overview for how to build a window cornice.
Cut the wood cornice pieces crown molding.
Diy wood window cornice box assembly step 1.
Download and print a cut list for building a window cornice.
We did this step before building the cornice box because it was easier to maneuver the front piece as just a board than when it had all other kinds of phalanges attached to it.
Follow the cut list to size the pieces.
When measuring the length.
The length of the returns sides on the cornice boards depends on the width of the drapes.
You will need almost one box for each board depending on the size of your cornice.
Verify this with your stud finder or locate studs to screw your brackets into.
Cut the wood using a circular saw.
I cut all the pieces for my cornice first.
Will you stain it or.