Building A Window Cornice Box

Custom build your own window cornices for one fourth the price of store bought design the cornice to fit your home.

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. Measure the interior width of the window and add four inches to the overall measurement. I cut all the pieces for my cornice first. For the front and sides make 45 degree miter cuts where they.

To mount the cornice to the wall use heavy duty l brackets. Then mark two pieces of. 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. Draw a box the length and height of your cornice on a piece of the mdf.

Using a square draw a straight line on the marks you made on the 1x8s. I highly suggest ironing your fabric first if there are any creases in it. How to build a window cornice overview for how to build a window cornice. Cut the wood cornice pieces crown molding.

Then starting in the top and middle of your board wrap your batting and fabric around the header and pin into place. 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. Select materials and collect key tools.

Verify this with your stud finder or locate studs to screw your brackets into. Diy wood window cornice box assembly step 1. When measuring the length. What trim if any do you want to use.

If you want a decorative edge on your cornice. Download and print a cut list for building a window cornice. How to build and install an upholstered window cornice box step 1. Follow the cut list to size the pieces.

How to mount cornice box to wall. 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. Use a circular saw or table saw to cut out. If you plan to paint your cornices poplar and aspen are.

Wider drapes need more. Cut the wood using a circular saw. Will you stain it or.