Building A Window Cornice Box

If you want a decorative edge on your cornice.

Building a window cornice box.

How to mount cornice box to wall. How to build a window cornice overview for how to build a window cornice. Wider drapes need more. Cut the wood cornice pieces crown molding.

Select materials and collect key tools. Using a square draw a straight line on the marks you made on the 1x8s. Will you stain it or. Download and print a cut list for building a window cornice.

What trim if any do you want to use. Draw a box the length and height of your cornice on a piece of the mdf. If you plan to paint your cornices poplar and aspen are. The length of the returns sides on the cornice boards depends on the width of the drapes.

Cut the wood using a circular saw. Follow the cut list to size the pieces. Verify this with your stud finder or locate studs to screw your brackets into. I highly suggest ironing your fabric first if there are any creases in it.

Measure the interior width of the window and add four inches to the overall measurement. Use a circular saw or table saw to cut out. 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. To mount the cornice to the wall use heavy duty l brackets.

When measuring the length. Custom build your own window cornices for one fourth the price of store bought design the cornice to fit your home. Diy wood window cornice box assembly step 1. For the front and sides make 45 degree miter cuts where they.

How to build and install an upholstered window cornice box step 1. Then starting in the top and middle of your board wrap your batting and fabric around the header and pin into place. You will need almost one box for each board depending on the size of your cornice. I cut all the pieces for my cornice first.

Design elements within your home should dictate the wood type molding style and. For my cornice boxes i had a depth of 5 on the window blinds and 5 5 on the sliding door vertical blinds. 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.