Purchase Your Cornice Boards Kits   

Decide which height then click on your width to start your purchase

See How to Measure Your Bay

See How Easy to Create your
Corner or Bay Bends

Window Bonnets sells a state of the art, light weight, do-it-yourself window cornice boards in a kit form. This is a professional full return cornice board.   No sewing or stapling is required to decorate the cornice.  The cornice boards are constructed prior to application of fabric using a low temperature glue gun.  They are, truly, the only solution for corners and bay window treatments. Our kits transform any room with your unique window treatments.

Manufactured from expanded polystyrene (EPS), our cornice boards kits are:

• durable, stable, flame retardant
• creates an incredibly strong bond
  when glued
• ultra light weight
• way easier than wood to hang

Each kit comes with window treatment instructions and a how to video, brackets for the valance, screws and anchors for hanging the cornice. The 32” Extension kits provide the ability to make cornices of any width. My corner piece, featured on the home page, is 17 feet wide. However, we know of a 50 foot cornice that has also been constructed.

Window Bonnets valance styles come in three heights, 9”, 12” and 15”. this variety provides the desired balance in rooms with high ceilings, low ceilings, small spaces and even RVs! Choose the height according to your personal preferences. To determine the correct width, measure the window opening and then add 1”-4” to the measurement. This will ensure the cornice returns hit the wall and balance the cornice to the window opening.  If blinds or curtains are to remain, measure their rod and add 1”-4” so the cornice returns go beyond the rod.

Our kits provide the best solution for all windows: office, kitchen, sliders, bedroom window treatments and those hard to work with bay window treatments. Our unique bay piece makes this cornice board type a piece of cake. There is a room in your home waiting to have a Window Bonnets cornice.  Try it, you’ll like it.

Between your imagination and the variety of fabric and accessory choices, there is literally an unlimited number of window treatments ideas possible.  So go out and enjoy the experience.  Buy and Create one NOW!