how to make a window cornice board

How to Make a Window Cornice Board

By Emily Hernandez
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Transforming a plain window into a stylish focal point is easier than you think, and a window cornice board is an excellent way to achieve this. This decorative element not only enhances the aesthetic appeal of your room but also serves functional purposes like hiding unsightly window hardware and providing a subtle light diffusion. Let's dive into the world of DIY window treatments and learn how to make a window cornice board that's both beautiful and practical.

Before we begin, let's clarify that a cornice board is a type of window treatment that conceals the top of your window and often extends beyond the window frame, creating a luxurious, tailored look. It's typically made from wood, foam, or MDF and covered with fabric to match your room's decor. Now, let's get started with the step-by-step guide to create your perfect window cornice board.

Gather Your Materials and Tools

Before you embark on this DIY project, ensure you have all the necessary materials and tools at hand. This will save you time and prevent any inconvenience during the process.

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Here's a list of materials and tools you'll need:

  • 1x6 or 1x8 pine board (length depends on your window size)
  • 1/4" or 1/2" plywood or foam board for the cornice face (optional)
  • Fabric of your choice (enough to cover the cornice board and have some extra for wrapping)
  • Upholstery foam (optional, for a softer, more luxurious look)
  • Spray adhesive
  • Staple gun and staples
  • Miter saw or handsaw
  • Drill and screws
  • Sandpaper (120-grit)
  • Tape measure
  • Pencil
  • Hammer
  • Nails (if using plywood or foam board)

Measure and Cut the Board

Begin by measuring the width of your window. This will determine the length of your pine board. For a more dramatic look, you can extend the cornice board beyond the window frame by a few inches on each side. Once you have your measurement, use a miter saw or handsaw to cut the board to size.

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Next, decide on the height of your cornice board. A standard height is around 6-8 inches, but you can adjust this to suit your preferences and window size. Mark the height on the board and cut it using your miter saw or handsaw.

Create the Cornice Face (Optional)

For a more decorative and finished look, you can add a cornice face to your board. This is an optional step, but it adds depth and dimension to your window treatment. Cut a piece of plywood or foam board to match the height of your cornice board. You can also cut it into a simple curve or shape for added elegance.

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If using plywood, you can attach it to the cornice board using screws or nails. If using foam board, use spray adhesive to attach it to the cornice board. Allow the adhesive to dry completely before proceeding.

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Prepare the Fabric

Before you begin wrapping your cornice board, lay out your fabric and measure it against the board to ensure you have enough coverage. Most fabrics will require you to wrap the cornice board and have some extra fabric for wrapping around the back.

If you're using upholstery foam for a softer look, apply spray adhesive to the back of the foam and attach it to the cornice board. Allow the adhesive to dry completely before proceeding.

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Wrap the Cornice Board

Begin wrapping the cornice board by placing it face down on your fabric. Start at one end and pull the fabric taut as you wrap it around the board. Use a staple gun to secure the fabric to the back of the board, pulling it taut as you go. Work your way around the board, stapling as you go.

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Once you've stapled the entire board, you can trim any excess fabric. Fold the fabric over the edges of the board and staple it in place for a clean, finished look. If you've added a cornice face, make sure to wrap the fabric around it as well, stapling it in place.

Add Finishing Touches

Sand any rough edges of the cornice board to prevent splinters or snags in your fabric. You can also paint or stain the board to match your room's decor, if desired.

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To attach the cornice board to your window, you can use brackets, screws, or command strips. Make sure to measure and mark the placement of your brackets or screws before attaching the board to the wall.

Install Your Cornice Board

With your cornice board complete, it's time to install it above your window. If you're using brackets, attach them to the wall using screws, making sure they're level and evenly spaced. Place the cornice board onto the brackets, ensuring it's centered and level.

If you're using screws or command strips, follow the manufacturer's instructions for installation. Make sure the cornice board is secure and won't wobble or fall.

Style Your Window

Now that your cornice board is installed, it's time to style your window. You can add curtains, valances, or other window treatments to complement your cornice board. Consider the height of your cornice board when choosing the length of your curtains or valances.

Step back and admire your handiwork. Your window cornice board not only adds a touch of elegance to your room but also serves a practical purpose by concealing unsightly window hardware and providing subtle light diffusion. With a little time and effort, you've transformed a plain window into a stylish focal point.

Don't be afraid to get creative with your window treatments. Experiment with different fabrics, colors, and styles to create a look that's uniquely yours. Happy crafting!

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