How to Make a Window Cornice

Are you tired of looking at your boring, plain windows? Do you want to add some flair and style to your home decor?

How to make a window cornice can dramatically enhance any room’s aesthetic appeal, adding style and structure to your windows. This DIY project is not only cost-effective but also allows you to customize the design to fit your personal taste and the decor of your home. A window cornice is a stylish way to conceal curtain rods and hardware, offering a polished look to your window treatments.

Through this guide, we will walk you through the steps to design, build, and install your own window cornice, transforming your space with a touch of custom carpentry that is both simple and rewarding to achieve.

What are the Benefits of a Window Cornice?

A window cornice not only adds visual interest and elegance to your room but it also offers practical benefits. Here are some of the advantages of adding a window cornice to your home:

• Enhances the Appearance of Your Windows: A window cornice can add depth, texture, and style to otherwise plain windows. It serves as a decorative element that can elevate your room’s overall aesthetic.
• Conceals Curtain Rods and Hardware: A window cornice is a great way to hide unsightly curtain rods, brackets, and other hardware. This creates a seamless and polished look for your window treatments.
• Makes Windows Appear Larger: By extending the cornice beyond the width of the window frame, you can create the illusion of a larger window. This is especially helpful in smaller rooms or for windows that are not proportionally sized.
• Can Be Customized to Fit Your Style: With a wide variety of fabric options, trimmings, and design choices, you can create a window cornice that complements your personal taste and home decor.

These are just some of the many benefits of adding a window cornice to your home. Now, let’s dive into the steps to make your own!

What Will You Need?

Before getting started, you will need to gather the necessary materials and tools to create your window cornice. Here is a list of what you will need:

• Measuring tape
• Pencil
• Level
• Saw (jigsaw or circular saw)
• Drill with drill bits
• Screws
• Wood glue
• Sandpaper
• Paint/stain
• Paintbrushes/rollers
• Fabric (amount will vary depending on window size)
• Staple gun and staples
• L-brackets for installation

Once you have all the necessary materials and tools, you are ready to begin constructing your window cornice.

10 Easy Steps on How to Make a Window Cornice

Step 1: Measure Your Window

To begin, measure the width of your window from one outside edge to the other. Be sure to account for any additional trim or molding around the window that may affect the measurement. Next, measure the vertical distance from the top of your window to where you want your cornice to end.

Step 2: Plan Your Design

After obtaining your window’s measurements, sketch a basic design of your cornice. Decide whether you want a straight, simple box shape or if you prefer adding architectural interest with angles or curves. Consider the room’s existing decor and how the cornice might complement or enhance it. You can also decide at this point if you’d like your cornice to feature additional embellishments such as trim, molding, or decorative fabric.

Remember, the design and complexity of your cornice will influence both the construction time and the cost of materials, so plan according to your budget and skill level. Once your design is finalized, create a cut list for the wood components based on your measurements and design sketches. This list will guide your cuts and help ensure accuracy during the build process.

Step 3: Cut Your Wood to Size

Using the cut list you created from your design sketches, begin by cutting your wood to the specified dimensions. If your design includes straight edges, a circular saw or miter saw will make quick work of these cuts. A jigsaw may be more appropriate for designs that incorporate curves or angles.

Always remember to measure twice and cut once to avoid mistakes. After all pieces are cut, use sandpaper to smooth any rough edges, ensuring that every piece is ready for assembly. This step is crucial for creating a polished final product, so take your time to ensure accuracy and smoothness.

Step 4: Assemble the Frame

Begin by laying out the cut pieces on a flat surface to form the shape of your cornice. Apply wood glue along the edges where the pieces will join, then secure them together using screws. For added stability, consider using corner brackets or additional support pieces depending on the size and design of your cornice.

Ensure that all pieces are aligned correctly before the glue sets. Once the frame is assembled, allow sufficient time for the glue to dry, according to the manufacturer’s recommendations. This step is foundational in creating a durable and stable window cornice that will beautifully frame your window for years to come.

Step 5: Finish the Surface

Once your frame is securely assembled and the glue has dried, it’s time to prepare the surface for painting or staining. Start by thoroughly sanding the entire frame with fine-grit sandpaper to ensure a smooth surface. Remove all dust with a clean cloth to prevent imperfections in the finish.

Next, apply your chosen paint or stain with a brush or roller, covering all surfaces evenly. If painting, consider applying a primer first to enhance the paint’s adhesion and to achieve a more vibrant color. Allow the first coat to dry completely, then apply a second coat if necessary for full coverage. This step not only protects your cornice but also adds the finishing touch that will make it a standout feature in your room.

Step 6: Add Fabric

After the paint or stain has fully dried, it’s time to add the fabric to your cornice. Choose a fabric that complements the room’s decor and the color scheme of your window treatment. Lay the fabric face down on a clean, flat surface, and then place the cornice frame on top of it, also face down.

Ensure the fabric is centered and smooth before proceeding. Begin stapling the fabric to the back of the cornice frame, starting from the center of one side and working your way out towards the corners. Pull the fabric taut as you staple to avoid wrinkles or puckering. When you reach the corners, fold the fabric neatly, much like wrapping a gift, for a professional finish. Trim any excess fabric for a clean look. This step will give your cornice a custom, designer feel that enhances its visual appeal.

Step 7: Install L-Brackets

The next step is to secure L-brackets to the wall for mounting your cornice. Start by holding the cornice above the window in the position where it will be installed to determine the best locations for the brackets. Use a pencil to mark the wall through the holes in the brackets. It’s important to ensure that the brackets will be positioned in a way that they won’t be visible once the cornice is installed.

Once the locations are determined, use a drill to secure the L-brackets into the wall, ensuring they are level and aligned with the marks you made. If possible, attach the brackets to studs for added support; otherwise, use wall anchors suitable for your wall type. This step requires precision as the stability of the cornice depends on the secure installation of these brackets.

Step 8: Mount the Cornice

With the L-brackets securely in place, it’s time to mount the cornice onto the wall. Lift the cornice and align it with the L-brackets, ensuring it sits evenly above the window. Once in position, secure the cornice to the brackets using screws. If the cornice is particularly large or heavy, having an extra pair of hands to hold it in place while you attach it might be helpful. Be careful not to overtighten the screws, as this could damage the wood or fabric.

After the cornice is mounted, step back to check that it is level and properly aligned with the window. Minor adjustments can be made by loosening the screws slightly, shifting the cornice into the correct position, and then re-tightening. This final step of installation brings the project to fruition, providing a custom, polished look that enhances the window and the overall room décor.

Step 9: Final Inspection and Touch-ups

Now that your window cornice is securely mounted, take a moment for a final inspection. Check for any areas that may require additional paint, stain, or adjustment. If you find any fabric edges that have frayed or come loose, use fabric glue or additional staples to secure them.

Examine the overall alignment and ensure the cornice sits flush against the wall with no gaps. Make any necessary minor repairs or adjustments to perfect the appearance of your cornice. This step ensures that your window cornice not only looks professionally made but also stands the test of time as a beautiful addition to your room.

Step 10: Enjoy Your Custom Window Cornice

Congratulations! You have successfully completed your custom window cornice project. Now is the time to step back and admire your handiwork. This unique addition to your room not only enhances the aesthetic appeal of your window but also reflects your personal style and craftsmanship.

Whether softly diffusing the natural light or framing a beautiful view, your custom cornice is a testament to your DIY skills and creative vision. Enjoy the transformed space and the ambiance it brings to your home. Remember, this project can be replicated or adapted for other windows or rooms, allowing you to add a personal touch throughout your home.

By following these ten simple steps, you can create a beautiful custom window cornice that adds character and style to any room.

5 Additional Tips and Tricks on how to make a window cornice

1. Choose the Right Fabric: Opt for a fabric that complements both the room’s decor and the window’s size. Heavier fabrics lend a rich, luxurious feel, while lighter materials can offer a breezy, casual look. Remember, the fabric will significantly impact the overall aesthetic of your window cornice.
2. Consider Insulation: Adding a layer of insulation between the fabric and the cornice board can help with energy efficiency. This is especially beneficial for windows that are exposed to extreme sunlight or cold air. Insulation can also give the cornice a plush look, making the fabric appear fuller.
3. Precision in Measurements: Ensure your measurements are precise, including the width of the window, the desired height of the cornice, and its depth. A well-fitted cornice looks professional and polished, enhancing the room’s overall appearance.
4. Add Decorative Elements: Personalize your cornice with trimmings such as cording, braiding, or decorative tassels. These elements can tie the look of the room together and add an extra layer of sophistication to your window treatment.
5. Installation Considerations: Make sure you have the right tools and hardware for installation. Brackets that are strong enough to hold the weight of the cornice, along with a level for proper alignment, are crucial. Having an extra pair of hands is also helpful to ensure the cornice is securely and evenly mounted.

With these additional tips and tricks, you can elevate your window cornice to the next level, creating a stylish and functional addition to any room.

5 Things You Should Avoid

1. Skipping the Planning Phase: Jumping straight into the project without a detailed plan can lead to issues with sizing and aesthetics. Take the time to envision the final product, considering the room’s decor and the window’s dimensions.
2. Using Low-Quality Materials: Opting for cheap materials might save cost upfront but can affect the durability and appearance of your cornice. High-quality fabrics and sturdy construction materials ensure longevity and a more polished look.
3. Ignoring the Room’s Decor: A cornice that clashes with the room’s style can detract from the overall ambiance. Ensure your design and fabric choice blend seamlessly with the existing decor to enhance the room’s aesthetics.
4. Overlooking the Importance of Proper Tools: Even the most well-planned project can face difficulties without the right tools. Ensure you have all necessary hardware and tools before beginning to avoid any mid-project hiccups.
5. Neglecting Window Functionality: Remember that the cornice should not impede the window’s function. Ensure there is ample space for the window to open and close easily, and consider the placement of any window hardware to avoid interference.

By avoiding these common pitfalls, you can achieve a beautifully crafted window cornice that adds elegance and style to any room without compromising functionality or design coherence.

5 Different Ways to Customize Your Cornice

1. Fabric Choices: Play with different patterns, textures, and colors to create a unique look for your cornice. You can even mix and match fabrics to add an eye-catching element.
2. Unique Shapes: While traditional cornices are rectangular or curved, you can experiment with different shapes, such as scalloped edges, arched tops, or even asymmetrical designs.
3. Painted or Stained Finish: Instead of covering the cornice with fabric, you can opt for a painted or stained finish to showcase the natural beauty of the wood. This works particularly well for rustic or farmhouse-style rooms.
4. Incorporating Lighting: Adding lighting elements behind or within the cornice can create a beautiful, ambient effect. Consider using LED strip lights or small spotlights for a subtle touch.
5. Mixing Materials: For a more eclectic look, try mixing different materials such as wood and metal or fabric and leather for your cornice. This can add an interesting contrast to the room’s decor while still maintaining cohesion.

These are just a few ways to customize your window cornice and make it stand out as a unique focal point in your home. Don’t be afraid to get creative and think outside the box when designing your own cornice.

What Are the Types of Cornices?

1. Box Cornice: This type of cornice is a simple rectangular box that sits on top of the window frame, usually made from wood or foam board.
2. Shaped Cornice: Shaped cornices come in various designs, such as scalloped edges or curved shapes, adding visual interest to the window treatment.
3. Padded Cornice: Padded cornices are made by wrapping fabric over foam and attaching it to a wooden frame, creating a soft, upholstered appearance.
4. Swag Cornice: Swag cornices feature draped fabric that hangs down from the top of the window and is gathered up in the center with decorative tassels or ties.
5. Cornice Boards with Cutouts: These cornice boards incorporate cutouts or patterns in the wood, adding a unique and personalized touch to the window treatment.

By understanding the different types of cornices, you can choose one that best suits your design aesthetic and desired functionality for your window. Don’t be afraid to experiment with different styles to find the perfect fit for your home. With the right tools and techniques, you can create a stunning window cornice that will elevate the look of any room. 

Conclusion

How to make a window cornice is an enriching DIY project that can significantly enhance the aesthetic appeal and functionality of any room.

By selecting high-quality materials, ensuring precise measurements, and incorporating personal design elements, you can craft a window cornice that not only elevates the style of your space but also showcases your creativity and attention to detail. Avoid common pitfalls such as neglecting the planning phase or using inadequate tools to ensure your project is both successful and satisfying.

Whether opting for a classic box cornice, a plush padded design, or a uniquely shaped cornice, the key lies in tailoring the piece to complement your room’s decor while achieving the desired functionality.

With patience and creativity, your DIY window cornice will become a standout feature of your home décor, blending seamlessly with the room’s aesthetic and adding an extra layer of sophistication.