Embarking on a DIY project to enhance your home decor? Look no further than creating a stunning cornice box. This versatile piece not only adds a touch of elegance but also serves as a functional storage solution. Let’s delve into the world of woodworking and learn how to make a cornice box that will tops your space with distinction.
A cornice box, also known as a shoe box cornice, is a decorator’s dream. It’s an easy way to elevate your window treatments, hide electrical cords, or even create a focal point on a bare wall. So, let’s get started on this engaging, step-by-step guide that ensures your new cornice box turns heads and impresses your guests.

Gather Your Tools and Materials
Before you begin, make sure you have all the necessary tools and materials at your disposal. This will not only streamline your project but also ensure your safety throughout the process.
The list includes:
- Tools: Tape measure, pencil, miter saw, jigsaw or band saw, sandpaper, wood glue, hydrochloric acid (optional), staple gun, staple remover, and a level.
- Materials: Wood (MDF or pine), fabric, piping (optional), foam board, Velcro strips, and paint or stain.
Measure Your Space
Accuracy is key when it comes to creating a perfect cornice box. Begin by measuring the width and height of your window or desired wall space. Add an additional 1″ to 2″ on each side to allow for overhang, and write down these dimensions.
Don’t forget to account for the depth of your cornice box. A standard depth ranges between 4″ to 6″, but you can adjust this based on your specific needs.

Create Your Box
Now that you have your measurements, it’s time to create your cornice box. Using your chosen wood, cut a back panel according to your height and depth measurements. Then, cut two side panels, each matching the width and depth measurements.
Once cut, assemble your box using wood glue along the edges. Clamp the pieces together until they’re securely attached. Then, measure and cut a top panel to match the width and height. This panel won’t be permanently attached, so you can worry about decorative details like cut-outs or aggregates later.
Add a Stiffener
A stiffener adds structure and support to your cornice box, preventing it from sagging. Most commonly made from foam board, it can be cut to match the inside dimensions of your box.

Mark the inside of your box, then cut your foam board to size. Once cut, adhere it to the inside of your box using a strong adhesive or heavy-duty staples.
Create the Moulding
The moulding is what gives your cornice box its signature look. Typically, it’s made from another piece of wood, cut to match the width of your box and fashioned with a slight inward slope.
Measure and cut your moulding, ensuring it’s long enough to wrap around the sides of your box. Once cut, attach it to the front of your box using wood glue. Allow it to dry.
Add the Apron and Cornice
Cut an apron piece from your fabric, ensuring it’s long enough to wrap around the width of your box and overhang by at least 1-2 inches on each side. Attach it to the bottom of your box, covering the back panel.

Next, measure and cut your cornice, a rectangular piece of fabric that sits at the top of your box. This piece should be long enough to cover the top and hang down the front of your box, creating a soft, drape-like effect.
Assemble and Finishing Touches
Now that your cornice box is structurally complete, it’s time to add decorative elements and finishing touches.
If you’ve chosen to add piping, now’s the time to staple it around the edges of your fabric. Then, staple your cornice in place, letting it cascade down the front. If you’d like your top panel to be removable, attach Velcro strips along the top and bottom edges.
Paint or Stain
Before you install your cornice box, add a final touch with paint or stain. This will not only enhance its aesthetic appeal but also provide a protective layer, ensuring your cornice box lasts for years to come.

If you’re painting, consider using a spray paint for a smooth, even coverage. If you’re staining, opt for a water-based stain for easier cleanup and a more natural finish.
And there you have it! With just a few tools and some basic woodworking skills, you’ve created a stunning cornice box that’s as functional as it is beautiful. Now, step back and admire your handiwork. It’s time to enjoy the fruits of your labor and elevate your space with this new, eye-catching addition. Happy decorating!






