How To Create A Window Treatment Molding Cornice?

This tutorial outlines the process of making a custom window cornice, a simple and affordable way to add a touch of elegance to your home. The process begins with measuring the curtain and curtain rod for length, depth, and width, and then securing them to the studs and joists. The tutorial also provides a detailed step-by-step guide on how to create a cornice at the ceiling level from basic 1x pine and secure it to the studs and joists.

The tutorial also covers how to create a simple window cornice using molding, creating a template, cutting the wood board to the desired size and shape, cutting the side and top pieces, and attaching the boards with braces. The tutorial also provides a step-by-step guide on how to build a scalloped window valance for a girls room and covered it in fabric.

In conclusion, this tutorial provides a step-by-step guide on how to create a custom window cornice, a simple and affordable way to add a touch of elegance to your home. By following the steps outlined in the tutorial, you can create a beautiful and functional window cornice that adds a touch of elegance to your home.


📹 How to Build & Install Window Cornice Boxes | Quick & Easy Project!

Step by step how I built and installed these custom window cornice boxes / valanes. Check out some of my build plans!


How much wider than the window should a cornice be?

For a tight fit to a window frame, add 2 inches for a 100″ wide window. For board mounted valances, no extra inches are needed, as the top wood board equals the specified width. For valances or upholstered cornice boards mounted under treatments like drapery panels or blinds/shades, add 1″-6″ to each side. Mount the valances at a total width of 4″ for blinds and shades and 7″ for drapery treatments.

What is the difference between a valance and a cornice?

Cornices and valances are traditional window treatments that are not outdated. They are installed above windows, while valances cover a significant portion of the window while allowing additional light. They come in hundreds of colors, textures, and styles, and can complement various window treatments. Motorized window coverings are a popular option that complements these treatments. Traditional cornices and valances can fit any interior design theme and give a timeless look, while motorized window treatments offer a modern, high-tech edge. Both types of shades add color and visual interest to your home.

How deep to make a window cornice?

Cornices should be 1/5 to 1/6 the window’s height, with a 10-12 inch height for a 60-inch tall window. They should be deep enough to clear curtain rods and finials, and add at least one inch to the projection of the curtain rod. The assembly is basic, but requires a few miter cuts. The reviews team may receive compensation for purchases through website links, but they are committed to providing honest, objective, and independent reviews on home products and services.

How to make an upholstered window cornice?

To cover a cornice frame with fabric, wrap the front and edges in upholstery batting and staple it to the back. Cut the fabric oversized to width and length, staple it to the back edge of the top header, fold it over the front of the frame, and staple it to the bottom in the back. Today’s Homeowner provides tips on maintaining or improving homes safely and effectively, and offers a fabric-covered cornice over a window to add a touch of elegance.

Can you make your own cornice?

Building a cornice is a simple task that can be done with basic carpentry skills. Using off-the-shelf trim and a compound miter saw, anyone can create a beautiful window or door cornice in just a few hours. The process includes selecting materials, assembling parts, and attaching the cornice to the wall. Design tips can be used to match the cornice style to your home decor. Searching online for cornice suppliers can save you money.

What is the difference between cornice and moulding?
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What is the difference between cornice and moulding?

Interior cornice and crown moulding are often mistaken for the same, serving as the “cap” or “crown” to a wall or cabinet. However, crown moulding is an interior design element, unlike cornice, which is found in exterior and interior designs. The Moulding Company offers a variety of crown moulding options for any ceiling height or location, providing an elegant transition between ceiling and walls or cabinets. They offer crown moulding in wood or man-made materials, and have flexible styles that work around tricky curves and archways.

The Moulding Company is dedicated to providing design flexibility with crown moulding options, ranging from simple and clean to elegant and decorative. They can help match your crown moulding to any design you have in mind.

How to make a cornice template?

To create a cornice, cut a 150mm long template and push it into the angle between ceiling and wall. Mark the depth and projection on the wall and ceiling, allowing for 3mm of adhesive. Repeat this process on all corners, including alcoves and chimneybreasts, and join up lines along each wall for a continuous line. Use the recommended adhesive and nail or screw the cornice to the wall or ceiling joist, ensuring they are inserted into a smooth part for easier filling later.

What are window cornices made of?

A cornice is an ornamental box made of wood with fabric attached to the frame, installed at the top of drapery, shades, or blinds. They are traditionally used on drapery, and comparing them to a valance is crucial. Valances are made with loose drapery or fabric, while cornices are made from wood with fabric attached fully to the wood. Cornices are typically used on drapery, while valances are made with loose fabric. However, a more in-depth comparison of cornices and valances can reveal more nuanced differences.

What is the rule of thumb for cornice size?
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What is the rule of thumb for cornice size?

  1. Measure the width of the window casing and add 6 inches to determine the cornice height.
  2. Cut two side pieces to the desired depth and height, then cut a piece of plywood to the length and height necessary for the face piece.
  3. Attach the top piece to the face piece using a thin bead of wood glue and nail the pieces together.
  4. Attach the sides to the front and top, completing the frame.
  5. Attach the batting to the frame by folding it over the frame to the reverse side, ensuring it doesn’t stretch out of shape. Staple the batting in place on the back of the frame.
  6. Attach the chosen fabric to the cornice, ensuring it stays straight and taut to the frame.

In summary, building a cornice board requires careful planning, cutting, and assembling. By following these steps, you can create a beautiful and functional cornice board that adds a touch of elegance to your home.

What are the three types of cornices?
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What are the three types of cornices?

A cornice is a horizontal decorative moulding that crowns a building or furniture element, such as a door or window, pedestal, or interior wall. It can be formed with a crown, such as crown moulding atop an interior wall or above kitchen cabinets or bookcases. A projecting cornice on a building is responsible for throwing rainwater free of its walls, which is handled by projecting gable ends, roof eaves, and gutters. House eaves may also be called “cornices” if they are finished with decorative moulding.

While most cornices are also eaves, not all eaves are considered cornices, as eaves are primarily functional and not necessarily decorative. Cornices have a decorative aspect, making them a crucial architectural feature in modern residential buildings.

What is a cornice moulding?
(Image Source: Pixabay.com)

What is a cornice moulding?

A cornice is a horizontal decorative moulding that crowns a building or furniture element, such as over a door or window, around the top edge of a pedestal, or along the top of an interior wall. It can be formed with a crown, such as crown moulding atop an interior wall or above kitchen cabinets or bookcases. A projecting cornice on a building serves the function of throwing rainwater free of its walls, which is typically handled by projecting gable ends, roof eaves, and gutters in residential buildings.

While most cornices are also eaves, not all eaves are considered cornices, as they are primarily functional and not necessarily decorative. A projecting cornice may appear heavy and fall-prone, but it is often very light and made of pressed metal.


📹 Simple DIY Window Cornice

In this video I make a few window cornices to add a final touch to our great room remodel. I made these mostly out of scrap MDF …


How To Create A Window Treatment Molding Cornice
(Image Source: Pixabay.com)

Rafaela Priori Gutler

Hi, I’m Rafaela Priori Gutler, a passionate interior designer and DIY enthusiast. I love transforming spaces into beautiful, functional havens through creative decor and practical advice. Whether it’s a small DIY project or a full home makeover, I’m here to share my tips, tricks, and inspiration to help you design the space of your dreams. Let’s make your home as unique as you are!

Email: [email protected], [email protected]

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4 comments

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  • A TON of great advice packed into this straight-forward, concise article. I’m not sure I would’ve thought to do any of these without having watched it. Thank you! • Buying the pre-primed pine to save money • Using painter’s tape to line up the mitered corners • Cutting the crown molding nested and upside down to avoid beveling the miter saw • CA glue bridge to reinforce the crown mold’s adhesion to the main box • Adding oversized washers to the ends of the curtain rods to prevent the curtain from slipping off • Installing a 1×2 cleat to mount it rather than a handful of angle brackets • Lining up the cleat with the ceiling rather than window itself You’ve saved me a lot of time. I seriously appreciate it. cue end-of-comment jingle “Save big money at Menards.”

  • I came here looking for ways, primarily, to mount cornices I want to build to hide 6 wall-mounted, upward shining light fixtures (which look all the world like they were made from rain gutter.) The largest alteration from your installation is that I think I’d simply need to mount it upside-down! (If I get so fancy as to add crown molding, I’d attach that right side up, of course.) Since mine would have a ‘bottom’ rather than a ‘top’ I could mount the wall cleat below the fixtures, place the ‘bottom’ below the cleat and screw upwards, through the bottom and into the cleat. (My very simple and basic original design was to leave top and bottom open to save material costs.) Maybe I’ll add one small, inconspicuous, L-bracket, over-hanging the top of each side, to prevent the top edge from pivoting out. -Thanks for the ideas!

  • Nice build. I did something similar, but 4 sided with a back piece against the wall, to hide my zebra shades. I’m okay with curtain rods showing, but hate the look of most blind tops. They not only hide them, but also allow me to hold the blind mounts without the need to screw them into the window frames or walls and are solid unlike many mounts that rely on drywall anchors.

  • You did not tell us how you mounted it on the wall. You forget that some of us are clueless. and do not speak your language when you talk so quickly and do not show us stuff like that spray stuff you used and what a cap is or how exactly it is put together. Maybe a list of things we would need to do that type of project and what alternatives we can use because most of us do not have that bada$&; garage you got there. LOL! Loved the how-two article. You made it look so easy. Great job! Thanks.

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