How to Build and Hang a Window Cornice

Learn how to build your own wood window cornice box to costume up your window frame. Developing a personalized wood window valance is a terrific starter making job!

See a lot more of self-taught DIYer Jenny’s residence and ideas for starting DIYers in this article — you won’t want to overlook her stunning kitchen area and living space! As well as examine how to set up straightforward craftsman window trim all over any window. 

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice

In my son’s space, the window is on the wall reverse the door. The window is the focal stage of the space, the very first thing you see. I dressed it up with a Diy window cornice. The cornice adds body weight and visual fascination. It’s also a attractive accent that adds a daring pop of shade to the space. (I favored how it turned out so very well, that I produced related cornices for my other sons’ rooms.)

DIY wood window cornice box, window treatment to hide curtain rod hardware

 

What is a Window Cornice?

A window cornice is a three-sided box that frames the top of a window. A cornice typically covers—and extends out over—curtain rods, the top segment of blinds, and window casings. It can be as tall as you treatment to make it, straightforward or fancy.

A window cornice is typically good, like these produced from wood in this tutorial, while a window valance is usually produced from material and a lot more like a shorter curtain at the top of the window. A wood window valance “box” may also be termed a pelmet box, which is typically a lot more good than a valance but covered in material to match the material.

No matter whether you simply call it a window cornice, valance, or pelmet, the intent is to cover up the window hardware and give your windows some existence and fashion!

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

Creative Window Cornice Ideas

Get creative with window cornices to suit the functionality and fashion of your space. Some tips:

  • Include a shelf to the top for displaying stuffed animals or kids’ soccer trophies.
  • Paint the box portion of the cornice a distinctive shade than the trim parts.
  • Paint the window casing the exact shade as your cornice or vice versa.
  • Layer trim parts to get a unique appear or use a router to build a really personalized piece.
  • And, if you are putting crown molding up in the space at the exact time as you are undertaking your cornices, you can design it so that the crown molding operates seamlessly all over the space and the window cornice—-heaven!

For my wood window cornices, I made use of crown molding that matched what was already in the space —- very normal builder-quality things that you can find at any big box retail outlet. I also made use of some ogee trim (also identified as foundation cap).

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

How to Build a Diy Wooden Window Cornice

You should preserve in intellect that all of these wood proportions and trim parts are particular to my cornices—-you may possibly want to do a thing distinctive. For instance, I made use of a 1″ x 8″ board for my cornice box, but if you want a taller (or shorter) cornice box, you’d want to purchase a broader, or shorter, board, etc.

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Wooden Window Cornice Offer Record

*This is a delicate and economical wood. It frequently has knots and is in some cases not straight, so be picky when deciding upon your wood. Get the straightest achievable parts with the fewest knots. You can use a harder and increased-quality wood, but it will be a lot more high-priced if you plan to stain your cornice, alternatively than paint it, you’ll probable want to invest in a increased-quality wood species.

Wooden Window Cornice Resource Record

DIY wood window cornice box to cover curtain rod hardware

Diy Wooden Window Cornice Box Assembly

Action 1: System & Measure

System the appear of your cornice. Think about:

  • What trim, if any, do you want to use?
  • Will you stain it or paint it?
  • How tall and large do you want it to be?
  • How considerably area do you have previously mentioned and on the sides of the window to work with?

Measure your window from the exterior edge of the window casing on one particular aspect to the exterior edge of the window casing on the reverse aspect. Do not measure just the window by by itself. Involve the casings!

Your cornice will cling down in excess of the window and the casings. I chose to include 4″ (that is 2″ for each aspect of the window) to my window measurements. Why? To allow for the width of the edge of the cornice and for a minimal area concerning the window casing and the cornice.

Valuable Looking through: Universal Methods for Very good On the lookout Curtains

Also measure out from the wall to establish how deep your cornice requires to be. Will the cornice cling in excess of a curtain rod or blinds? The cornice box requires to be deep enough to prolong out in excess of any obstacles—-the window casing, blinds, or curtains.

Include at least a 1/2″ or so to your depth measurement so you won’t have to worry about your cornice scraping up versus your window remedies just after it’s installed.

Dependent on the clearance you have concerning the ceiling and your window, as very well as your personal desire, establish how tall you want your cornice to be.

Obtain your components and make a sketch of your proportions.

Action 2: Lower the Wooden Cornice Parts & Crown Molding

DIY Wood Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

I slice all the parts for my cornice very first.

I slice my 1″ x 8″ frequent board to size and slice equally of the shorter sides at a beveled 45-diploma angle utilizing a miter saw. This piece is the front of your cornice box.

For the top and aspect parts of my cornice box, I needed a shallower width of board, so I ripped my 1″ x 6″ frequent board down to 1″ x 5″ (a non-normal sizing not readily available at my regional lumber lawn) utilizing a desk saw. I then slice the top and aspect parts of my cornice box from the 1″ x 5″ board.

For the aspect parts, I made use of my miter saw to slice 45-diploma angles on one particular of the very long edges.

how to build a DIY wood window cornice, solid wood window valance box

I slice my crown molding and ogee trim, equally the front and aspect parts, mitered to meet flush at the corners of the cornice box.

See this put up for ideas and means to assist you learn how to slice crown molding and other trim — and constantly keep in mind to exercise, exercise, exercise on some economical molding or scraps until eventually you are self-confident with your cuts. 

For the ogee trim, set your table to 45-degrees. Depart your blade on middle at -degrees.

how to build a DIY wood window cornice, solid wood window valance box

For the crown molding, you’ll want to set the angles on your blade and desk in accordance to the spring angle of the crown molding you are utilizing. I made use of just about the most fundamental and widely readily available crown molding there is (spring angle: 53/37). I set my miter (angle on desk) to 31.five-degrees and my bevel (tilt of blade) to 34-degrees.

The most significant piece of crown molding, functioning together the top of the cornice box, has 2 exterior corners.

The remaining-hand mitered exterior corner is slice by inserting the crown to the correct of the blade. The top edge of the crown rests up versus the fence. The miter angle on the desk of your miter saw is set to the correct of middle.

You will also slice the correct-hand aspect piece of crown this way. The edge of the aspect piece of crown that meets the front piece of crown will be slice at an angle. The other aspect will be flush versus the wall, so it’s a straight-edge slice.

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

how to build a DIY wood window cornice, solid wood window valance box

how to build a DIY wood window cornice, solid wood window valance box using crown molding

The correct-hand mitered exterior corner is slice by inserting the crown to the correct of the blade. The base edge of the crown rests up versus the fence. The miter angle on the desk of your miter saw is set to the remaining of middle.

You will also slice the remaining-hand aspect piece of crown this way. The edge of the aspect piece of crown that meets the front piece of crown will be slice at an angle. The other aspect will be flush versus the wall, so it’s a straight-edge slice.

DIY Wood Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

 

DIY Window Cornice Box | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

When reducing crown, I constantly include a 50 %-inch or a minimal a lot more to the complete size I calculated prior to reducing. I’ll do a examination suit just after making my very first slice and then trim a minimal a lot more off if I want to, but with crown, as soon as you slice it much too shorter, you are out of luck! So I’m constantly really, really thorough and acquire my time to be confident to get it correct. Retain in intellect, much too, that crown has to prolong a little bit earlier the size of your cornice box. If the slice edge of the crown traces up exactly with the edge of the cornice box, there won’t be enough of an edge remaining on the crown to meet up with the edge of the aspect piece of crown, which you’ll want it to do in get to get a neat corner.

Action three: Assemble the Wooden Cornice

I drilled holes utilizing my Kreg Jig together the top, inside edges of my front box piece and my 2 aspect box parts. (If you never own a Kreg Jig, you can join your box together by very first gluing with wood glue and then utilizing finishing nails or a nail gun.)

how to build a DIY wood window cornice, solid wood window valance box

I made use of wood glue to join the mitered edges of my aspect box parts and my front box piece and clamped it all to dry. Then, I made use of my 18-gauge nail gun to boost the bond by nailing the parts together (you could also use a hammer and finishing nails, if you never have a nail gun).

how to build a DIY wood window cornice, solid wood window valance box

how to build a DIY wood window cornice, solid wood window valance boxhow to build a DIY wood window cornice, solid wood window valance box

Up coming, I made use of my Kreg Jig screws to screw together the top piece of my box to the front and aspect box parts. Now, you have acquired on your own a box. Time to jazz it up!

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

Action 4: Connect Cornice Trim

I attached the ogee trim flush to the base edge of my cornice box with my 18-gauge nail gun (you can also use finishing nails and a hammer). You can glue very first, much too, if you’d like to.

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

Just before attaching any trim, though, examination the suit of your corner parts to make confident they suit together thoroughly. how to build a DIY wood window cornice, solid wood window valance box

Make calculated marks all together the size of your box the place you want your crown molding to be. Then, use a degree or other straight edge to join the marks so you have a line together which to line up the base edge of your crown molding—you want it to be degree. Nail together the base edge of your crown to connect it to your cornice box. It can be anywhere on the box frame you opt for for it to be—-flush with the top edge of the box or someplace farther down the box. I chose to have a five-1/2″ hole concerning the top of my ogee trim and the base of my crown molding.

install crown molding on a diy wood window cornice box

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

You can constantly include a shelf to the top of the cornice box, which would give the crown a thing to connect to (like it would if it had been getting equipped together a wall and ceiling), but due to the fact on this cornice, I chose not to include a shelf, I had to glue the corner crown parts to the middle crown piece to connect them.

Use painter’s tape to secure the relationship until eventually the glue dries. Connect the base of the aspect parts of crown with nails together the base edge, just as you did with the front piece of crown.

I would suggest versus striving to nail the top piece of the aspect crown to the top piece of the front crown, as you’ll risk splitting the crown.

how to build a DIY wood window cornice, solid wood window valance box

how to build a DIY wood window cornice, solid wood window valance box

Action five: End and Paint Your Window Cornice

Now, use wood filler on your nail holes and caulk all the seams.

Valuable Looking through: Tips for Caulking Like a Pro

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

Just after the wood filler and caulk have dried, do a mild sanding to be certain a easy completed surface area. Wipe absent all dust and particles.

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

I made use of one particular coat of primer and two coats of paint, letting anything dry totally concerning coats.

Remember to paint the underside of your cornice box, much too, as it will be obvious if somebody is standing near to, or below, the window.

If the top of your cornice box will be obvious, be confident to paint the top, much too, but most of the time, a cornice box will be so near to the ceiling that no one particular will be ready to see the top of it.

DIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.comDIY Window Cornice | detailed step-by-step photo tutorial to build and hang a window cornice, on Remodelaholic.com

How to Dangle a Wooden Window Cornice

Lower a 1″ x 2″ strip of wood just shorter than the entire size of your finished cornice box.

Mount it to the wall previously mentioned the window the place you’ll be hanging the cornice, utilizing a degree and 2″ wood screws. Be confident to connect to studs and not just dry wall.

Retain in intellect how much down in excess of your window you want your cornice to hang—-that will establish the place on the wall you set up the 1″ x 2″ strip of wood (your cornice box will ‘hang’ on this strip of wood). 

how to hang a wood window cornice box or wood valancehow to hang a wood window cornice box

You will connect your window cornice box by ‘hanging’ it on, and screwing it in to, your 1″ x 2″ strip, which you have mounted to the wall previously mentioned your window. It won’t be secure enough to just ‘hang’ the cornice box on the 1″ x 2″ strip. You want to screw down by means of the top of the cornice box, in to the 1″ x 2″ strip at regular intervals together the size of the cornice box.

To make the job simpler, I screwed my 2″ wood screws partly in to the top of my cornice box prior to hanging it, so that I’d have significantly less screwing to do just after putting the cornice box in spot in excess of the window. Be aware in the placement of your screws. You never want them so near to the edge that the wood splits, therefore compromising the attachment. Neither do you never want them so much absent from the edge that they won’t screw down in to the top of your wall-mounted 1″ x 2″ strip.

how to hang a wood window cornice boxDIY Window Cornice | detailed step-by-step photo tutorial to build and hang a wood window cornice, on Remodelaholic.com

how to hang a wood window cornice box

 

diy wood window cornice for a boys room window treatment to cover window blind hardware

DIY wood window cornice box hides window shade or blind hardware

You can also use the exact idea to build a decorative and/or purposeful shelf.

Alternatively of making a box as you did for the cornice, use just a flat board and include a shelf on top. Connect trim just as you would for the window cornice. I made use of an Ook Hangman French Cleat Photo Hanging Kit to cling the shelf underneath in my kitchen—-works like a dream! And, of course, you can cling it someplace other than in excess of a window!

Build an above-window shelf with hooks, perfect for a country cottage farmhouse kitchen! Tutorial on Remodelaholic.comBuild an above-window shelf with hooks, perfect for a country cottage kitchen! Tutorial on Remodelaholic.comBuild an above-window shelf with hooks, perfect for a country cottage kitchen! Tutorial on Remodelaholic.com

Or use the exact thought to build a bed crown cornice like Cassity did for her daughter’s space in this article:

Girls Bedroom with stenciled wall and crown cornice canopy bed blue and green (7) featured image

Extra means to make your windows appear amazing:

Diy Window Cornice Just before and Afters

And just for kicks and giggles, here’s what all those bedrooms seemed like when we acquired the home and what they appear like now (with the window cornices and other updates):

before and after boys' bedroom with DIY wood window corniceDIY Window Cornice | detailed step-by-step photo tutorial to build a window cornice, on Remodelaholic.com

DIY Wood Window Cornice | detailed step-by-step photo tutorial to build a window cornice, on Remodelaholic.com

Be confident to pin your favorites to save for afterwards and share with your pals!

This DIY window cornice gives windows a MAJOR new look! Full detailed step-by-step photo tutorial on Remodelaholic.comHow to build and hang a wood window cornice, window valance box

Posted 05.03.16 // Updated 05.14.twenty

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About Jenny McArthur