Learning how to hang curtains for an arched window all by yourself may seem like a challenge, but it doesn’t have to be. In this guide, we’ll break down everything you need to know — from picking the right spot for your curtain rod to selecting the perfect curtains and installing them with confidence.
Whether you want to show off that beautiful arch or just add some extra privacy, this step-by-step guide—featuring tips from my handyman uncle—will help you achieve the look you’re going for. Let’s get started!
1. Understand Your Arched Window
Arched windows are a stunning architectural feature, but their unique shape calls for a little extra planning when it comes to curtains.
What Are Arched Windows?
Arched windows have a rounded top that adds elegance and character to any space. Here are common types of arched windows to consider:
- Radius/Standard arched window: A half-circle top with a rectangular bottom.
- Half-Circle arched window: A semicircular frame set above rectangular windows or doors.
- Elliptical arched window: Features a wide, elongated curve, often over large windows or doors.
- Full chord arched window: A shallow arch that resembles a small slice of a circle.
- Full arch head window: A subtle curve at the top with straight edges aligning with a rectangular base.
Consider Your Goals
Do you want to showcase the arch’s unique shape, or are you prioritizing privacy and light control?
Sheer fabrics can highlight the natural light and frame the arch without overpowering it, while thicker or layered curtains can block light and provide a cozier, private feel.
Your Arch’s Size, Style, and Function Matter
Take note of the arch’s size, style, and how it fits into your room’s aesthetic.
Some arches are part of a larger window, requiring full-length treatments, while others are standalone features. Identifying these details will guide your choices for hardware and fabric.
2. Decide Where to Place the Rod
The placement of your curtain rod can completely transform the look of your arched window. Here’s a breakdown to help you decide:
- Rod above the arch: Mounting the rod above the arch creates a taller, more dramatic effect. This option provides full coverage, blocking sunlight and ensuring privacy across the entire window.
- Rod below the arch: Placing the rod just beneath the arch highlights the unique curve of the window. It’s a great choice if you want to show off the architectural charm while still covering the lower part for privacy.
The Paper or String Trick: To visualize how your curtains will look, try this simple trick my handyman uncle recommends:
- Take a piece of paper, string, or yarn.
- Stretch it along the top or bottom of your window frame to “sketch out” where the curtain rod will go.
- Move it around until you can see exactly how the curtains will fall and if the arch’s curve will be highlighted just right.
You now have a quick preview before you commit!
3. Measure Your Window
Once you’ve chosen where to place your curtain rod, it’s time to measure your windows. Accurate measurements ensure your curtains and rod fit perfectly. Here’s how to do it:
Measuring the Width
- Use a tape measure to find the width of the window casing from one side to the other.
- Add 6 inches on each side to allow for pleats or folds and ensure full coverage.
- Choose a curtain rod that’s 8 to 12 inches wider than the total width of the window for a balanced look.
Measuring the Length
The curtain length depends on your style preference:
- Just below the window: For a clean, tailored look.
- To the floor: For a classic and elegant appearance.
- Pooling at the bottom: For a more dramatic or luxurious finish.
Measure from where you plan to install the rod to where you want the curtains to end.
- Rod above the arch: Measure 4 to 6 inches above the window frame to your desired curtain length.
- Rod below the arch: Measure from the base of the arch down to your preferred length.
4. Choose the Right Curtain Rod
The curtain rod you choose is key to setting the tone for your window treatment. Here’s what to consider when choosing your curtain rod:
- Highlighting the arch: You can use a flexible or curved curtain rod that matches the window’s shape. My uncle prefers this option because it follows the natural curve of the window and creates a seamless look that highlights the arch instead of hiding it with straight lines.
- Creating height: For a more traditional approach, install a straight rod above the arch, which allows long curtain panels to flow elegantly.
- Layering fabrics: Double curtain rods are a smart choice if you plan to layer fabrics, like sheers for daytime and heavier curtains for nighttime.
You can also select a curtain rod that complements your room’s finishes. Here are some tips:
- You can choose from metallic, matte, or wooden rods to enhance the aesthetic of your room.
- Ensure your rod is sturdy enough to support the weight of the curtains, especially for heavier fabrics. “Get yourself a rod that’s as tough as your morning coffee,” my handyman uncle jokingly says.
5. Select the Right Curtains
Curtains can make or break the look of your arched window. Sheer panels emphasize the arch’s natural beauty, while blackout curtains provide privacy and block light.
When choosing your curtains, here are some styles to consider:
| Style | Description | Best for |
| Ripple fold drapery | Offers modern, soft S-curves | Best for mounting above the arch |
| Tailored pleat drapery | Features clean, sleek lines for a contemporary feel | Best for enhancing height when hung above the arch |
| Pinch pleat drapery | A traditional option with elegant folds | Best for timeless, classic interiors |
When choosing curtains for arched windows, think about these:
- Above the arch: Makes the room feel taller and gives complete coverage for light and privacy.
- Below the arch: Preserves the window’s beauty while controlling light and privacy.
- Custom drapery: Perfect for one-of-a-kind window shapes, makes a flawless fit and better functionality.
For arched windows, my handyman uncle — who’s also learned a lot from his DIY-loving wife — recommends easily hemmed curtains, like cotton, for a perfect fit. This way, you can adjust the length over time as the room’s style evolves.
6. Measure and Mark Placements
My handyman uncle’s mantra is: prep work makes the dream work. What he means is that taking the time to get precise measurements and placements is essential for achieving the perfect treatment for your arch window.
Use a tape measure and pencil to mark 2 inches from each side of the window at your desired rod height.
For rods above the window, make an additional mark 4 to 6 inches higher, and check with a level to ensure the marks are even.
For rods below the arch, use architectural details like trim or window panes to guide your placement.
7. Install the Brackets and Curtain Rod
Use your marked spots as a guide to install the brackets for your rod. Follow these steps:
- Check for wall studs. Use a stud finder to see if your marks align with a wall stud. If a stud is present, use a drill or screwdriver to attach the brackets securely.
- If no stud is found, drill a pilot hole and insert a drywall anchor to provide extra support for the brackets.
- Attach brackets where marked. A few tips:
- For curved rods, follow the arch’s shape and secure the rod at regular intervals to prevent sagging.
- Straight rods require even placement of brackets on either side of the arch or window frame, plus a middle support if the rod is over 4 feet.
- Test the brackets for sturdiness before adding the rod to ensure it can hold the weight of your curtains.
Read More: How to Install a Curtain Rod on Your Wall
8. Hang the Curtains
Now it’s time to bring your window treatment to life. Thread your curtains onto the rod — whether it’s a curved rod or a straight one — and make sure they slide smoothly.
- For straight rods, long panels should fall evenly on either side of the window.
- If using a curved rod, make sure the curtains follow the arch without bunching.
Adjust the curtains for symmetry and step back to admire your beautifully dressed arched window.
“Arch”-itectural Perfection Made Easy
And there you have it! Hanging curtains on arched windows doesn’t have to be complicated, right?
By taking the time to choose the perfect spot for your curtain rod and measuring your windows with care, you’ve set the groundwork for the perfect arched window treatment. With just a bit of planning, you can bring out the beauty of the arch itself.
Whether you want to go for full coverage, a little privacy, or a layered look, your space will surely feel polished and complete now that you know how to perfectly install those curtains.
Home Gnome delivers the best home service experience at the click of a button. Book reliable, skilled handymen and handywomen in seconds and leave the rest to us.
Read for your next curtain projects:
- How to Hang Curtains on the Wall Without Drilling
- How to Hang Curtains From the Ceiling
- How to Hang Curtains for a Bay Window
Main Photo Credit: Василь Чейпеш / Adobe Stock Free / License
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