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How Wide Should Blackout Curtains Be How Wide Should Blackout Curtains Be


How Wide Should Blackout Curtains Be

Written by: Emma Thompson

Discover the perfect width for blackout curtains in our informative articles. Find out how to achieve the best light-blocking effect for your space.

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Blackout curtains are a popular choice for many homeowners who are looking to create a darker and more comfortable space. Whether you want to block out sunlight for uninterrupted sleep, reduce external noise, or enhance privacy, blackout curtains can be a great addition to your home decor. However, when it comes to finding the perfect blackout curtains, one important factor to consider is the width.

The width of blackout curtains plays a crucial role in how well they can effectively block out light and provide the desired level of darkness in a room. Choosing the right width is essential for ensuring that the curtains cover the window entirely, preventing any light leakage and maximizing their blackout capabilities.

In this article, we will explore the factors to consider when choosing blackout curtains, how to determine the correct width, and provide some useful tips to help you select the right width for your blackout curtains.

Key Takeaways:

  • Choose blackout curtain width based on window size, lighting, and desired darkness. Consider overlapping, fullness, and style for optimal light-blocking and elegant appearance.
  • Test and consult professionals to ensure the right width. Consider double panels, layering, and slightly wider options for effective light-blocking and aesthetic enhancement.

Factors to Consider When Choosing Blackout Curtains

When selecting blackout curtains, there are several important factors to take into account besides just the width. These factors will ensure that you choose curtains that not only provide optimal light-blocking capabilities but also meet your specific needs and preferences. Let’s explore these factors:

  1. Window Size: The size of your window will play a role in determining the width of your blackout curtains. Measure the width and height of your window accurately to ensure that the curtains will effectively cover the entire window area.
  2. Room Lighting: Consider the amount of natural light that enters the room. If you have large windows or a lot of sunlight, you may need wider blackout curtains to block out the light effectively. On the other hand, if your room has minimal lighting, you might be able to opt for narrower curtains.
  3. Desired Light Blockage: Evaluate how much darkness you want to achieve in the room. If you prefer complete darkness, consider going for wider curtains that can fully cover the window and eliminate any light leakage. For those who only want partial darkness, narrower curtains may be sufficient.
  4. Window Placement: Take into account the position of your windows and the direction they face. If your windows receive direct sunlight for a long duration during the day, wider curtains may be necessary to effectively block out the intense sunlight.
  5. Style and Aesthetic: Consider the style and design of the curtains that will complement your room decor. While blackout curtains are primarily functional, they also contribute to the overall aesthetics of a space. Choose curtains that align with your personal style and enhance the ambiance of the room.
  6. Installation Method: Another factor to consider is the type of curtain rod or track you have. Some installation methods require curtains with specific widths to ensure they fit properly and hang correctly. Take note of any limitations imposed by your curtain rod or track system.

By considering these factors, you can make an informed decision when choosing blackout curtains that appropriately meet your needs and preferences.

Determining the Width of Blackout Curtains

To ensure that your blackout curtains effectively block out light and provide maximum coverage, it is essential to determine the right width for your curtains. Here’s how you can go about it:

  1. Measure the Window: Start by measuring the width of your window using a tape measure. Measure the width of the window frame from one end to the other. Make sure to measure across the top, middle, and bottom, as window frames can sometimes be uneven.
  2. Consider Overlapping: To minimize light leakage, it is recommended to have the curtains overlap the window frame on either side. This overlap helps to ensure that no light enters through the sides. A general rule of thumb is to add an extra 4-8 inches to each side of the window width measurement.
  3. Factor in Fullness: Fullness refers to the amount of fabric used in the curtains. For a luxurious and elegant appearance, it is common to have curtains with a fullness ratio of 2 to 2.5 times the width of the window. This additional fabric will create beautiful folds when the curtains are closed and enhance the blackout capabilities.
  4. Consider the Curtain Style: Different curtain styles require different fabric widths. For example, if you opt for curtains with pleats or grommets, they will require more fabric width compared to curtains with a rod pocket. Take into account the style of curtains you prefer and ensure that the chosen width accommodates the style and desired appearance.
  5. Consult Manufacturer Guidelines: Some blackout curtain manufacturers provide guidelines or recommendations on the minimum and maximum width to ensure optimal light-blocking performance. Check the manufacturer’s specifications or consult their customer support if you have specific requirements.

By following these steps, you can accurately determine the width of blackout curtains needed for your windows, ensuring that they fit properly and provide effective light-blocking capabilities.

When choosing blackout curtains, make sure they are at least 1.5 times the width of your window to ensure maximum light blocking and full coverage.

Tips for Selecting the Right Width of Blackout Curtains

Choosing the right width of blackout curtains can significantly enhance their functionality and overall aesthetic appeal. Here are some helpful tips to assist you in selecting the perfect width:

  1. Consider Double Panels: If you have wider windows or desire a more full and luxurious look, consider using double panels on each side of the window. This will provide better coverage and create a more substantial and stylish appearance.
  2. Go slightly wider: It is better to choose curtains that are slightly wider than your measured window width. This ensures that when the curtains are closed, they effectively cover the entire window and prevent any light leakage. Aim for at least an additional 4-8 inches on each side for proper coverage.
  3. Combine blackout lining: If you have curtains with a narrower width, you can consider adding blackout lining to enhance their light-blocking capabilities. This will help to compensate for any gaps or spaces between the edges of the curtains and the window frame.
  4. Consider layering: Another option is to layer your blackout curtains with sheer curtains or blinds. Sheer curtains allow natural light to filter through during the day while still providing privacy. This layering technique can be particularly beneficial for windows that face a busy street or have varying lighting needs throughout the day.
  5. Test the curtains: Before finalizing your purchase, it’s a good idea to test the curtains to ensure they meet your expectations. Hang them up and observe how well they block out light. Check for any gaps or spaces where light can enter. Adjust the width or consider additional panels if necessary.
  6. Consult a professional: If you are unsure about selecting the right width or need expert advice, consider consulting a professional interior designer or curtain specialist. They can guide you through the process and help you find the perfect width for your blackout curtains.

By following these tips, you can confidently select the right width of blackout curtains that not only meet your light-blocking needs but also enhance the beauty and functionality of your space.


Choosing the right width for your blackout curtains is crucial for creating a dark and comfortable space. By considering factors such as window size, desired light blockage, and room aesthetics, you can make an informed decision that meets your specific needs and preferences.

When determining the width of your blackout curtains, accurately measure the window to ensure proper coverage. Consider factors such as overlapping, fullness, and the style of curtains you prefer. Adding extra width and utilizing double panels can enhance the light-blocking capabilities and create a more elegant look.

Layering blackout curtains with sheer curtains or blinds can provide flexibility for adjusting the level of light and privacy throughout the day. Testing the curtains before committing to a purchase and consulting a professional if needed are additional steps you can take to ensure the perfect fit.

Remember, blackout curtains not only provide functionality but also contribute to the overall ambiance of your space. Choose curtains that align with your style and enhance the aesthetics of the room, creating a cohesive and visually pleasing environment.

By following these tips and considering these factors, you can select the right width of blackout curtains that effectively block out light, enhance privacy, and create a serene and comfortable space.

So, take the time to measure, evaluate your needs, and explore different options to find the perfect width for your blackout curtains. You’ll soon enjoy the benefits of a darker, more tranquil space that promotes rest, relaxation, and rejuvenation.

Frequently Asked Questions about How Wide Should Blackout Curtains Be

What are the benefits of using blackout curtains?

Blackout curtains offer several benefits, including blocking out light to create a dark and cozy environment for better sleep, reducing outside noise for a quieter atmosphere, and helping to insulate the room by keeping heat in during the winter and out during the summer.
How do I measure for blackout curtains?

To ensure the right fit, measure the width of your window and multiply it by 1.5 to 3 times to allow for proper fullness. For the length, measure from the top of the window to where you want the curtains to fall, whether it’s just below the sill or to the floor.
Can blackout curtains be used in any room?

Yes, blackout curtains can be used in any room where you want to control the amount of light that enters. They are commonly used in bedrooms, nurseries, home theaters, and even offices to create a more comfortable and productive environment.
Do blackout curtains come in different sizes?

Yes, blackout curtains come in a variety of sizes to accommodate different window dimensions. You can find them in standard sizes like 63, 84, 96, and 108 inches in length, and they also come in various widths to fit different window widths.
How do blackout curtains help with energy efficiency?

Blackout curtains help with energy efficiency by providing insulation to the windows, which can help reduce heating and cooling costs. By blocking out sunlight and drafts, they can help maintain a more consistent temperature in the room.

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