How to Measure Blackout Curtains

Are you ready to find out how to measure for blackout curtains? It’s a tricky task, but it doesn’t have to be. With the right tools and guidance from this blog post, we’ll show you that measuring your windows for blackout curtains can actually be quite simple. We’ve got all of the tips and tricks you need in order to get those perfect-fitting blackout curtains – so what are you waiting for? Let’s start by taking a look at some essential tools needed when measuring for blackout curtains.

Table of Contents:

Measuring for the Perfect Fit

Measuring for the perfect fit is an important step when it comes to buying blackout curtains. The right measurements can make all the difference in achieving a snug and secure fit that will block out light and keep your home cosy. Here are some tips on how to measure your windows correctly, so you get the best results.

To ensure a precise fit for your blackout curtains, you must first measure the width and length of your window frame. Utilize a tape measure to accurately record the dimensions from one side to another along with top to bottom, respectively. Be sure not to include any extra space around its edges as this could have an adverse effect on how well-fitted they are once hung up; write down both measurements separately in order that you can use them when shopping online or in store for curtains which match these exact specifications exactly.

Once finished taking measurements, double check them against each other just in case there were any discrepancies during measurement-taking, which may cause problems further down the line when hanging up new curtains. If after checking everything twice over and noticing something isn’t quite right, don’t worry – simply adjust accordingly until both sets of numbers match up exactly, then write them down again before heading off shopping. And that’s it – easy peasy lemon squeezy. Now go forth confidently, knowing that no matter what kind of blackout curtain design you choose, they’ll be guaranteed to fit like a glove thanks to those careful measurements taken beforehand.

With the right tools and a few simple steps, you can easily measure for blackout curtains that fit your windows perfectly. Now let’s take a look at what tools you’ll need to make sure this job is done right.

Key Takeaway: Accurate measurements are essential for a perfect fit when buying blackout curtains, so double-check your numbers before you shop.

Tools of the Trade

The most important tool in measuring windows for blackout curtains is a metal tape measure. It should be at least 25 feet long and have both metric and imperial measurements marked on it. You will also need a pencil or pen to mark where you want your curtain rod or track to go, as well as a leveller if you plan on installing one yourself. Additionally, if your window has any obstructions like moulding or trim that could interfere with your measurements, then you may need some additional tools such as a hammer and nails or screws, depending on how much work needs to be done around the window frame itself.

Taking Measurements

Taking measurements for blackout curtains is a simple task that requires only basic tools. To begin, you’ll need to measure the width of your window or door frame from one side to the other. Make sure you are measuring in inches, and use a tape measure for accuracy. Once you have the width measurement, add an extra four inches on each side so that when hung, your curtains will completely cover the window or door frame.

Measuring window frame using a measure tape

Next, measure the length of your window or door frame from top to bottom. Again, make sure you are measuring in inches and use a tape measure for accuracy. When adding length to this measurement, be aware that if it’s too long, then it may puddle on the floor, which can look unsightly, but if it’s too short, then the light may still enter through gaps at either end of your curtain rod so bear this in mind when making adjustments later on.

Once you have taken the measurements for your blackout curtains, it is important to double-check them to ensure that they are accurate. This will help make sure that when you hang the curtains, they fit perfectly and provide maximum coverage. Now let’s move on to checking our work.

Checking Your Work

Checking your work is just as important to ensure that you get the right size and style of the curtain for your home. Here are some tips and tricks to double-check your measurements before placing an order:

1. Compare Measurements

Before committing to a purchase, compare all of your measurements against each other. If one measurement differs from another by more than half an inch, take new measurements or adjust accordingly in order to avoid any potential issues with sizing once the curtains arrive at your door.

2. Check Your Math

Make sure that you’ve done all of the necessary calculations correctly; if there’s a discrepancy between what you thought would be needed versus what actually needs to be ordered, make adjustments accordingly before submitting payment information or finalizing orders online.

3. Look For Errors

Once everything has been calculated and checked over twice, look for errors in spelling or numbers; these can cause delays in delivery times or even lead to incorrect sizes being shipped out all together. It’s always better to be safe than sorry, so don’t forget this step.

4. Ask For Help

Don’t hesitate to ask someone else (like a family member) for help if something doesn’t seem quite right – two sets of eyes are always better than one. They may also have helpful suggestions on how best to measure different types of windows or doors depending on their own experiences with similar projects in the past, which could save time and money down the line too.

Once you have checked that all measurements are accurate, it is time to make any necessary adjustments before proceeding with the installation of your blackout curtains.

Key Takeaway: Measuring for curtains is important, but double-checking your work and asking for help can save time and money in the long run.

Making Adjustments

When it comes to home and garden products, taking measurements is essential for ensuring a perfect fit. However, even if you take the time to measure correctly, sometimes adjustments need to be made. Whether you’re ordering custom-made curtains or trying to make something fit into an existing space, here are some tips on how to adjust measurements when necessary.

Perfectly fitted blackout curtains for the window

First of all, consider whether or not the product can actually be adjusted at all. Some items may not have any room for adjustment due to their size or design – in this case, ordering a custom-made item might be your best option. If the item does have adjustable features like straps or ties that allow you to change its size slightly, then try those first before making more drastic changes.

If adjusting the product itself isn’t possible, then look at other ways of making it work in your space, such as changing the way it’s installed or adding additional components that will help fill out any gaps between it and its surroundings (e.g., using shims). This approach is especially useful when dealing with doors and windows where minor adjustments can make a big difference in terms of function and aesthetics alike.

Finally, don’t forget about creative solutions like repurposing items from other areas of your home – think outside the box. For example, if you’re having trouble finding curtains that fit perfectly over your window frame, why not use fabric from an old bedsheet instead? With some careful cutting and sewing, you could create unique curtains tailored specifically for your needs without spending too much money on materials either.

Key Takeaway: Measure twice, adjust once. Even if you don’t get the perfect fit initially, there are still plenty of ways to make adjustments, such as installation techniques or repurposing items from around your home.

FAQs in Relation to How to Measure for Blackout Curtains

How much bigger should blackout curtains be than window?

Blackout curtains should be at least 2-3 inches wider than the window frame on each side and 4-6 inches longer. This will ensure that when closed, the curtains completely block out any light from entering the room. Additionally, for maximum coverage, it is recommended to install a curtain rod that extends beyond both sides of the window frame by 3-4 inches. This will help prevent any gaps between the wall and fabric where light can still enter.

How far below window should blackout curtains be?

Blackout curtains should be hung at least 4-6 inches below the window frame. This ensures that no light can enter from the top of the window, providing complete darkness in your room. The extra length also helps to reduce noise and drafts from entering through the gap between the curtain and window frame. For maximum coverage, it is recommended to extend blackout curtains all the way down to either just above or on top of your windowsill.


Measuring for blackout curtains doesn’t have to be a daunting task. With the right tools and a bit of patience, you can easily measure your windows for the perfect fit. Whether you’re looking to add some extra privacy or just block out light from entering your home, measuring correctly is key. Don’t forget to double-check your measurements before making any adjustments, and remember that taking time to measure for blackout curtains will ensure that you get the best results possible.

Leave a Reply

Your email address will not be published. Required fields are marked *