How to Measure Curtain Rods: 12 Easy Steps

Choosing the right curtain rods is essential to enhance the overall look of your windows and rooms. If you are looking to refresh your living space , then ensure that your curtains and rods complement each other seamlessly.

In this guide, we’ll walk understand How to Measure Curtain Rods correctly, so that you can achieve a polished and stylish window treatment decor as well as explore the tools, curtain rod measurements, curtain rod types, curtain rod diameter, curtain rod sizes required to get the appropriate fit as per the actual window size. So, let’s get started!


Tools Required:

Make sure to gather these following tools, before you begin:

Measuring tape
Pencil
Paper

how to measure drapery rods

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Understanding Curtain Rod Size Chart

Formula to Calculate Curtain Rod Size

Measure the Width of Your Window: Start with the width of the window frame.

Add Extra Space: Add 4 to 6 inches to each side for full coverage.

Total Length: The formula is: Curtain Rod Length = Window Width + ( 2 × Extra Space )

For example, for a 36- inch window with 6 inches of extra space:

Rod Length = 36 + ( 2 × 6 ) = 48 inches

This will give you estimate about the ideal length for your curtain rod.

hanging curtain rods measurement

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What size curtain rod for 72 window

For a 72-inch window, you’ll need a curtain rod that’s a bit wider than the window itself so the curtains can hang properly and open fully. A good rule is to add 6–12 inches to the width of your window. So, for a 72-inch window, a curtain rod that is 78 to 84 inches long should work well. This extra length will allow your curtains to cover the window completely when closed and to pull back easily when open.


The extra space on each side also makes the window appear bigger and lets in more light when the curtains are pulled back. Just make sure the rod fits the space where you’re installing it and can support the weight of your curtains.

how to measure a window for curtain rods

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How to Measure Curtain Rods for Window

For measuring the curtain rods, start by measuring the width of your window. Then, add 6 to 12 inches on each side of the window for the curtain rod to extend beyond the window. For example, if your window is 36 inches wide, choose a rod that is 42 to 48 inches long.


Next, measure how high you want to install the rod above the window. Typically, curtain rods are placed 4 to 6 inches above the window frame, but you can go higher for a more elegant look. If you want your curtains to touch the floor, also check the length of your curtains to make sure they will hang properly. Remember, choose a curtain rod that can hold the weight of your curtains.

measurements for hanging curtain rods

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Step-by-Step Guide on Measuring Curtain rods

Measuring the Window Width:

Start by measuring the width of your window. For a standard window treatment, extend your measurement beyond the window frame by 6-12 inches on each side. This ensures that when your curtains are open, they won’t block the view or much of the natural light.


Determining Curtain Rod Length:

The curtain rod length should be slightly wider than the window to allow the curtains to stack back neatly when open. Consider adding about 4-8 inches to each side of the window frame for a balanced and aesthetically pleasing look.

curtain size chart

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Curtain Stack Appearance:

If you prefer curtains that stack off the window when open, then measure the distance from the outer edge of the window frame to where you want the curtains to stack. Add this measurement to your total width.


Measuring the Window Height:

Measure the height of your window from the top of the frame to where you want the curtains to fall. For a traditional look, let the curtains hang about an inch above the floor. If you’re going for a more contemporary style, they can hover just above the floor or even puddle slightly.

how to measure curtain length and width

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Choosing the Right Curtain Rod Style:

Consider the style of curtain rods that best suits your decor. There are various options, including decorative curtain rods, double rods for layering, and tension rods for a no-drill solution.

For French doors, choose a curtain rod that fits within the door frame. For Bay windows may require adjustable rods to follow the curve.

Selecting Right Hardware:


Once you’ve measured and chosen your curtain rods, it’s time to select the right hardware. Ensure that the brackets are positioned evenly and use anchors if you’re installing into drywall.

how to curtain rod

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Installation Tips:

Use a level to ensure that your curtain rods are straight.
Install the brackets at a height that allows the curtains to hang freely without touching the floor.


How do you Measure Curtain Rods

For measuring the curtain rods, start by measuring the width of your window. Then, add 6 to 12 inches to the width on each side of the window to make sure the rod extends beyond it. For example, if your window is 30 inches wide, a curtain rod between 36 to 40 inches will be suitable.

Next, decide where you want to hang the rod above the window. Typically, curtain rods are placed 4 to 6 inches above the window frame, but you can go above too if you want a more appealing look. If your curtains are long, measure from where the rod will be placed to the floor to make sure they’ll reach the right length. Remember, a little extra length can enhance the overall look of your curtains. Choose a curtain rod that can hold the overall weight of your curtains, especially if they’re heavy.

drapery rod lengths

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How to Measure Curtain Rods for Bay Window

To measure curtain rods for a bay window, start by measuring the length of each section of the window. Bay windows usually have three parts: the middle section (which is the largest) and two angled sections on the sides. Measure the width of the middle window from one end to the other, and then measure each angled side from the corner to the end of the window. Next, decide how far you want the curtain rod to extend beyond the window on each side.

Place the rod about 4-6 inches above the window frame for a taller look. For a more custom look, you can opt for a special bay window curtain rod set that fits the angles perfectly. Make sure to measure the height of the window to know where you want the rod to be fit, typically a few inches above the window frame preferred.

Formula for measuring curtain rods for bay window:

Measure the Length of Each Section:

Middle section: Measure the width of the center window (left to right).
Side sections: Measure the width of each angled side window (left and right from corner to edge of the window).

Add Extension for Curtain Rod Overlap:

Add about 4 to 6 inches on both ends of the rod to ensure the curtains cover the entire window when closed.

Calculate the Total Rod Length:

Formula for Total Length:

Total Rod Length = Middle Section Width + 2 × Side Section Width + Overlap on Each End

Example:

Middle section = 48 inches
Side sections = 24 inches each
Overlap = 6 inches per side

Total length = 48 + (2 x 24) + (2 x 6) = 108 inches

Height Placement:

Measure about 4 to 6 inches above the window frame for where you want the rod to sit.

how to measure drapery rods

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How to Measure Curtain Rods in Inches

To measure curtain rods in inches, start by measuring the width of your window from one side to the other. For a standard window, measure the width at the top, where the curtain rod will be fit. Then, decide how much extra space you want on either side of the window for the curtains to fully cover it, usually about 4 to 6 inches beyond the window frame considered. Add this extra space to the window width to get the total length of the curtain rod.

If you’re measuring for a longer rod (like for a sliding door or wide window), you can extend the rod a few extra inches on each side to let the curtains fully open. Now, measure how high above the window frame you want the curtain rod to be, typically 4 to 6 inches. It will give you the complete measurements for your curtain rod in inches.


How to Measure Curtain Rods for Windows

To measure curtain rods for windows, start by measuring the width of your window from one side to the other. Then, add about 4 to 6 inches on each side of the window, so that the curtains can be fully covered and opened easily. Next, decide how high you want the curtain rod to sit above the window, usually it’s placed 4 to 6 inches above the frame but you can adjust it based on your style. Use a tape to measure and mark the height on both sides of the window to keep the rod level. Measure the total width you want your rod to cover, including the extra space on each side.

Finally, choose a curtain rod that matches the total width measurement, including the extra space on each side. This will help your curtains hang nicely and cover the window too. Make sure to also consider the diameter of the rod so that it fits your curtain rings or hooks properly.

how are curtain rods measured

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What Size Curtain Rod do I need for 36 inch Window

For a 36-inch window, you’ll need a curtain rod that is a little wider than the window itself so the curtains can hang nicely. A good rule of thumb is to add 6–12 inches to the width of the window. This means you should look for a curtain rod that is 42 to 48 inches long. The extra length will help the curtains fully cover the window when closed and allow them to pull back easily when open. Make sure to also consider how far you want the rod to extend on each side of the window.


That extra space helps the room feel bigger and gives more light when the curtains are open. Consider the type of curtains you have, heavier fabrics may need a sturdier rod. Lastly, double-check the measurements to ensure that the rod fits in your space and the mounting brackets are placed correctly.

how to measure for curtain rod

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How to Measure Curtain Rod Brackets

To measure curtain rod brackets, first decide where you want the rod to sit above the window. Typically, the bracket should be placed about 4 to 6 inches above the window frame but you can adjust it according to your style preference. Measure from the top of your window frame to where you want the bracket to be positioned. Next, measure how far out from the wall you want the curtain rod to extend—usually 3 to 4 inches is a good starting point. This will give you the bracket depth, which determines how far the rod will sit from the wall.


Mark these measurements on the wall, ensuring they are level and evenly spaced. Finally, install the brackets based on these measurements, making sure they’re securely attached for a stable curtain rod.

measuring for curtain rods

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How to Measure Curtain Rod Diameter

To measure the diameter of a curtain rod, simply use a tape measure or ruler to measure the width of the rod at its thickest point. Just place it across the thickest part of the rod, that is usually the center. Most curtain rods come in standard sizes, like 1 inch, 1.5 inches, or 2 inches in diameter.

Hold the tape measure or ruler straight across the center of the rod and note the measurement. If the rod is a bit larger or smaller at the ends, measure the middle section to get the accurate size. This will help you choose the right size brackets and curtain rings that fit your rod. If the rod has any decorative ends, skip those and measure just the straight part that fits into the brackets. Now, you know the diameter of your curtain rod and you’re all set to pick out the right curtain hardware.

curtain rod measurements

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How to Measure Curtain Rods for Curtains

To measure curtain rods for curtains, Start by deciding where you want to place the rod — usually a bit above the window looks best. Measure the width of the window and add about 4 to 6 inches on each side for extra coverage. This extra space ensures your curtains cover the entire window and have a nice, flowing look. Next, measure how long you want the curtains to drop, starting from the top of the rod down to where you want them to end.

If you’re using rings or clips, remember to include their height in your measurements. Make sure the curtain rod you choose is long enough to fit the width of the window and has the right diameter to hold your curtains. Now, you’re all set to choose the perfect curtains!

how to measure curtain rods

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Frequently Asked Questions (FAQs) about How to Measure Curtain Rods

How much longer should a curtain rod be than the window?

A curtain rod should be about 4 to 6 inches longer on each side of the window. This extra length ensures the curtains can cover the entire window and still pull back easily. So, add 8 to 12 inches total to the width of your window.

How do you measure for a curtain pole?

To measure for a curtain pole, measure the width of your window, then add 4 to 6 inches on each side for overlap. Also, measure how high above the window you want the pole to sit, typically 4 to 6 inches. This gives you the size needed for the curtain pole.

How high should I hang my curtains?

Measure from the top of the window frame to where you want the curtains to fall. For a classic look, hang them about an inch above the floor. For a modern touch, they can hover just above the floor or even puddle slightly.

How do you calculate curtain size?

Consider the style that complements your decor, such as decorative rods for an elegant touch, double rods for layering, or tension rods for simplicity.

Are there specific curtain rods for special windows like French doors or bay windows?

To calculate curtain size, measure the width of your window, then multiply it by 1.5 to 2 times for full, gathered curtains. For length, measure from where you want the rod to sit down to where you want the curtains to end (usually at the floor or just above it).

What type of hardware is recommended for curtain rod installation?

Ensure brackets are secure and positioned evenly. Use appropriate anchors if installing into drywall. Double-check that the level is used during installation to maintain straight alignment.

How do you figure the diameter for a curtain rod?

To figure the diameter for a curtain rod, measure the thickness of the rod itself, usually at the thickest point. Choose a rod diameter that can hold your curtains properly—standard rods are typically 1 to 2 inches wide. Consider your curtain weight when selecting the right size.

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