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How to Measure For Window Curtains: Easy Steps For a Perfect Finish

The Perfect Fit: Simple Steps to Measure for Window Curtains

Curtain window treatments refer to a variety of aesthetically pleasing and practical window coverings. They can provide privacy, manage lighting, insulate against heat or cold, and improve the visual attractiveness of a space, among other things. Curtains can be hung on a rod or track above the window and are normally made of different fabrics. To accommodate various interior design trends and individual tastes, they are available in a broad variety of colors, patterns, and textures.

Curtains can be made to match a space’s particular requirements. They can be customized to varying lengths, widths, and fullness, providing versatility for privacy and light management. Curtains can be further improved in terms of both aesthetics and practicality by using accessories like tiebacks and valances. Best Curtains offer a flexible and individualized method for decorating windows, adding both functional advantages and aesthetic improvements to a space.

How to Measure For Window Curtains

A Guide to Measuring Window Curtains: Achieving a Flawless Finish

Window curtains measurement is a crucial step in ensuring a proper fit and a polished appearance. You can guarantee that your curtains will adequately cover the window, hang at the required length, and produce the desired aesthetic result by collecting precise measurements. For accurate curtain measurement and a flawless appearance, simply follow these guidelines:

Step 1: Gather the Necessary Tools

Assemble the required equipment before you begin measuring.

Measuring Tape

  • A flexible measuring tape for precise measurements.

Step Ladder

  • If your window is higher up, a step ladder will make it simple for you to go to the top.

Paper and Pen (Or a Note-Talking App)

  • Keep these at hand to take measurements and any other notes.

Step 2: Decide On the Curtain Type

Choose the curtain type that you want to hang. Common alternatives include valances, which are decorative toppers such as cafe curtains, which only partially enclose the window, and full-length curtains that extend to the floor, which is great especially when choosing eco-friendly window curtains. Your choice will have an impact on how you measure the window.

Step 3: Determine The Curtain Rod Placements

Determine the location of the curtain rod. It can be installed above the window frame, near the ceiling for an elongated appearance, or inside the frame for a more conventional effect. The length and width measures of the curtains will be affected by the rod’s placement.

Step 4: Measure the Width

Start by measuring the curtain rod or track’s width. Measure without including any decorative end caps or finials, from one end to the other. Measure the complete length of the track, taking into account any overlaps or returns, if you are using a track.

Full-length Curtains

  • Add extra width to the dimension for full-length curtains so that they can collect when opened. Depending on the desired fullness, it is a good idea to multiply the rod measurement by 2 times.

Valances Or Cafe Curtains

  • Make sure the breadth of the area you wish to cover is within the appropriate range by taking a measurement.


The width of each panel should be measured separately if you are using numerous panels.

Step 5: Measure the Length

Next, measure the curtain’s desired length. The kind of curtains and your particular preferences will determine this:

Full-Length Curtains

  • Measure from the top of the curtain rod to the required length at the floor for curtains that hang to the floor. The measurement should be increased by a few extra inches if you like a minor break or pooling appearance.
  • Measure to the required length, leaving a tiny clearance of about 1-2 inches, for drapes that hang just above the floor.

Cafe Curtains

  • The length of the cafe curtains should be determined by measuring from the top of the rod. Make sure it covers the area of the window that is intended.


  • The desired length of the valence should be measured starting at the top of the rod. It might be anything between a few and many inches.

Step 6: Consider Curtain Fullness

Now that you have the width and length measurements, it’s time to decide on the desired fullness of your curtains. Fullness refers to the amount of fabric used in relation to the window width. There are three main options:

Standard Fullness

This is the most common option, where the curtain width is approximately 1.5 to 2 times the width of the window. It provides a balanced and classic look.

Double Fullness

For a more luxurious and dramatic appearance, choose double fullness. In this case, the curtain width is about 2.5 to 3 times the width of the window.

Sheer Fullness

If you’re using sheer curtains, opt for sheer fullness, which involves using two to three times the window width to create a soft and ethereal effect.

Consider your personal style and the overall ambiance you wish to create in your home when deciding on the fullness of your curtains.

Step 7: Account for Mounting Style

The mounting style of your curtains will also affect the measurements. There are two main types of mounting:

Inside Mount

If you prefer a clean and streamlined look, choose an inside mount. In this case, the curtains will hang inside the window frame. When measuring for an inside mount, subtract about half an inch from the width measurement to ensure a proper fit.

Outside Mount

For a more dramatic and impactful appearance, an outside mount is the way to go. With this option, the curtains hang outside the window frame, covering the entire frame. When measuring for an outside mount, add the desired overlap (usually 4 to 6 inches) to the width measurement.

Consider your personal preference and the style of your windows when selecting the mounting style.

Step 8: Consider Additional Measurements

Make a note of any other measures that could affect the installation and usability of your curtains:

Return Measurement

Measure the distance from the wall to the front of the curtain rod if you are using one with a return. This makes sure that when the curtain panel is fully extended, it is free of any impediments such as window casing or blinds.

Hem Allowance

Set your preferred hem length, then increase your length measurement by that amount. This will explain the curtain’s bottom-most fabric fold.

Step 9: Check and Adjust Your Measurements

Double-check your measurements to guarantee correctness before submitting them for approval. Always be cautious beforehand and you can also measure again rather than having curtains that don’t fit.

steps for How to Measure For Window Curtains

Step 10: Calculate the Final Measurements

Now that you have all the necessary information, it’s time to calculate the final measurements for your curtains. Use the following formulas:

  • For inside mount: Curtain width = Window width – 0.5 inches
  • For outside mount: Curtain width = Window width + desired overlap

Once you have the curtain width, use the length measurement you obtained earlier to determine the final dimensions of your curtains.

Step 11: Record Your Measurements and Make Notes

Include the width, length, return measurement, and hem allowance in your list of measures. When buying or installing the curtains, making notes will assist you in recalling any special requirements or adjustments that you need to make.

Step 12: Consult With a Professional (Optional)

Consider seeking the advice of a qualified curtain installer or interior decorator if you have questions about gathering measurements or would like more information. They can offer professional guidance and guarantee a flawless fit for your curtains.

Always remember that it’s usually best to buy curtains that are a little bit wider or longer than the stated dimensions to allow for changes during installation. By doing so, you can cut or reposition the curtains to get the ideal fit.

In Closing

Measuring window curtains is a simple process that can make a significant difference in the overall look and feel of your space. By following the easy steps outlined in this guide and getting precise measurements, you can guarantee a flawless and well-fitted appearance for your window curtains. Remember to take accurate measurements, consider the fullness and mounting style, and calculate the final dimensions accordingly. With these guidelines, you’ll be able to create a stylish and harmonious window treatment that enhances the beauty of your home. Enjoy choosing and hanging your curtains with the knowledge that they will elegantly complete your room and offer the required functionality.

Written By

Hi there! My name is Matt and I write for Expert Home Report. I enjoy writing about everything related to home improvement, home tips and DIY. In my spare time, I'm either spending time with my family, doing a DIY project or learning a new skill.