how to measure windows for window treatments

Perfectly Measuring Windows for Window Treatments: A Step-by-Step Guide

By Mark Miller
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Measuring your windows accurately is the first crucial step in installing the perfect window treatments. Whether you're looking to add privacy, block light, or enhance your home's aesthetic, precise measurements ensure a tailored fit and optimal functionality. Let's dive into the step-by-step process of measuring your windows for window treatments.

Before you start, gather a measuring tape, a pen, paper, and a ladder for hard-to-reach windows. Also, have your chosen window treatment's installation instructions handy, as some treatments may have specific measurement guidelines.

Measuring for Inside Mount Window Treatments

Inside mount window treatments are installed within the window frame, providing a sleek, built-in look. This type of installation is ideal for windows with limited space or when you want to maximize your view.

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To measure for inside mount window treatments, follow these steps:

Width

Measure the width of the window frame at the top, middle, and bottom. Use the narrowest measurement for your window treatment width. This ensures a snug fit and prevents light gaps.

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For example, if your window frame measures 36" at the top, 38" in the middle, and 36" at the bottom, your window treatment width should be 36".

Height

Measure the height of the window frame from the top inside edge of the frame to the bottom inside edge. Again, use the shortest measurement to accommodate any variations in the window frame.

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For instance, if your window frame measures 48" on the left side, 50" in the middle, and 48" on the right side, your window treatment height should be 48".

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Measuring for Outside Mount Window Treatments

Outside mount window treatments are installed above, below, or on the sides of the window frame, providing more flexibility in placement and light control. This type of installation is perfect for windows with architectural challenges or when you want to cover more than just the window itself.

To measure for outside mount window treatments, consider the following:

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Width

Decide how wide you want your window treatment to be. This could be the same width as your window, or you might want to extend it to cover more area. Measure the desired width at the top, middle, and bottom, and use the narrowest measurement for your window treatment width.

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For example, if you want your window treatment to be 42" wide and your window frame measures 36" at the top, 38" in the middle, and 36" at the bottom, your window treatment width should be 36".

Height

Determine how high you want your window treatment to be. Measure the desired height from the floor to the top of your chosen placement. Use this measurement for your window treatment height.

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For instance, if you want your window treatment to be 60" high and your window is 48" tall, your window treatment height should be 60".

Additional Considerations

When measuring for window treatments, keep these additional factors in mind:

  • Window Type: Casement, awning, and other specialty windows may require different measurement techniques or specific window treatments.
  • Obstructions: Consider any obstructions, such as trim, moldings, or hardware, that could affect your measurements or the installation process.
  • Hardware Placement: For outside mount window treatments, consider where you want to place the brackets or hardware. This could affect your measurements and the overall look of your window treatment.

Once you've taken your measurements, double-check them for accuracy. It's always a good idea to round down to the nearest 1/8" to ensure a proper fit. With precise measurements and careful installation, your window treatments will not only look great but also function perfectly, enhancing both the beauty and comfort of your space.

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