How to Measure Up for Vertical Blinds

Vertical Blinds

How to Measure Up for Vertical Blinds

Published April 11, 2024

Vertical blinds offer a stylish and functional window covering solution for any home or office space. However, achieving the perfect fit requires precise measurement and installation. In this comprehensive guide, we’ll walk you through the steps to measure up for vertical blinds, ensuring a seamless and tailored look for your windows.

How to Measure Up for Vertical Blinds

Measuring up for vertical blinds is crucial to ensure they fit perfectly and provide effective light control and privacy. Follow these steps for accurate measurements:

Step 1: Gather Your Tools

Before you begin, gather the necessary tools, including a metal tape measure, pencil, and paper. Having these tools on hand will make the measuring process smoother and more accurate.

Step 2: Measure the Window Width

Start by measuring the width of the window where you plan to install the vertical blinds. Measure from the inside of the window frame at the top, middle, and bottom. Record the smallest measurement to ensure the blinds fit snugly within the window frame.

Step 3: Measure the Window Height

Next, measure the height of the window from the top of the inside frame to the windowsill. Again, take measurements at three points (left, middle, and right) and record the shortest measurement.

Step 4: Account for Mounting Depth

If you’re mounting the blinds inside the window frame, measure the depth of the window recess to ensure there’s enough space for the blinds to fit properly.

Step 5: Consider Outside Mounting

If you prefer to mount the blinds outside the window frame, measure the desired width and height of the blinds, including any overlap you want on each side.

How to Measure and Fit Vertical Blinds

Once you have accurate measurements, it’s time to fit the vertical blinds. Follow these steps for successful installation:

Step 1: Prepare the Blinds

If your blinds need to be trimmed to size, carefully measure and mark the required width using a pencil and straight edge. Use sharp scissors or a hacksaw to cut the blinds to the correct width.

Step 2: Install the Brackets

Position the mounting brackets at the top of the window frame or on the wall, depending on your mounting preference. Use a level to ensure the brackets are straight, then secure them in place with screws.

Step 3: Hang the Blinds

Attach the headrail of the blinds to the mounting brackets, making sure it clicks securely into place. Test the blinds to ensure they operate smoothly and adjust the length if necessary.

Step 4: Adjust the Length

If the blinds are too long for the window height, you can easily adjust the length by removing some of the slats. Simply unhook the slats from the bottom chain, trim them to the desired length, and reattach them.

FAQs (Frequently Asked Questions)

Q: Can vertical blinds be cut to size?
Yes, vertical blinds can be cut to size using sharp scissors or a hacksaw.

Q: How do I measure for vertical blinds outside mount?
To measure for outside mounting, measure the desired width and height of the blinds, including any overlap on each side of the window frame.

Q: Is it easy to fit vertical blinds?
With the right measurements and tools, fitting vertical blinds can be relatively easy and straightforward.

Q: How do you shorten vertical blinds with weights?
To shorten vertical blinds with weights, simply remove some of the slats from the bottom chain and reattach them at the desired length.

Q: Can spotlight make vertical blinds to my window measurement?
Yes, many retailers, including Spotlight, offer custom-made vertical blinds tailored to your window measurements.

Q: How do I fit vertical blinds to uPVC windows?
Fitting vertical blinds to uPVC windows is similar to fitting them to other window types. Follow the same measurement and installation steps outlined in this guide for a perfect fit.


Achieving the perfect fit for vertical blinds requires careful measurement and installation. By following the steps outlined in this guide, you can ensure your blinds fit seamlessly and enhance the aesthetics and functionality of your windows.

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