Unlock Perfect Window Coverage: The Ultimate Guide to Measuring Your Windows for Flawless Blind Installation

Getting the perfect blind fit starts with one crucial step that many homeowners overlook: accurate window measurements. An accurate measurement ensures great-fitting custom window treatments. Whether you’re upgrading your home’s style or improving light control, precise measurements are the foundation of a successful window treatment installation that will serve you for years to come.

Why Accurate Window Measurements Matter

This is the BIGGEST MISTAKE our designers hear about from upset customers and will lead to blinds that don’t fit. Improper measurements can result in light gaps, poor aesthetics, and functionality issues that compromise both the appearance and performance of your window treatments. One of the most common mistakes in blind installation is inaccurate window measurements. Failing to measure your windows correctly can lead to blinds that don’t fit properly, resulting in a host of issues, including light leakage, poor aesthetics, and functionality problems.

Essential Tools for Professional-Grade Measurements

Before you begin measuring, gather the right tools to ensure accuracy. Use a metal tape measure to measure accurately to the nearest 1/8-inch. Take all of your measurements with a steel measuring tape. Steel tapes are more rigid than cloth measuring tapes, so they’ll give you a more accurate reading. Should you use a less rigid measuring tape, it could sag and give you an inaccurate result.

You’ll need:

• Steel tape measure
• Pen and paper for recording measurements
• Level to check window alignment
• Flashlight or good lighting

Inside Mount vs. Outside Mount: Making the Right Choice

Your mounting choice significantly impacts your measurement approach. Inside mount treatments are installed inside the window casing. They are frequently used in conjunction with draperies, which mount outside the window. Inside mounts can also offer a clean, streamlined look. They don’t provide as much light control as outside mounts.

Outside mount window treatments are mounted outside the window casing. They are a popular choice when the blinds are going to be the only window covering. Extending them past the window provides maximum light control.

Step-by-Step Measuring Guide for Inside Mount Blinds

When you’re measuring for inside mount blinds, accuracy is key. Follow these precise steps:

Width Measurements:

Measure the width inside the window frame at the top, middle and bottom to allow for variances in construction. Measure to the nearest 1/8 of an inch. Use the smallest measurement as the window width to make sure that the blinds clear the sides of the window frame.

Height Measurements:

Measure the height inside the window frame on the left (h1), middle (h2), and right (h3), to allow for variance construction. Round the measurements down to the nearest 1/8 of an inch. Use the largest measurement as the window width so the blinds cover the entire opening.

Depth Check:

You can find the depth of your window by measuring from its opening to the glass at the left, center and right. Use the smallest measurement as the depth of your window frame. This ensures your blinds will fit properly within the window frame.

Outside Mount Measuring Technique

For outside mount installations, you have more flexibility but need to plan for optimal coverage. Measure the overall area to be covered. Measure both the width of the window and the height of the window. Consider adding an extra 3 inches to the width and height for optimum light control and privacy. Extending the blinds outside the window will also provide the space needed for the mounts and help the window appear larger than it actually is.

We recommend at least a 2 1/2″ overlap on both the left and right side of the window. We recommend starting at least 3″ above the top of the frame to accommodate for mounting hardware.

Critical Measurement Mistakes to Avoid

Even experienced DIYers can fall into common measurement traps. You wouldn’t believe how often people get the wrong size blinds simply because they mixed up the width and height. An easy way to avoid this mistake is to use the Blinds.com Measuring Guide and double check your measurements.

Additional mistakes to avoid include:

• Assume All the Windows Are the Same Size · First, keep in mind that even though your windows might look the same, there are sometimes minor variations in the window sizes. For example, a window that was replaced might have slightly different dimensions than the others.
• Using a fabric tape measure: Fabric tape measures can stretch, leading to inaccurate measurements. Not measuring at multiple points: Windows are rarely perfectly square. Measuring only once can result in blinds that don’t fit well.
• Many people are tempted to simply measure their existing blinds and use those figures when they order new ones. If the existing blinds fit perfectly and you bought the same style, this should world alright. In many cases, though, existing blinds don’t fit perfectly. They may not have been measured properly when first installed, or they could’ve been slightly altered over the years that you’ve had them.

Professional Installation Services in Texas

For homeowners in the Tarrant County area seeking professional window treatment solutions, A Plus Shutters offers expert measuring and installation services. With a decade in construction and a dedicated shutter showroom, we bring unparalleled expertise and passion to every project. Our commitment to local craftsmanship and personal service sets us apart, making us a beloved choice in Arlington and beyond.

If you’re specifically looking for quality blinds reno services, professional installers can ensure perfect measurements and flawless installation. Custom Measurement: We take precise window measurements for a perfect fit.

Proudly featuring Texas-made products with superior quality. Leveraging a decade of construction expertise for flawless installations. Professional services eliminate the guesswork and potential costly mistakes that can occur with DIY measuring.

Final Tips for Measurement Success

Before you place your order, it’s always a good idea to double check your measurements. As they say in the building trades, “Measure twice, cut once.” Make sure that you read the tape measure correctly, measured in 3 places, selected the right measurement of the 3, didn’t mix up width and height, and that you transferred your measurements to your Blinds.com order correctly.

Remember these key points:

• Always measure to the nearest 1/8-inch. Don’t round to a half or whole inch.
• Always have width and height clearly marked. Always put your width measurement first and height last (W x H).
• Measure every window — even if some appear to be the same size.
• Be mindful of any obstructions, such as latches or handles.

Taking accurate window measurements is a skill that improves with practice, but following these professional guidelines will help ensure your blinds fit perfectly the first time. Whether you choose to tackle the project yourself or work with experienced professionals, precise measurements are the key to achieving beautiful, functional window treatments that enhance your home’s comfort and style.