Measuring window shades isn’t just about getting close—it’s about hitting the exact mark. Small differences in inside width, outside width, and depth can turn a near fit into a costly problem. This guide shows you how to measure window shades with precision, so your custom treatments look polished and fit perfectly. Book your free in-home design consultation now to secure promotional savings while our Fall Sale lasts in Costa Mesa and Laguna Beach. Learn more here.
Step-by-Step Measuring Process
Embarking on a journey for custom window shades starts with accurate measurements. Let’s walk through essential steps to ensure a perfect fit for your home.
Inside Mount Measurement Tips
For an inside mount, it’s all about precision. Begin by measuring the width of the window at the top, middle, and bottom. Use the narrowest measurement for the best fit. Make sure to measure the height in the same manner, recording the longest length. Always note measurements to the nearest 1/8 inch to ensure accuracy.
Next, consider the depth of your window frame. Most inside mounts require at least 1 inch of depth, but always check the specific requirements for your chosen shade style. Remember, measuring accurately can prevent issues later on and ensure the shades sit perfectly within the window casing.
Outside Mount Measurement Guide
For an outside mount, the process is slightly different. Measure the width of the area you want to cover, ensuring extra space on either side of the window for optimal light control and privacy. Adding 3-5 inches to each side is often recommended.
Height measurements should extend from the top of where you plan to mount above the window to the bottom of the sill or beyond, depending on your design preference. This method offers great flexibility in terms of light blocking and privacy, making it a popular choice for many homeowners.
Measuring Window Depth for Shades
The depth of your window frame matters, especially when installing inside mount shades. Use a ruler or tape measure to note the distance from the glass to the very edge of the frame. A minimum depth of 1 to 2 inches is typically required for most shades.
Consider how the shade will function in your window: motorized or cordless options may have specific depth needs. By getting this step right, you ensure that the mechanism operates smoothly and fits beautifully.
Common Measurement Mistakes

Even small errors can lead to significant issues when measuring for window shades. Let’s identify common pitfalls and how to avoid them.
Inside Width Variations
A common mistake is assuming all windows are perfectly square. Always check the width at multiple points: top, middle, and bottom. Variations can occur due to building settling or original construction quirks. Precise measurements prevent the shades from being too tight or leaving unsightly gaps.
Outside Width Challenges
Another challenge is underestimating the width required for outside mounts. Many homeowners don’t account for additional width needed to cover potential light leaks effectively. Always add extra width to your measurements to ensure complete coverage and privacy.
Depth Measurement Errors
Depth measurement is often overlooked but critical for a snug fit. Not considering the depth can lead to shades protruding awkwardly or not fitting at all. Use a tape measure to confirm the depth before making your purchase decision.
Taking Advantage of the Fall Promotion

Now that you’re equipped with the measuring know-how, let’s explore how to maximize your savings and benefit from professional guidance.
Benefits of Professional Guidance
While measuring on your own is possible, the expertise of a professional can be invaluable. Our consultants provide precise measurements and expert advice, ensuring that you choose the perfect shades for your space. Plus, they bring samples right to your home, so you can see how different options might look in your environment.
Booking Your Free Consultation
Ready to make the leap? Booking your free in-home design consultation is a breeze. During the consultation, a professional will visit your home, measure your windows, show you a variety of samples, and help answer any questions. This service is the first step towards transforming your space with our custom window shades.
Securing Promotional Savings on Shades
Don’t let the opportunity for savings pass you by. Our Fall Sale offers up to 25% off on all shades and drapery. By acting now, you can secure these savings and enjoy the benefits of custom shades perfectly fitted to your home. Visit our Costa Mesa and Laguna Beach locations or schedule your consultation online.
Frequently Asked Questions
How do I measure for inside mount shades?
Measure the width in three places: top, middle, and bottom of the window. Use the smallest measurement to ensure a proper fit. Measure the height similarly and record the longest measurement.
What is the difference between inside and outside mount?
Inside mount shades fit within the window frame, while outside mount shades are installed above and outside the window frame, offering more coverage.
Why is window depth important for shades?
Depth measurement ensures that the shade will fit properly and operate smoothly, especially for motorized or cordless options that require specific depths.
Can I install window shades myself?
Yes, but professional installation ensures a seamless fit and function. Professionals can handle any complexities and provide a polished look.
How do I book a free in-home design consultation?
You can book your consultation by visiting our website, calling our stores, or stopping by our Costa Mesa and Laguna Beach locations. Our experts are ready to assist you with precise measurements and design choices.