How to Measure For Window Shades And Blinds

how to measure for window shades and blinds

Why Measuring Matters: A Good Fit Starts Here
Getting the right fit is the first step to beautiful window treatments. If your shades or blinds don’t match the window’s shape or size, they might hang unevenly, block too much or too little light, or just look off. In this guide, we’ll walk you through how to measure for window shades and blinds so they fit perfectly. With a few simple tools and clear steps, you can make sure your window coverings look and work just right. Bella Casa Shade & Drapery is here to help you every step of the way.

Before You Start: Tools & Setup
Before measuring, make sure you have a metal measuring tape, a pencil, and something to write on. Don’t use fabric tape because it can stretch. A steel tape gives exact measurements. Decide if you want an inside mount or outside mount. Inside mount fits within the window frame, while the outside mount sits on the wall above or around the frame. This choice affects where and how you measure.

window shades measurement

Inside Mount: Measuring for a Sleek, Built-In Look
For inside-mounted blinds or shades, you’ll need to measure the width and height of the window opening in three places: top, middle, and bottom for width; left, center, and right for height. Always write down the smallest width and the tallest height. This ensures a snug, custom fit. Also, check the window frame depth. Many blinds need a certain depth to mount correctly.

Outside Mount: Measuring for Full Coverage
For an outside mount, measure the width of the area you want to cover. This might be the window trim, or even beyond it, to block more light. Add at least 2 to 3 inches on each side of the window for better light control. For height, measure from the point where you plan to mount the headrail to where you want the blinds to end. Add extra inches to account for mounting brackets and desired overlap.

Width vs. Height: Why Both Matter
Window measurements need to be precise in both width and height. Getting the width wrong could cause your blinds not to fit or leave gaps. The wrong height might make them too short or cause bunching at the bottom. Always double-check your numbers. Even a small mistake can lead to window treatments that don’t work or look right.

window measurement

Understanding Mount Types: Inside vs. Outside
Inside mount creates a clean, modern look and works well with deep window frames. It shows off the window trim and saves space. Outside mount offers better light control and can hide window flaws. It also makes windows look larger. Choose what works best for your room, your needs, and your style. Bella Casa Shade & Drapery can help you compare options.

Common Mistakes and How to Avoid Them
Some common measuring mistakes include using the wrong tool, not checking for obstructions like window cranks, or forgetting to account for trim or molding. Others forget to measure every window individually—even if they look the same, they might not be. Always take your time and measure carefully. Mistakes lead to extra costs and frustration.

Measuring for Special Windows and Shapes
Not all windows are squares or rectangles. Arched, angled, or unusually shaped windows need extra care. You may need to measure width and height at specific points and provide more details. In some cases, custom blinds or shades are the best solution. It’s smart to talk to an expert for these types of windows to make sure your window coverings fit perfectly.

blind and shades measurement

Measuring for Vertical Blinds, Roller Shades, & More
Different window coverings need different measuring techniques. Vertical blinds need extra width for overlap. Roller shades require you to consider the diameter of the rolled fabric. For layered treatments like dual shades or solar shades, you may need to allow more space. Always follow product-specific guidelines.

Why Precise Measurements Matter in Decatur, GA
Humidity, window trim styles, and house construction in Decatur, GA, can affect how blinds and shades sit in the frame. That’s why it’s important to measure carefully and choose the right materials. Bella Casa Shade & Drapery knows local homes and can help recommend styles that work well in our climate and construction types.

Final Steps and When to Get Help

Once you’ve gathered your measurements, write them clearly and label them by window. Double-check everything. Then you’re ready to order. If you’re unsure, it’s always best to get a professional to double-check or do the measuring for you. A good fit leads to smooth installation and a polished look.

Need help measuring or choosing the right window treatments? Bella Casa Shade & Drapery is here to make the process easy and accurate. Contact us today for personalized service and a perfect fit.