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How To Measure For Window Shades and Blinds: A Simple Step-by-Step Guide

  • slyterventures
  • Jun 4
  • 5 min read

When installing new shades or blinds, knowing how to measure for window shades and blinds is the first and most important step. Accurate measurements help your window treatments fit well, work right, and look great. If you measure wrong, you may have gaps that let in light or shades that don’t hang straight. You might even end up needing to buy new ones. Measuring correctly means you’ll save time and money while making your room more comfortable. It’s a simple task, but getting it right makes a big difference in how your window coverings perform every day.


Understanding The Basics Of Window Shades And Blinds

Shades and blinds both block light and offer privacy, but they’re a little different. Blinds are made with slats that can be tilted open or closed, while shades are made from solid fabric that rolls, folds, or stacks. When you choose between them, think about how much light you want to block, how easy they are to clean, and how they’ll look in your space. Some people pick blinds for living rooms and kitchens, and others prefer shades in bedrooms or offices. No matter which type you choose, measuring your windows the right way is a must.


Essential Tools For Measuring Window Shades And Blinds

Essential Tools For Measuring Window Shades And Blinds

Steel Measuring Tape: Gives accurate length and width readings in inches or centimeters.

Pencil and Notepad: For jotting down measurements clearly and organizing window sizes.

Step Ladder: Helps you safely reach higher window frames for top-to-bottom measurements.

Level Tool: Ensures your measurements are straight for proper inside or outside mount alignment.

Metal Ruler or Straight Edge: Useful for double-checking short or narrow window spans.

Smartphone (optional): For taking pictures or using measurement apps as a reference.

Flashlight: Helps spot trim shadows or deep window frame edges when lighting is poor.

Blind Size Chart or Guide: Helps you compare measurements to standard blind sizes.


Step-By-Step: How To Measure For Window Shades And Blinds

Step 1: Decide if you want an inside mount or an outside mount. This choice will change how and where you measure.

Step 2: For inside mount, measure the width across the top, middle, and bottom of the window opening. Write down the smallest number.

Step 3: For height, measure from the top to the window sill in three spots—left, center, and right. Use the longest number.

Step 4: For outside mount, measure the width of the area you want to cover, usually 2-3 inches beyond the window frame.

Step 5: Measure the height from where you’ll install the headrail to where you want the blind or shade to end.

Step 6: Record all measurements in inches and round to the nearest 1/8 inch. Never assume two windows are the same size.

Step 7: Label each window clearly so you know which measurements belong where.

Step 8: Double-check everything before placing your order to avoid costly mistakes.


Measuring For Outside Mount Window Shades: A Complete Guide

Outside mount shades attach to the wall or trim above your window and cover more space. They’re a good choice if your window is too shallow for an inside mount or if you want to block more light. Start by measuring the width of the area you want the shade to cover. Add at least 2 to 3 inches on each side to reduce light gaps. Next, measure from the top of where the shade will mount down to where you want it to end. Knowing how to measure for blinds outside mount makes the final result more effective and attractive.


Standard Size Blinds vs Custom Measurements

Standard Size Blinds vs Custom Measurements

Many homes use standard-size window blinds, which come in common widths like 24, 36, or 48 inches. But every window is a little different. If your size isn’t available off the shelf, custom blinds are the answer. Custom blinds are made to fit your exact window measurements and offer more design choices. Use a blind size chart to see if your window fits a standard size. If not, it’s easy to measure and order custom ones. Either way, measure first, then shop. That way, you know exactly what you need before you make a decision.


Decoding Window Blind Size Charts What The Numbers Mean

Decoding Window Blind Size Charts: What The Numbers Mean

A window blinds size chart shows common widths and heights, but it can be confusing if you’re not sure how to read it. The width usually comes first, followed by height. For example, a 24 x 64 blind is 24 inches wide and 64 inches long. If your window is close to a listed size, you might be able to trim the blind. If not, go custom. When in doubt, always check the product’s measuring instructions. Proper window blind measurements help make sure your shades hang evenly and cover the window fully without sagging or bunching.


Common Mistakes When Measuring Window Blinds

It’s easy to make simple mistakes when measuring. One big error is rounding measurements too much; always round to the nearest 1/8 inch. Another mistake is using a fabric tape, which isn’t accurate. Forgetting to check the window depth for inside mounts can also cause problems. Some people mix up width and height, so be clear about which is which. Double-check all numbers before you order. It helps to label each set of measurements by window name or room. When you understand blinds measurement basics, it makes ordering and installing much easier.


How To Measure For Window Shades And Blinds In South Central, KY

How To Measure For Window Shades And Blinds In South Central, KY

In South Central, KY, windows often vary in shape and depth due to different house styles. Some homes have deep trim that’s perfect for inside mounts, while others need outside mounts to handle light gaps. At Blinds Master Co., we’ve helped many local homeowners find the right fit for their windows. Our team offers expert advice and support, whether you’re installing in a historic home or a modern build. Measuring right the first time makes your shades and blinds last longer, look better, and work smoother.


What To Do with Your Measurements: From Tape To Order

Once you have all your measurements, it’s time to choose your products. Match your numbers with a window blind size chart or take them to a retailer. If shopping online, enter the exact measurements where prompted. Decide if you want inside or outside mount blinds or shades. Check if the depth of your window works with your selection. Then, order your materials. At Blinds Master Co., we double-check each order to make sure the measurements match the right product type. That way, you get a perfect fit without extra stress or adjustments later on.


Trust The Blinds Master For a Perfect Fit Every Time

Getting the right window treatment starts with measuring correctly. Whether you're learning how to measure for window shades and blinds or just looking for tips, the steps above will help guide you. Take your time, write everything down, and don’t be afraid to ask for help. At Blinds Master co, we’re proud to help homeowners make smart, stylish choices. With the right fit, your blinds or shades will improve both comfort and style.

Want help with measuring or installation? Contact us today for free advice and a friendly walk-through from our team. We're here to make your home look and feel its best.


 
 
 

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