When we say “roller shades”, most people think of the fabric and the mechanism as key elements of the perfect choice. However, there’s one more component whose importance is often overlooked by the layman – the fit.
If you want your roller shades to look good, be functional, and fulfill their light-blocking purpose, you need to ensure that they are fitted properly.
But how exactly do you do that? What are the basic measurements you need to take and how can you be sure you won’t make a mistake?
These are all valid questions; luckily, we’re here to answer them.
So, here’s a quick rundown on how to measure roller shades.
Let’s get to it!
Why Is The Proper Fit Important?
Much like our clothes, if you want to get the most out of your shades, they need to fit their space perfectly. Knowing how to measure roller shades accurately ensures they fit your windows flawlessly, enhancing both functionality and style.
The main reason is light control.
If your shades are too narrow for your window, they are going to be letting in more light than they ought to, making them less effective, and sometimes completely ineffective, in the case of blackout shades.
If, on the other hand, they are too wide, they will look too clunky and result in your window appearing smaller than it is, while potentially affecting the overall appearance of the room.
The length is also a factor – too short of a shade will have the same result as a narrow one – inefficient light blocking, while a longer-than-necessary shade will look awkward on the window, with the possibility of creasing and folding when it touches the window sill.
How To Measure Roller Shades
While it may sound intimidating, if you know exactly what to do, taking measurements for your roller shades doesn’t have to be a headache at all.
Keep in mind that these tips are for shades placed inside the recess.

Before the actual process, here are some tips to help you nail your shades to a T:
- Use a steel tape measure. They are the most accurate and least likely to suffer bending, which leads to inaccurate measures.
- Don’t round up or down your measurements too much. A whole or half an inch of rounding up will make a huge difference for the worse. Measuring to the nearest ⅛ inch is what you’re looking to do.
- Measure each window. It’s easy to get too relaxed with these things, but don’t do it! While windows can look identical to the naked eye, they can differ in size. Take measurements for each one to get the best possible results.
Now onto the main topic – how to measure. Here’s what you’ll need measurements for and how to get them.
- Depth of the window frame – from the front of the recess to the glass. There is a minimum depth requirement for inside mounts.
- Window width – only at the top.
- Window height – three places: left, center, right. The tallest measure is the one you’ll need.
- Double check. It’s better to be safe than sorry.
Final Thoughts
Ensuring a proper fit for your roller shades is crucial for both aesthetics and functionality. By following our guide on how to measure roller shades accurately, you can achieve the perfect fit that enhances your space and meets your light-blocking needs.
If you are looking for the best roller shades for your home, The Shade Reserve got you covered!
Whether you prefer the sleek efficiency of solar shades, the total darkness of blackout options, or the convenience of motorized shades, we offer a diverse selection to suit every taste.
Contact us today!