Why careful measuring makes all the difference
Electric blinds combine modern convenience with sleek design – but they’ll only look and work as intended if they fit properly. A blind that’s too wide or too narrow can interfere with the motor mechanism, while the wrong drop may prevent it from closing smoothly. Taking accurate measurements at the start ensures effortless operation and a professional finish.
Tools you’ll need before you start
Keep these essentials close to hand:
- A solid metal tape measure (for reliable accuracy)
- A pencil to jot down your figures
- A notepad or sheet of paper
- A step stool if your windows are tall or hard to reach
Inside or outside the recess – choosing your style
Electric blinds can be fitted in two ways:
- Recess fit (inside the window opening): Creates a neat, tailored look with the blind sitting snugly inside the recess. Ideal for a minimalist finish.
- Exact fit (outside the recess): The blind is mounted over the frame, overlapping the wall for greater light control and to disguise uneven surrounds.
The option you choose will determine how you measure.

Step-by-step guide to measuring
Measuring the width
- Recess fit: Measure the internal width of the recess at three points – the top, middle, and bottom. Record all three and use the smallest measurement for a comfortable fit.
- Exact fit: Measure the width of the window and add extra on both sides (typically 7–10cm each) to block out light effectively.
Measuring the drop
- Recess fit: Measure the inside height of the recess at three points – left, centre, and right. Note all three and use the shortest measurement to avoid snagging.
- Exact fit: Measure from the top point where you’d like the blind to sit down to your chosen finishing point. Consider adding extra length for full coverage.
Double-checking your figures
With motorised blinds, precision is even more important. Always double-check your numbers – remember: measure twice, cut once.
Common errors to avoid
Some of the typical mistakes include:
- Measuring in only one spot instead of three
- Forgetting to allow for obstructions such as handles, tiles, or radiators
- Using a cloth tape measure that can sag or stretch
- Rounding figures rather than writing them exactly
Why calling in the experts helps
While it’s possible to measure yourself, electric blinds demand spot-on precision. For guaranteed results, it’s worth leaving it to the professionals. Kelly’s Blinds offer expert measuring and fitting services, ensuring your electric blinds are installed perfectly and work seamlessly from day one.
What to do after measuring
With your measurements sorted, you can start browsing the collection to find your perfect style. Explore the modern range of Electric Blinds and choose from designs that bring both practicality and sophistication to your space.
FAQ – How to Measure Electric Blinds?
Do I need to measure differently for electric blinds compared to manual ones?
The process is essentially the same, but precision is even more important to ensure smooth motorised operation.
How much overlap should I add for an outside fit?
Allow around 7–10cm on each side to minimise light seepage and ensure full coverage.
Should I check each window individually?
Yes – even windows that appear identical can vary slightly, so always measure each one separately.


