Why accuracy matters for pleated blinds
Pleated blinds bring a soft, elegant finish to any window – but their neat folds only look right when the measurements are spot on. Too tight and the blind won’t glide properly; too loose and you’ll get gaps at the edges. Taking precise measurements at the start ensures a polished look and smooth operation.
Tools you’ll want nearby
Before you begin, grab:
- A sturdy metal tape measure (for accurate readings)
- A pencil for quick notes
- A notepad or paper to record your numbers
- A step stool if the window is tall or awkward to reach
Inside or outside the recess – your choice
Your first step is deciding whether you want your pleated blind to fit:
- Inside the recess (recess fit): The blind sits snugly within the window space for a clean, minimal look.
- Outside the recess (exact fit): The blind is mounted over the opening, overlapping the wall or frame – ideal if you’d like to block more light or cover an uneven recess.
The style you choose will affect how you measure.

Step-by-step instructions for measuring
Measuring the width
- Recess fit: Measure across the inside width of the recess at three points – top, middle, and bottom. Note all three and use the smallest measurement.
- Exact fit: Measure the width of the window opening and add an overlap (usually 7–10cm on each side) to reduce light gaps.
Measuring the drop
- Recess fit: Measure the inside height of the recess in three places – left, centre, and right. Record all three and use the shortest measurement.
- Exact fit: Measure from where you’d like the top of the blind to sit down to your preferred finishing point. Add extra if you’d like fuller coverage.
Double-check your results
It’s easy to misread or mix up numbers, so always go over your figures again. The rule of thumb is simple: measure twice, cut once.
Mistakes to avoid
Here are some common errors worth steering clear of:
- Measuring only once instead of three times
- Forgetting to allow for obstructions such as handles, tiles, or radiators
- Using a fabric or flexible tape that may bend or stretch
- Rounding up or down instead of writing figures exactly as they are
Why professionals can help
Measuring pleated blinds isn’t difficult, but if you’d like peace of mind, it can be worth calling in the experts. With Kelly’s Blinds, you’ll get precise measuring and professional fitting, so your blinds look flawless and work smoothly from day one.
What to do next
Once you’ve got your figures ready, it’s time to explore designs and fabrics. Take a look at the wide range of Pleated Blinds to find the perfect option for your room – whether you want light-filtering softness, blackout practicality, or a touch of modern style.
FAQ – How to Measure Pleated Blinds?
Do I measure in centimetres or millimetres?
Centimetres are fine, but it’s best to note figures down to the nearest millimetre for maximum accuracy.
How much extra should I add for an outside fit?
Adding around 7–10cm on each side of the window is usually enough to block light effectively.
Should I measure every window, even if they look the same?
Yes – no two windows are exactly alike, so measure each one individually for the best results.


