Roman Blind Measuring

New! London measuring service. details here.

How to measure for Roman blinds

We advise using a metal tape measure for accuracy. Measurements should be in cm to the nearest 1/2 cm. Please double-check your measurements. We recommend a side winder mechanism for blinds over 180cm.

Measuring for Roman blinds in a bay window:

- Remember that your roman blind will protrude from the surface by 5cm.
- Where the angles of the window meet you must allow for the headrails to protrude - so don't measure all the way into the corner. Get a helper to hold a ruler or tape protruding 5cm and measure up to this point and deduct 1cm.
- Remember that centre blind will have a headrail on both sides so deduct 1cm from each side for this blind.
- Think about where your strings/controls will hang. If you have four blinds you may want two to operate on the left hand side and two on the right hand side.
- We recommend having sidewinder operated blinds in bay windows becasue there are no cleats and strings to worry about.

If in any doubt about what to do, please call us for advice.

The three scenarios for measuring blinds are:

1. Inside Recess

1. Measure width A-B at the narrowest point so your blind can hang freely
2. Measure Drop C-D
3. Note which side you would like the cord – right or left

Where possible fix to the ceiling 6cm infront of the window. This will allow the blind folds to fold up neatly behind.

2. Outside Recess

First check for obstructions that might stop your blind hanging freely and then decide on the amount of fabric to overlap the top and sides of the window recess. We recommend at least 5cm for both.

1. Measure the width you decide on, A-B
2. Measure the drop you decide on, C-D
3. Note which side you would like the cord – right or left

Where possible fix to the ceiling 6cm infront of the window. This will allow the blind folds to fold up neatly behind.

3. Fixed To Window Architrave (Frame)

First, decide whether you want your roman blind to hang on the outside or inside edge of the window architrave.

1. Measure the width A-B
2. Measure drop C-D
3. Note w


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Tips and Suggestions

Choose lined & interlined if you want the classic curtain.

Use blackout lining if you would like to sleep longer.

Use thermal lining if you want to minimise your energy bills.