How to calculate the right size needed for ready made curtains please?

[MaggieW]

The window is around 115cm wide and 175cm deep from outer edge of architrave to outer edge of architrave. I can worth out the correct drop for the curtains but how much curtain should I have for the width please? The options are 117cm width x 182 drop or 165cm width x 182cm drop. TIA.

The width of the curtains should normally be 1.5 to 2 times the width of the window. Is there another width of curtains available because even the larger one will be a bit on the small side.

You want a minimum of 172.5cm which is one and a half the width of the window.

To be honest I would not have anything less that 230cm width in total

Now if you are buying a pair of curtains than aslong as each one measure 117 you would be fine!

Also what type of style, as some styles you might want more or less width on.

HTH

Thanks. The style is pencil pleat top to go on a track. Here they are
www.johnlewis.com/little-home-at-john-lewis-finlay-stripe-pencil-pleat-blackout-lined-robot-curtains-pair-blue/p284676

For what it's worth, they have blackout lining. Only other width available is 116cm.

My Mum used to say twice the width. its always worked for me.

Ahh, have just seen the product information and it says width relates to a single curtain, so If I get the 117cm then I should be okay, right?