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How to Measure for Curtains, Blinds and Voile Panels

This page details measuring information, for detailed product information, please click here.

Measuring for curtain width

Always measure the curtain track or pole width, not the window. If fitting a new track or pole, this should extend 15cm to 30cm either side of the window (to allow the curtains to be stacked back off the window) and 12cm to 15cm above the window recess.

Curtain tracks
Curtain width

Measure from end to end - A

If you have a rail with a centre overlap, measure the rail as above then measure the overlap and add the two measurements together.

Curtain width
A + B = Total track width

Curtain poles
Measure between the decorative ends-C

Curtain width

Measuring for curtain drop

Curtains are best hung either to the floor, to a sill or below the sill. We recommend that curtains finish either -

  • A. 1cm above the floor

  • B. 15-20cm below the sill (or 2cm above the radiator)

  • C. 1cm above the sill


Curtain drop

Always measure in at least 3 positions across the track or pole as floors and sills are rarely level. To avoid curtains dragging across the floor or sill we recommend you use the shortest of these 3 measurements.

Pencil Pleat & Pinch Pleat headings

Tape When using a curtain track, measure from the top of the track to where the curtain is to finish. When using a curtain pole, measure from the underside of the decorative ring to where you want the curtain to finish.

Tab Top heading

Tab Top headings have 10cm long tabs (included in the curtain drop) and are suitable for poles up to 45mm in diameter. Measure from the top of the pole to where you want the curtains to finish.

Tab top

Eyelet heading

The eyelet will fit poles up to 30mm in diameter. The inner edge of the eyelet is set down 3cm from the top of the curtain. Measure from the top of the pole to where you want the curtains to finish and add 3cm.



Please measure the valance rail width (not the curtain track width). This is normally 30cm wider than the curtain rail it is fitted to, due to the returns on either end.


Valance rail width = A + B + C


Measuring for Roman blinds

Blinds may be fitted either inside or outside the window recess. If a blind is being fitted inside a recess, please quote 'recess size' on the order form and we will make an adjustment for a perfect fit at the time of manufacture. 

If a blind is being fitted outside a recess, please quote 'blind size' on the order form and the blind will then be manufactured to the size quoted. If more than one blind is being fitted on the window please quote the size of each individual blind rather than the overall recess size. 

When deciding whether to fit the blind inside or outside the recess consider the following points.

It will be necessary to fit the blind outside the recess if :

  • The recess is less than 7.5cm (3") deep.

  • The window opens inwards.

  • The window is not straight (if the width or height varies by more than 2cm (3/4"). 

Measuring for a recess fitting

Measuring for a recess fitting

When measuring the window recess: 

  • Always use a metal tape measure and measure in centimetres.

  • Measure the width and the drop in at least three positions, taking account of any protrusions such as tiles and dado rails.

  • Make a note of the smallest width and drop measurement.

  • Please quote width and drop sizes in centimetres stating 'recess size' on the order form.


Measuring outside a window recess

Measuring outside a window recess

When measuring for a bind fitting outside a recess:

  • Always use a metal tape measure and measure in centimetres.

If the blind is being fitted outside the recess allow the blind to extend approximately 10cm either side and 10cm above and below the window.


Voile Panels

  • Unless otherwise stated all our voile panels come with a net pleat heading, which is a 5 cm transparent pencil pleat tape. 

  • It is a multi purpose tape that allows the panels to be hung from a track/pole like normal curtains, or with a net rod/wire like nets.

  • We recommend between 2 and 2.5 times gather.

  • To work out the number required, multipy the width of the track by 2 or 2.5. divide by the width of the panel (normally 150 cm). 

  • Round up or down to the nearest whole number depending on how much gather you require.

  • If you need help please email: info@curtainscurtainscurtains.co.uk or call us on 01953 603529. 



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