Half Price Vertical Blinds

Vertical Blinds Measurement Guide

Measuring your windows to decide which size of vertical blind to order is easy. Just follow these simple steps. Please use a metal tape measure to take measurements and use centimetres to the nearest 0.1cm.

Video Guides

Bay Window Measurements

We have created a document showing detailed instructions on measuring your bay window for our vertical blinds.
View PDF


Recess Measurement

Used when the vertical blind is to be fitted inside the window recess. When selecting ‘Recess Size’, we will make all deductions.

Recess Width:

  • Measure in 3 places across the window recess, take the smallest measurement and enter this as the width (in cm).
  • From the width of the blind, we will deduct 1.5cm. This is to ensure that the blind will fit inside the recess without being too tight.

Recess Drop:

  • Measure in 3 places down the window recess, take the smallest measurement and enter this as the width (in cm).
  • From the drop of the blind, we will deduct 1cm. This is to ensure that the blind will fit inside the recess without touching the window sill.
  • The headrail is included in the drop of the blind therefore the louvres will be shorter than the drop.

Exact Blind Measurement

When selecting ‘Exact Blind Size’, no deductions will be made. Exact Blind Size is normally used selected when the blind is to sit outside of the recess.

Exact Blind Width (also known as pin width or finished blind width):

  • The width of the blind will be made to the width ordered.
  • Measure the width that you require the blind to be (we recommend 75mm [3”] at each side of the recess for minimum light bleed.)

Exact Blind Drop:

  • The drop of the blind will be made to the drop ordered. Measure the drop that you require the blind to be (we recommend 75mm [3”] at the top and bottom for minimum light bleed.
  • The headrail is included in the drop of the blind therefore the louvres will be shorter than the drop.

louvre's Only

When selecting Louvres Only, no deductions will be made. Used only for the replacement of louvres when you have the headrail and fixings already.

  • Measure the louvres exact, from the top of the material to the bottom.
  • The number of louvres you would require is the amount you currently have hanging.

All of our louvres are 89mm (3.5”) in width.


Measuring for 2 blinds in 1 window

When 2 vertical blinds are to be hung in one window recess, we would recommend taking the measurement of the recess as normal.

Then if it is an even split, halve the measurement and deduct 1cm from each.

Eg: If the recess is 196cm, half is 98cm less 1cm. The blinds would be ordered at 97cm wide EXACT BLIND SIZE.

As Exact Blind Size is being used, when measuring the drop, take the recess measurement as above and deduct 1cm for clearance.

Eg: Recess drop is 176.5cm, less 1cm. The blinds would be ordered at 175.5cm EXACT BLIND SIZE

If you have any other queries about installation or measurements, please feel free to contact us.