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Roller Blinds Measurement Guide


Here at Roller Blinds Direct, we think measuring for your new blind should be as easy as 1,2,3. This is why we have created a simple guide for you to follow.

To help you with your measurements you will need a metal tape measure.

All your measurements need to be in centimetres and also to the nearest 0.1cm.

Our fabric experts recommend when ordering a blackout blind, that you fit this outside the window recess using the exact blind measurements. This ensures it blocks out as much external light as possible. Just follow the measuring guide below, and we will take it from there!


Recess Measurement

Select this option when you would like your roller blind to fit within the window recess.

Recess Width

Take 3 measurements for the width of the window recess as shown in the picture.

Take the smallest of these measurements. This is your recess width.

We will make the necessary deductions for the mechanisms, brackets and clearance to ensure the blind operates within the window recess.

Please note that the actual fabric will be approximately 3-4cm narrower than the recess width depending on the blind ordered. See diagram C below.

Recess Drop

Take 3 measurements for the drop of the window recess as shown in the picture.

Take the smallest of these measurements. This is your recess drop.


Exact Blind Measurement

Select this option when you would like your roller blind to fit outside the window recess

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

Decide how much you wish to overlap the recess at each side. We recommend at least 7.5cm each side to minimise as much external light as possible

Take the overall width measurement including the overlap. This is the Exact Blind Width.

Note: This width includes the mechanism of the blind and is not the width of the cloth. See diagram C below

Exact Blind Drop

Decide how much you wish to overlap the recess at the top & bottom. We recommend at least 7.5cm at the top, if the blind is required to roll up fully above the window recess.

Take the overall drop measurement including the overlap. This is your Exact Blind Drop.


Cloth Measurement

Select this option when the cloth size on the roller blind is important.

Cloth Width

Measure the width that you require the blind cloth to be.

The full width of the blind when the fittings are applied will be wider than the cloth width. See the diagram.

Cloth Drop

Take the overall drop. This is the same as the Exact Blind Drop.

Decide how much you wish to overlap the recess at the top & bottom. We recommend at least 7.5cm at the top, if the blind is required to roll up fully above the window recess.

Take the overall drop measurement including the overlap. This is your Exact Blind Drop.


Roof Blinds

Measuring for your roof blind is easy - most of the time you won't even need a tape measure. All you need to do is open up your window, and as you swing it you'll see a small metal patch on the top. This has the brand name of your window and a code. This will differ depending on the make of your window.

Velux

There are a number of letters and digits on the Velux plate, but you're only interested in the first six or seven. These are split into two sets. The first of these sets will be three letters long, for example "GGU", and is your "Window Type" code. Next to that code will be another one which is three or four characters long, and will look like "C01" or "PK35". This is the "Size" code. Simply select these codes on our website when you are filling out your order.

Fakro

On a Fakro plate you will see two numbers divided by a slash or an "x" like this: 78/98 or 78x98. These are the dimensions of your window in centimetres - the first number is the width, and the second number is the height.

Dakstra or Rooflite

Both Dakstra and Rooflite windows have one short code on the sash which is three characters long. It starts and ends with a letter, with a number in between, such as "C2A". When you are purchasing your blind, enter this code when you are prompted to choose your side.


Bay Windows

Please follow the link below for measuring a angled bay window for your roller blind

Angled Bay Window

Please follow the link below for measuring a box bay window for your roller blind

Box Bay Window

All our blinds come with all the fittings you'll need, along with instructions for easy installation. If you have any other queries about installation or measurements, please feel free to contact us.