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Measuring For Cassette Roller Blinds

Wooden Blinds
Vertical Blinds
Roller Blind
Double Roller Blind
Cassette Roller Blind
Roman Blind
Motorised Wooden Blind
Motorised Roller Blind
Motorised Cassette Roller Blind
Motorised Roman Blind
Day & Night Blind
Venetian Blind
Perfect Fit Blind
Pleated Blind
Roof Blind

Select Your Window Type

Standard Window

Choose your fit

Multiple fitting options are available for standard windows.

Choose from the options below

Option 1: Inside Recess
Follow the steps below to install your blind within your window recess. Recommended
Option 2: Exact Size
Follow the steps below if you know your exact width and drop requirements.
Option 3: Split Window
Span a single window recess using multiple blinds. An excellent choice for windows that are larger or have a clear split.

Inside Recess

Step 1 – Width Measurement

Step 1 – Width Measurement

Measure the width of the recess in at least three places where you would like to install your blind. You will use the smallest of these figures as your width measurement when ordering your blind.

Important!

Depth check – To allow sufficient room for your blind to operate, it’s important that there is a minimum of 85mm depth clearance (if you are top-fixing the brackets) or 95mm depth clearance (if you are face-fixing the brackets) between the farthest point of any obstruction and the front of the recess.

Check for width obstructions – Any obstructions in your recess (tiles, etc.) may reduce its effective width. Find the effective width by measuring between these points. If your top recess measurement is at least 40mm greater than this figure, then use the effective width figure when ordering your blind. Otherwise, use the top recess measurement as your width measurement as explained above. (For example: if the bottom of your recess measures 970mm and the top measures 1000mm, you would enter your top width measurement as the fabric width would clear the obstruction. This is because the top recess measurement is only 30mm (less than 40mm) greater than the bottom measurement.)

Please note: The fabric, including the bottom bar, will be approximately 48mm narrower than the recess measurement provided.

Step 2 – Drop Measurements

Step 2 – Drop Measurements

Measure the recess height where you intend to install your blind, measuring at three separate points. Use the smallest of these figures as your drop measurement when making your order.

Step 3 – Recess Fitting Option

Step 3 – Recess Fitting Option

When ordering your blind, select the “Recess” fitting option. We’ll then adjust the measurement to allow for the appropriate brackets.

HAPPY MEASURING? SHOP CASSETTE BLINDS

Exact Size

Step 1 – Width Measurement

Step 1 – Width Measurement

How far on each side do you want your blind to overlap your window recess? Be sure to include this overlap when making your width measurement.

Important!

Overlap – For optimal results, we recommend a 100mm overlap on each side of the window recess. This entails adding an extra 200mm to your width measurement (on top of the recess width). Keep an eye out for potential obstructions, like light switches, to ensure the blind’s overlap doesn’t conflict with any objects.

Improved light exclusion – Your blinds will eliminate light from outside more effectively if the overlap is greater.

Please note the width of the fabric will be approx 39mm less than the Box Size measurement provided.

Step 2 – Drop Measurements

Step 2 – Drop Measurements

First determine where you’d like your headrail and bottom bar to be positioned. Measure the distance between these two heights, from the top of the headrail to the bottom of the bottom bar, and use this as your drop measurement when ordering your blind.

Important!

Overlap (top) – We suggest an overlap of at least 100mm beyond the top of the window recess.

Overlap (bottom) – Top tip: Obstructions, such as a radiator, may limit your bottom overlap. If the window sill protrudes by over 50mm, your bottom bar should be placed at this point. Otherwise, the amount of bottom overlap is a matter of personal taste.

Step 3 – Exact Fitting Option

Step 3 – Exact Fitting Option

Select the “Box Size” fitting option when ordering your blind for your window. Please note the width of the fabric will be approx 39mm less than the Box Size measurement provided.

HAPPY MEASURING? SHOP CASSETTE ROLLER BLINDS

Option 3: Split Window

Step 1 – Split Point

Split just window annot 1 cbryew

Step 1 – Split Point

Mark with a pencil the point where you’d like to split your blinds.

Handy Suggestions

Your split point – Though the centre of the window is often the natural split point, a different place may be chosen to accommodate a mullion or window/door frame.

Important note – To make room for the brackets, there will be a small gap between each cassette box. Remember, this will then mean you will have at least 48mm – 53mm between the fabric sections.

Step 2 – Width Measurements

Step 2 – Width Measurements

If installing within the window recess, measure the distance between your split point and the edge of the recess. Use this figure as your width measurement when ordering your blind.

Important!

Outside your recess – If you’re installing your roller blinds in front of your recess, rather than inside it, measure between the split point and the place you’d like your blind to finish.

Check your depth – To allow sufficient room for your blind to operate, it’s important that there is a minimum of 85mm depth clearance (if you are top-fixing the brackets) or 95mm depth clearance (if you are face-fixing the brackets) between the farthest point of any obstruction and the front of the recess.

Check for any width obstructions – Any obstructions in your recess (tiles, etc.) may reduce its effective width. Find the effective width by measuring between these points. If your top recess measurement is at least 40mm greater than this figure, then use the effective width figure when ordering your blind. Otherwise, use the top recess measurement as your width measurement as explained above. (For example: if the bottom of your recess measures 970mm and the top measures 1000mm, you would enter your top width measurement as the fabric width would clear the obstruction. This is because the top recess measurement is only 30mm (less than 40mm) greater than the bottom measurement.)

Mind the gap – To make room for the brackets within your window recess, your split blinds will have a small gap at the top (around 5mm), determined by the distance between the central brackets. This will create a gap of at least 48mm – 53mm between the adjacent fabric sections.

Step 3 – Drop Measurements

Split just window annot 3 lzdhfy

Step 3 – Drop Measurements

Measure the height of your recess at multiple points, and use the smallest measurement as the drop when ordering your blinds.

Outside your recess – If you’re installing your blinds in front of your recess, rather than inside it, measure between where you would like to place the top and bottom of your blinds.

Check for any drop obstructions – We suggest an overlap of at least 100mm beyond the top of the window recess.

Overlap (bottom) – Top tip: Obstructions, such as a radiator, may limit your bottom overlap. If the window sill protrudes by over 50mm, the bottom of your blind should be placed at this point. Otherwise, the amount of bottom overlap is a matter of personal taste.

Step 4 – Fitting Option

Step 4 – Fitting Option

If your blinds will lie within the recess, select the “Recess” fitting option; if your blinds will sit outside the recess, select the “Box Size” fitting option. This lets us know to adjust the measurement to make room for the appropriate brackets.

HAPPY MEASURING? SHOP CASSETTE ROLLER BLINDS

Angled Bay Window

Step 1 – Calculate Depth

Step 1 Check for obstruction rkmqx5

Step 1 – Calculate Depth

Obstruction Depth

For any obstructions, such as vents or handles, measure their furthest point from the window frame. This is the obstruction depth.

Total Depth Calculation

Total Depth Calculation

To calculate your total depth, add the obstruction depth to the clearance needed for your blinds (85mm clearance if you are top-fixing the brackets, or 95mm clearance if you are face-fixing the brackets). This new figure is your total depth.

Useful Suggestions

Example – For a window handle protruding 46mm from the window frame, the calculation for a top-fixed roller blind would be as follows: 85mm + 46mm = 131mm total depth.

Make a note of the total depth – It’s important that you have this figure for the later steps.

Do you have guide templates?

If you ordered blind samples, the templates should be included in your sample box.

Choose from the options below

Option 1: I've got the guides
This will make it simpler to measure for your bay window blinds.
Recommended
Option 2: I will make my own
Create your own measuring templates by following these simple steps.

Step 2 – Measuring Templates

Step 2 Measuring Templates in ive got the guides dckldg

Step 2 – Measuring Templates

We offer measuring templates for bay windows (opt for these when ordering samples).

If you have your measuring templates, use a pencil or pen to mark them at the total depth – i.e. the obstruction depth plus the relevant measurement on the bay measuring guide (85mm clearance for roller blinds if you are top-fixing the brackets, or 95mm clearance if you are face-fixing the brackets).

Step 3 – Mark Your Measuring Points

Step 3 Mark your measuring points in ive got the guides aklcmx

Step 3 – Mark Your Measuring Points

Note: Check for obstructions like handles, and add their depth to the blind depth.

1.Lay the measuring cards flat on the window sill on either side of a bay corner.

2.Bring the cards together, aligning the tops with the window frames, until the total depth marks touch.

3.Keeping the cards flush to the window frames, use a pencil to mark where the total depth marks touch the window sill.

4.Repeat for each bay corner.

5.Mark end points based on your preference, being mindful of any obstructions.

Step 4 – Width Measurements

grey f4f6f5 sdyog7

Step 4 – Width Measurements

Now, you have measuring points at each corner and two end points. Measure the distance between the two points for each window. This is the width measurement for ordering each blind.

Step 4 Width measurements end points zcoifa

End Points

Measure the distance between the two measuring points for each window. This will give you the width measurement to use when ordering each blind.

Step 5 – Drop Measurements

Step 5 – Drop Measurements

For each window, measure the drop in three places. Use the smallest of these measurements as your drop figure when ordering your blind.

Step 6 (Final Step) – Recess

Step 6 (Final Step) – Recess

Select the “Recess” fitting option when you order each blind for your bay window. This lets us know to adjust the measurement to make room for the appropriate brackets. Please note: The fabric width will be approximately 48mm less than the provided recess measurement. This allows the blind to operate freely when installed.

HAPPY MEASURING? SHOP CASSETTE ROLLER BLINDS

Step 2 – Measuring Templates

Pencil marking 2 exh36c

Step 2 – Measuring Templates

Here’s how you can create your own measuring templates using paper and a pen or pencil:

1. Lay two sheets of paper side by side.

2. With a ruler or tape measure, mark both sheets at the total depth (calculated in Step 1).

Step 3 – Mark Your Measuring Points

Step 3 Mark your measuring points manual yb7ubs

Step 3 – Mark Your Measuring Points

Please be aware: Inspect your window for obstructions like handles or vents. Include the depth of any obstruction to your blind’s depth.

1.Position measuring cards flat on the window sill at each side of a bay corner.

2.Align the cards, tops flush against the window frames, until the total depth marks touch.

3.Keep the cards flush and total depth marks in contact, marking the sill where they meet.

4.Repeat for each bay corner.

5.Mark your end points, being aware of any obstructions. These determine where your blinds will fit on each side.

Step 4 – Width Measurements

grey f4f6f5 sdyog7

Step 4 – Width Measurements

Now, you have measuring points at each corner and two end points. Measure the distance between the two points for each window. This is the width measurement for ordering each blind.

Step 4 Width measurements end points zcoifa

Measure the distance between the two measuring points for each window. This will give you the width measurement to use when ordering each blind.

Step 5 – Drop Measurements

Step 5 – Drop Measurements

For each window, measure the drop in three places. Use the smallest of these measurements as your drop figure when ordering your blind.

Step 6 (Final Step) – Recess

Step 6 (Final Step) – Recess

Select the “Recess” fitting option when you order each blind for your bay window. This lets us know to adjust the measurement to make room for the appropriate brackets. Please note: The fabric width will be approximately 48mm less than the provided recess measurement. This allows the blind to operate freely when installed.

HAPPY MEASURING? SHOP CASSETTE ROLLER BLINDS

Square Bay Window

Choose from the options below

Option 1: Front Primary
The front blind spans the entire width of the bay, with the two side return blinds sitting behind.
Option 2: Side Primary
The front blind is positioned between the two side blinds, each of which span the full depth of the bay.

Front Primary

Step 1 – Width Measurement

Step 1 Front hcluob

Step 1 – Width Measurement

Measure the total width of the bay’s front window, including the frame. Use this figure as your width measurement when you order your front blind.

Important!

Obstruction depth – For any obstructions, such as vents or handles, measure their furthest point from the window frame. This is the obstruction depth; please make a note of this figure.

Step 2 – Depth Calculation

Step 2 – Depth Calculation

To calculate your total depth, add the obstruction depth (previously calculated) to the clearance needed for your blinds (85mm clearance if you are top-fixing the brackets, or 95mm clearance if you are face-fixing the brackets). This new figure is your total depth.

Useful Suggestions

Example – For a window handle protruding 46mm from the window frame, the calculation for a top-fixed roller blind would be as follows: 85mm + 46mm = 131mm total depth.

Make a note of the total depth – It’s important that you have this figure for the later steps.

Step 3 – Mark the Total Depth

Step 3 Mark total depth wwb4al

Step 3 – Mark the Total Depth

Mark the total depth  with a pencil on either side of your square bay window, as shown. In later steps, these marks are referred to as “total depth marks”.

Step 4 – Side Window Measurements

Step 4 Step 4 a Side Window Measurements sfadat

Step 4 – Side Window Measurements

Measure the distance from your total depth mark to where you want the return blind to end. This is your width measurement for ordering the return blind. Repeat for the other side of the square bay, ensuring you have a width measurement for each side blind.

Step 5 – Drop Measurements

Step 5 – Drop Measurements

Measure the height of the bay in at least three locations where you want to install your blind. Use the smallest of these figures as your drop measurement when ordering your blinds.

Step 6 – Recess Fitting Option

Step 6 – Recess Fitting Option

Select the “Recess” fitting option when you order each blind for your bay window. This lets us know to adjust the measurement to make room for the appropriate brackets. Please note: The fabric width will be approximately 48mm less than the provided recess measurement.

HAPPY MEASURING? SHOP CASSETTE ROLLER BLINDS

Side Primary

Step 1 – Width Measurement for the Sides

Step 1 a Width Measurement for the Sides wjg6ci

Step 1 – Width Measurement for the Sides

Measure the entire width of the bay’s side windows, including the frames. Use these measurements as your width references when ordering your side blinds.

Important!

Obstruction depth –
Identify any obstructions, such as vents or handles, and measure their farthest point from the window frame. This measurement represents the obstruction depth. Measure and note the obstruction depth for each of your side windows; you’ll need these figures for later.

Step 2 – Depth Calculation for the Sides

Step 2 – Depth Calculation for the Sides

To calculate your total depth, add the obstruction depth (previously calculated) to the clearance needed for your blinds (85mm clearance if you are top-fixing the brackets, or 95mm clearance if you are face-fixing the brackets). This new figure is your total depth. Perform this calculation for each side window.

Useful Suggestions

Example – For a window handle protruding 46mm from the window frame, the calculation for a top-fixed roller blind would be as follows: 85mm + 46mm = 131mm total depth.

Make a note of the total depth for each side window – It’s important that you have these figures for the later steps.

Step 3 – Mark the Total Depth

Step 3 Mark total depths psb4cg

Step 3 – Mark the Total Depth

Mark the total depth on either side of your square bay window using a pencil. These marks are referred to as “total depth marks” in later steps.

Step 4 – Width Measurement for the Front

Step 4 side rbgi1n

Step 4 – Width Measurement for the Front

Measure the distance between your two total depth marks. When ordering your front blind, use this figure as your width measurement.

Step 5 – Drop Measurements

Step 5 – Drop Measurements

Measure the recess height where you intend to install your blind, measuring at three separate points. Use the smallest of these figures as your drop measurement when making your order.

Step 6 – Recess Sizing

Step 6 – Recess Sizing

Select the “Recess” fitting option when you order each blind for your bay window. This lets us know to adjust the measurement to make room for the appropriate brackets. Please note: The fabric width will be approximately 48mm less than the provided recess measurement.

HAPPY MEASURING? SHOP CASSETTE ROLLER BLINDS

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