• Delivered in 3 to 5 working days.
  • Chain Operated
  • Up to 4.8m
  • Same Day Dispatch
  • in time for christmas In Time for Christmas
Delivered in 3 to 5 working days.
Chain Operated
Up to 4.8m
Same Day Dispatch
In Time for Christmas

Bosa Magnolia Blackout XXL Cassette Blind

Select your operation

  • White Hardware
    White Hardware
    Standard Price
  • Black Hardware
    Black Hardware
£ 348.44
- +
order free sample

Delivered in 3 to 5 working days.

Available in Other Colours
Available in Other Colours
Product Description
Product Description

The Bosa Magnolia XXL Blackout Cassette Blind is our Total Blackout solution to cast your room into complete darkness. The barrel and blackout fabric are neatly enclosed within the aluminium headbox and side channels ensure the edge of the fabric stays in place. As a result, this blind creates a light omitting seal, blocking light from entering the room.

Our total blackout cassette blinds are perfect for any room you are looking to banish daylight. From Bedrooms to Home Cinema Rooms, our cassette blinds will provide you with complete darkness all year round.

The Bosa Magnolia fabric is a Cream coloured blackout fabric made from Polyester. It is operated by a nickel chain that protrudes through the bottom of the headbox. This cassette blind can go to a maximum width of 4800mm.

Due to the nature of the light omitting seal created by this blackout blind, windows must be closed while this blind is down. Opening a window behind the blind could cause a vacuum resulting in the fabric being sucked from the side channels and resulting in damage to the blind.

Available in either a White or Black hardware finish full technical specifications can be found in the Geeky Stuff section below.

Not quite the right Blackout Cassette Blind option for you? Click here for a full listing of our Blackout blinds, and use the filters to help narrow your search.


Technical Specifications
Technical Specifications

Technical Specifications

Click here to download our full datasheet which includes sizing charts along with component line drawings. 🤓

Our Blackout cassette blinds are designed first and foremost to provide total darkness in a room by creating a sealed unit in or around the window.
To fit this blind you will be required to drill multiple holes, not just into the masonry you’re fitting to, but into the headbox and side channels themselves as they don’t come pre-drilled. The reason for this is that you will need to ensure the entire blind sits squarely within a recess or against the wall, so you will need to decide where to specifically screw the blind to the wall.
The cassette blind is comprised of an aluminium headbox fascia in which the fabric on a barrel is held. Aluminium side channels run from top to bottom and are attached to the headbox. The fabric has fabric retaining pips attached to it and these pips are what hold the fabric in the side channels.
Important: When the blind is in operation the window must be shut. Failure to close the window when the fabric is anywhere but fully rolled up can cause the fabric to be pulled out of the side channels. This can damage the fabric or the side channel and the warranty will be voided. Do not operate this blind with an open window. If you install this blind on behalf of someone else, please inform them.
At the bottom of the fabric is the bottom bar that has a pile seal on the bottom of it. This helps to form a barrier against light at the bottom of the window when it sits on the bottom fixing strip.

The headbox measures 140mm high and 120mm deep.
The side channels measure 55.3mm wide and if recess fitted, the side channels are 29.5mm deep, and if face fitted, they are 25.2mm deep. Please note, recess-fit side channels cannot be used for face fitting, and vice-versa as they are different.
The bottom fixing strip is 25mm tall and 21mm deep and will match the chosen hardware colour. This L-shaped metal strip is there to allow the bottom bar to sit just in front of it, thus creating another barrier between the window and the room.

The hardware is available in white or black and this blind is operated by a nickel chain that can be on the left or right side of the blind.

We expect our cassette blinds to provide darkness in your room for standard use. However, we are not able to guarantee absolute darkness due to differences in installation, location and light direction. Every care and attention has been made to engineer this type of blind to give maximum levels of darkness.

Click here to download our full datasheet which includes sizing charts along with component line drawings. 🤓

Blackout Chain Controlled Roller Blind Cassette System in Action


How To Measure
How To Measure

How to Measure

Now, you can’t mess this one up. It’s what we call ‘easy’ here at DotcomBlinds. But just in case you need some help, follow this quick guide.

First thing's first, identify whether your blind is going inside or outside of a recess. 

Inside the recess

A recess fit blind means you supply us with the width and drop of your recess – from top to bottom and wall to wall. We make deductions to account for the brackets to ensure your blind fits within the recess perfectly.

To measure a roller blind to fit inside the recess of your standard window, simply measure the full width and the height of the recess. Then input those measurements into the product page with your order selecting the ‘recess’ option. We’ll do the rest, leaving you the well-deserved excuse to put your feet up, you worked hard for it after all!

Don’t be tempted to deduct any measurements, we do this for you. Make sure you use a metal tape measure; a cloth one can stretch and give you more millimetres per centimetre than a pound-shop ruler. Also, take your measurements in three places and give us the smallest (if there is a smallest). You will find that some recesses shift and settle over time.

Outside the recess

A blind going outside of a recess is usually called an exact fit blind. An exact fit blind means we won’t make any deductions to the width or drop measurements. Exact fit is the bracket to bracket measurement and is commonly found installed outside of a recess. The size you give us is the size your blind is made to.

If you want your blind to hang outside the recess, measure the height and width but be sure to add some overlap to reduce light leakage. This overlap should be about 70mm at the top and bottom and 50mm each side, ensuring you suffer no dazzling strips of sunlight once your blind is happily installed. Please select the ‘exact’ size option when ordering. 

How To Install
How To Install

How to Install

Planning the installation of your Cassette Blind? Good call!

🛠 Click Here to download our nifty Cassette Blind Fitting Guide! 🛠

Shop with Klarna
Shop with Klarna

Buy Now Pay Later with Klarna

DotcomBlinds is pleased to be partnered with Klarna, providing you with more ways to pay.

At the checkout you will see Klarna provides two options: Pay in 3 Instalments or Pay Later.

Pay in 3 Instalments

With Klarna’s option to pay in three instalments, you can spread the cost of your purchase across three interest-free monthly payments.
To pay with Klarna’s ‘Pay in 3 Instalments’ option, you just need to be a UK resident over the age of 18 years old and have a valid payment card.

Pay Later In 30 Days

The second Klarna payment option you’ll find in the checkout is to buy now & pay later with their ‘Pay Later in 30 Days’ option at the checkout.
With this payment option, you make your purchase now and don’t pay until 30 days after we have shipped your product to you, giving you plenty of time to save up!
To pay with Klarna’s ‘Pay Later in 30 Days’ option, you just need to be a UK resident over the age of 18 years old and have a valid payment card.

If you have any questions, please don’t hesitate to get in touch with us.

Next Day Free Samples
3 Year Warranty
3 Year Warranty

3 Year Warranty

A blind from DotcomBlinds is made to the highest standards, designed to provide you with years of service and shade.
In fact, we’re so confident and proud of our blinds, we offer a 3 year warranty on all our blinds. This is one of the longest warranties available and a clear sign of the quality of our blinds.

Obviously, there are a few exclusions:
✖ Damage caused by poor installation/not following fitting instructions (don’t worry, installation is easy, read this.)
✖ Misuse or Failing to maintain the blind
✖ General wear and tear and fading (these blinds are exposed to very intense UV rays)
✖ Alteration to the blind
✖ Exposure to the elements or fitted in an unsuitable location (these are indoor blinds!)

However, if your blind stops functioning for any reasons other than those listed above, get in touch. Our warranty covers:
Manufacturing defects
Fabric/slat colour fading within a year
Mechanical malfunction
2 year warranty on battery and mains electric motors used in electric roller blinds

So, in summary, avoid grossly mistreating your blind, show it a little TLC every so often and don’t use it in ways it wasn’t intended. If you do all those things and something goes wrong with the blind, you’re golden – we’ve got you covered and we’ll and repair or replace it free of charge.

Moisture resistant blinds are ideal for bathrooms and kitchens where there may be a lot of moisture present. Our Moisture Resistant material is rot-proof and Biosafe®. This is because it will not absorb and retain any water under normal circumstances, which is key to preventing the build-up of bacteria or mold in these warm, damp spaces.

We offer a range of moisture resistant blinds – including bathroom blinds, kitchen blinds, and roller blinds. With our measuring guides and unparalleled customer service, you can ensure your blinds are perfect for the room they are used in. 

 

Moisture Resistant

These blinds are super easy to clean and perfect for busy households; simply wipe over with a dry cloth to remove dust and any debris or use a damp cloth to remove stains. Ideal for homes with kids or areas close to food preparation (including use around the kitchen sink). Please consider the type of fabric best suited to the situation, for example, PVC fabric blind may be a better choice is you plan to clean your blind more vigorously. If you’re unsure of the type of fabric you will need, please feel free to order as many free samples as you need.

Wipe Clean

Fire retardancy is a worthy feature to look out for with a window blind. A fire-retardant blind provides peace of mind, knowing that you have a product in place that will protect your loved ones. It is a high quality and safe alternative in case somebody leaves a candle on the windowsill, or you install a blind close to your hob in the kitchen. This material will only smolder if presented with a flame, and once the source of heat has been removed, it is designed to self-extinguish.

This can be added to your fabric by selecting this add-on at the checkout.

If you are unsure about whether the type of blind you are interested in is fire retardant, please speak to our customer service team.

Fire Retardant
Our Range of Made to Measure XL Wide Width Roller Blinds are a range of premium high-end oversized blinds designed to meet the needs of larger windows. Available in a huge selection of Dimout, Blackout and Screen Fabric perfect to give you the desired amount of shading required XL Wide Width Roller Blinds can be made to a maximum width of 4700mm (4.7m) with a drop of up to 5750mm (5.75m).
Premium XL Roller Blind Sizing
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XL Mains Electric Roller Blind Sizing
mm 650 950 1250 1550 1850 2150 2450 2750 3050 3350 3650 3950 4250 4550 4700
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Our plain fabric blinds and curtains provide you with the incredible diversity that comes with a single colour. Easy to match to a room and available in a huge choice, these fabrics are a fantastic way to bring some life and colour to your windows. Be sure to order your free fabric samples to get a feel for the fabric in person and to see all the great features these fabrics have to offer.

The Fabric Fronted Blackout Blind collection provides you with the light-blocking properties expected from a blackout blind, but with the vibrancy of the colours and patterns you’d expect to find on fabric blinds. The fabric is backed with an additional light blocking material making it impossible for exterior light to penetrate the fabric, casting your room into total darkness. 

Fabric Fronted Blackout Fabric With A Thicker Light Blocking Fabric On The Back

Thermal blinds help to keep the room nice and cosy, which can be a struggle in winter. They may even help to keep those energy bills down too...

Total Blackout Cassette Systems

Chain Operated Total Blackout Cassette Systems

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Highstreet Price Comparison

Our highstreet price comparison calculator works on an average price based on similar made-to-measure blinds sold by highstreet retailers. We compare their blinds to ours using the same measurements, same type of fabric and same mechanism, doing our best to find a like-for-like system. To find out more, click here.