Choosing the right Dakstra BlocOut roof blind starts with one important detail: identifying your roof window correctly. Before ordering a made-to-measure blackout blind, check the window manufacturer, size code, compatibility, fabric colour, light-control requirements, and installation arrangements. Getting these details right can help you avoid ordering the wrong product and make fitting your new roof blind considerably easier.
For homeowners across Dublin, North Dublin, South Dublin and the Republic of Ireland, Grays Window Blinds offers an online route to purchasing roof blinds without the need to arrange an in-home measuring appointment. You can research your options, identify the correct roof window information, place your order online and prepare to fit your blind yourself using the fitting instructions available on the Grays Window Blinds website – www.grayswindowblinds.ie
Whether you are finishing an attic bedroom, improving a loft conversion, furnishing a rental property or creating a more comfortable home office, this guide explains what to check before buying Dakstra BlocOut Roof Blinds.
Why Choose Dakstra BlocOut Roof Blinds?

Roof windows bring natural daylight into rooms that might otherwise feel dark or enclosed. However, the same overhead glazing can introduce strong sunlight, unwanted early-morning brightness and glare at inconvenient times.
A properly selected blackout roof blind gives you greater control over incoming daylight. It can be particularly useful in bedrooms, children’s rooms, attic guest accommodation, media rooms and spaces where you need to reduce direct sunlight.
Grays Window Blinds lists Dakstra BlocOut Roof Fabrics in its online range, with 10 colourways advertised on its website. The company also promotes online discounts and nationwide delivery, letting customers explore roof blind options from home. Check the live product page for current prices, availability and offer terms before ordering.
For customers searching online for Dakstra roof blinds Ireland, Bloc Roof Blinds Dublin or roof window blinds Ireland, the essential consideration is not simply choosing an attractive fabric. The blind must also be suitable for the particular roof window.
A well-matched roof blind should provide the light control you need, complement the room’s interior and operate appropriately within the window frame.
1. Check That You Have a Dakstra Roof Window

Before selecting a blind, establish which manufacturer made your existing roof window.
Dakstra is one of several brands found in Irish homes and attic conversions. Other common roof window names include Dakea, VELUX, FAKRO, Keylite, RoofLITE and Roto. Although some brands share manufacturing relationships or similar size codes, you should never assume that a blind intended for one brand will automatically fit another.
Start by opening the roof window, provided it is safe to do so, and examining the identification plate on the moving window sash. The plate normally provides information that helps identify the window type and size. Dakstra identification information can be used to establish the appropriate replacement window dimensions and corresponding size code.
The precise location and appearance of the plate can vary, so consult the window manufacturer’s guidance if you cannot locate it.
If the window is difficult to reach, do not climb onto furniture or lean dangerously across a stairwell or loft opening to inspect it. Use a safe access method or ask someone suitably equipped to assist.
What to record before shopping:
- The manufacturer shown on the identification plate.
- The complete window type or model reference, where supplied.
- The size code, including every letter and number.
- Any additional product information that could help confirm compatibility.
Write the information down exactly as it appears. A small difference in a code can matter when selecting a made-to-measure roof blind.
If you are unsure whether your window is Dakstra or another brand, resolve that question before placing an order. It is much easier to check the identification details in advance than to discover a compatibility problem after delivery.
2. Find and Verify the Roof Window Size Code

The size code is one of the most important details to check when buying Dakstra BlocOut Roof Blinds.
Dakstra roof windows commonly use codes such as C2A, C4A, F6A, M4A, M6A and M8A, although the available range depends on the particular window generation and model. These references identify window sizes and should not be confused with fabric colour names or blind product codes.
The manufacturer’s replacement-window information provides examples of Dakstra size references and corresponding external frame dimensions. For example, M4A is associated with a nominal frame size of 78 × 98 cm, while M6A corresponds to 78 × 118 cm. These are window dimensions, not instructions to order a blind using measurements taken from the outside of the frame.
You can consult the manufacturer’s information here: DAKEA roof window replacement guide.
When shopping on Grays Window Blinds, use the actual selection options and compatibility information provided on the relevant Dakstra BlocOut product page. Do not assume that every code mentioned in a general roof-window guide is necessarily offered for every blind model.
What if the identification plate is missing?

An unreadable or missing plate does not automatically mean you cannot identify your roof window. However, you should avoid guessing.
You may be able to identify the size by carefully measuring the visible glass and comparing the result with a reliable guide for the correct manufacturer and window type. Some roof-window blind suppliers provide measurement charts for this purpose.
It is important to understand that visible glass measurements, external frame measurements and the measurements used by a particular blind system are not interchangeable. A measurement chart must specify which dimensions it uses.
If you cannot confidently establish the correct code, contact Grays Window Blinds before ordering. You can email sales@grayswindowblinds.ie or call 087 258 3835 for assistance with your enquiry.
3. Confirm Compatibility Before You Buy

A frequent mistake when shopping for roof blinds online is assuming that a universal-looking product will fit every roof window.
Roof windows can differ in frame design, dimensions, fixing arrangements and the space available for the blind’s operating components. A suitable blackout blind needs to be compatible with these details.
Grays Window Blinds lists separate BlocOut Roof Fabrics for several manufacturers, including Dakstra, Dakea, FAKRO, Keylite, RoofLITE, Roto and VELUX. The separate product listings make it important to choose the correct manufacturer category rather than selecting a roof window blind solely because its photograph resembles your window.
Before proceeding to checkout, check:
- That you have selected the Dakstra product rather than another manufacturer’s range.
- That your exact window size or code is supported by the product.
- That the product description confirms the appropriate compatibility.
- That the fixing components and installation instructions correspond to the product you are buying.
If you have an older or unusual roof window, seek confirmation before ordering. Similar-looking frames do not necessarily share the same blind dimensions or installation requirements.
This simple verification step is especially important for customers who want to shop window blinds online and complete the entire project themselves. Buying online can be straightforward, but accurate product selection remains your responsibility.
4. Decide Whether You Need Blackout or Dimout Performance

The next question is how much light you want to control.
A BlocOut roof blind is intended for blackout-style light control, making it an appealing option where reducing incoming daylight is a priority. It can be particularly useful in attic bedrooms where the roof window faces the morning sun, or in loft conversions used by children and shift workers.
However, the words blackout blind should not be interpreted as a guarantee of a completely dark room under every installation condition. Small amounts of light may still enter around the edges, depending on the blind’s construction, fit and the surrounding window.
Before ordering, consider the room’s main purpose.
For bedrooms: Prioritise light control, especially if early sunlight affects your sleep. Choose a fabric colour that suits the room without compromising your requirements for the product itself.
For children’s rooms: A blackout roof blind can help reduce daylight during naps and bedtime. Keep cords, controls and other operating components appropriately managed and follow all product safety instructions.
For home offices: Think about screen glare and the position of your desk. Blackout performance may be useful during presentations or when sunlight falls directly across a monitor, although you may prefer to keep the blind open during much of the day.
For guest rooms: A blackout blind can make an attic bedroom more adaptable for guests with different sleeping routines.
For multipurpose lofts: Consider whether you need strong light control throughout the day or mainly at night. The best choice depends on how the room is actually used.
The objective is to match the blind to your daily routine rather than selecting a product on appearance alone.
5. Choose a Fabric Colour That Works With Your Interior
Once compatibility and light-control requirements are established, you can focus on appearance.
Grays Window Blinds advertises 10 colourways for its BlocOut Roof range. The live Dakstra product page should be checked for the exact colours available when you place your order.
Colour selection matters because roof windows often occupy a prominent position in sloping ceilings. A blind can become a defining feature of an attic bedroom or blend quietly into a neutral interior.
Light grey, white and soft neutral shades can complement pale ceilings and contemporary décor. Beige and sand tones may suit warmer interiors with natural wood, cream upholstery and textured fabrics. Darker shades can create contrast against white plasterwork and may suit modern bedrooms with richer accent colours.
Before ordering, consider the colour of your ceiling, walls, roof-window frame and furnishings. Think about how the fabric will look both when the blind is fully closed and when it is open.
Where possible, compare the available product photographs with the colours already used in the room. Remember that colours can appear different depending on screen settings, lighting and photographic conditions.
Do not select a fabric based on colour alone. Confirm the product’s intended light-control performance and window compatibility first.
6. Consider Heat, Sunlight and Everyday Comfort
Roof windows receive daylight from above, and their exposure can make a noticeable difference to how a loft room feels.
In summer, direct sunshine can make an attic bedroom or home office uncomfortable, particularly when the room has limited ventilation or substantial roof glazing. A blackout blind can reduce the amount of direct light entering the room, but its overall effect on indoor temperature depends on the glazing, blind construction, installation, solar exposure and ventilation.
It should not be treated as a substitute for appropriate insulation, ventilation or a broader overheating strategy.
If your loft conversion becomes hot during sunny weather, consider the room as a whole. Check whether the roof window opens correctly, whether ventilation is adequate and whether other sources of heat contribute to the problem.
For Irish homes, changing weather conditions also make flexibility valuable. You may want the blind closed during strong sunshine, partly open during the day and fully open when you want maximum daylight.
A correctly selected and installed roof blind helps you manage the light entering through the window according to the room’s needs.
7. Check What Is Included Before Ordering
Before completing your online purchase, read the product information carefully.
Do not assume that all roof blinds use identical fixing components, operating systems or installation methods. The exact items supplied depend on the product you choose.
Confirm that you understand the following:
- The product is intended for your Dakstra roof window and selected size.
- The chosen fabric and colour are correct.
- The product description explains what is included.
- The installation instructions are available and appropriate for the blind.
- You understand the delivery arrangements and any relevant order conditions.
If anything important is unclear, ask before paying. A quick check at this stage can prevent unnecessary delays.
Customers looking for made-to-measure blinds Dublin, roof blinds Dublin North or roof blinds Dublin South should apply the same process, whether the property is a city apartment, a suburban house or a rural renovation project.
The product must be suitable for the window regardless of where the home is located.
8. Prepare to Measure and Fit the Blind Yourself
One of the advantages of buying online is that you can manage the project around your own schedule.
Grays Window Blinds encourages customers to educate themselves using the information and comprehensive fitting instructions available on its website. For suitable products, this makes it possible to research the options, order online and undertake the measuring and fitting work yourself.
However, roof blinds require careful preparation. Work at height or around a sloping ceiling can present additional challenges, and the correct method depends on the window’s position and accessibility.
Before starting, read the relevant instructions from beginning to end. Check the tools required, the supplied fixing components and any safety precautions. Make sure you have safe access to the window and enough room to work without leaning precariously across the opening.
Do not improvise fixing positions or alter components unless the manufacturer’s instructions specifically permit it.
A practical pre-installation checklist
First, verify the product. Compare the delivered blind and any product label with your order confirmation. Resolve any discrepancy before beginning installation.
Second, inspect the components. Check that the parts described in the instructions are present and undamaged.
Third, prepare the work area. Remove objects that could obstruct access, protect nearby furnishings where appropriate and use suitable equipment to reach the window safely.
Fourth, follow the correct sequence. Install the components in the order specified in the product instructions. Avoid tightening fixings incorrectly or forcing a part that does not align.
Fifth, test the operation. Once installed, operate the blind according to the instructions. Check that it travels as intended and that the components remain secure.
If you are uncomfortable working at height, cannot reach the window safely or find that the supplied components do not match the instructions, stop and seek suitable assistance.
Doing the work yourself should mean following the right procedure confidently, not taking unnecessary risks.
9. Avoid The Most Common Dakstra Roof Blind Ordering Mistakes
Many avoidable ordering problems arise because customers rush through the product selection process.
The following checks can help you avoid the most common issues.
Mistake one: guessing the window size. Never choose a blind simply because it looks close to the dimensions of your existing roof window. Verify the identification code or use a suitable, manufacturer-specific measurement method.
Mistake two: choosing the wrong manufacturer. Dakstra, Dakea, VELUX, FAKRO and other brands should not be treated as automatically interchangeable. Select the correct product category and verify compatibility.
Mistake three: confusing frame dimensions with glass dimensions. These measurements serve different purposes. Use only the measurement method specified by the relevant product or sizing guide.
Mistake four: overlooking fabric requirements. Check that the selected product offers the light-control performance you need and that the chosen colour is available.
Mistake five: leaving installation research until delivery. Read the fitting information before ordering so that you know what the installation involves and whether you can complete it safely.
Mistake six: assuming blackout means absolute darkness. Light can enter around the edges of a blind. Consider the product’s construction and the fit rather than relying on the fabric description alone.
Mistake seven: ignoring the order details. Verify the selected product, size, colour, price and delivery information before submitting your order.
These checks are relevant to anyone buying roof blinds online in Dublin or elsewhere in Ireland. A few minutes spent verifying the details can make the purchase and installation process more straightforward.
10. Why Buy Dakstra BlocOut Roof Blinds Online From Grays Window Blinds?
Grays Window Blinds is an Irish business established in 1991, serving customers looking for made-to-measure window blinds and roof blinds.
The company’s online range includes products for several roof-window brands, alongside roller blinds, roller cassette blinds, Roller Dual Shade, Roller Perfect Fit, Roman blinds, vertical blinds, Venetian blinds and other window-covering options.
For customers who prefer to manage their own projects, buying online offers the opportunity to review product details, compare colour choices and organise the installation at a convenient time.
Grays Window Blinds advertises online discounts on its roof blind ranges and nationwide delivery. Offers vary by product, so check the live Dakstra BlocOut listing for the current price and discount before ordering.
You can begin at the official website:
Shop Dakstra BlocOut Roof Blinds and other roof blind ranges at Grays Window Blinds
Before placing your order, make sure that you have identified the correct window, checked the relevant size code, confirmed compatibility and chosen the fabric that suits your room.
If you need help clarifying a product detail, contact the sales team at sales@grayswindowblinds.ie or 087 258 3835.
Buying Online: A Simple Process
- Identify your Dakstra roof window and record its size code.
- Visit Grays Window Blinds and select the Dakstra BlocOut Roof range.
- Verify that the required window size and fabric are available.
- Review the product description, price, delivery information and fitting instructions.
- Complete your order online after checking all the details.
- When the blind arrives, inspect it and follow the correct installation instructions.
This approach allows you to take control of the project from initial research through to installation, provided the window is safely accessible and you are comfortable carrying out the work.
Frequently Asked Questions About Dakstra BlocOut Roof Blinds
How do I find the size of my Dakstra roof window?
Open the window safely and look for the identification plate, usually located on the moving sash. Record the size code exactly as shown. If the plate is missing or unreadable, use a reliable measurement guide appropriate to your window or seek assistance before ordering.
Are Dakstra and Dakea roof blinds interchangeable?
Do not assume they are interchangeable. Although the brands may share some size references, compatibility depends on the particular blind and window. Check the product-specific compatibility information before purchasing.
Are BlocOut roof blinds suitable for attic bedrooms?
They can be an excellent option where reducing incoming daylight is important. Consider the bedroom’s exposure to morning sunlight, the level of darkness you want and the fit of the selected blind.
Can I install a Dakstra BlocOut Roof Blind myself?
You may be able to install a suitable product yourself by following its supplied instructions and using the correct components. Ensure that you can reach the window safely and seek assistance if access or installation conditions present a risk.
Do Grays Window Blinds deliver roof blinds throughout Ireland?
Grays Window Blinds advertises nationwide delivery. Check the current product page and delivery terms for details applicable to your order.
Where can I buy Dakstra BlocOut Roof Blinds in Dublin?
You can browse the roof blind range online at Grays Window Blinds. Check the Dakstra product details, confirm the window code and review the available fabric choices before placing your order.
Final Thoughts: Check First, Order Confidently and Fit Correctly
Buying Dakstra BlocOut Roof Blinds should begin with careful identification rather than guesswork. Confirm the manufacturer, record the correct size code, check compatibility, select the right light-control option and understand the installation requirements before committing to a purchase.
For homeowners across Dublin and the Republic of Ireland, buying made-to-measure roof blinds online can be a practical way to manage the process independently. With accurate information and the appropriate fitting instructions, you can take responsibility for measuring, ordering and installing your blind without arranging an in-home measuring appointment.
Grays Window Blinds aims to make that process accessible through its online product range and fitting information.
Ready to get started? Visit www.grayswindowblinds.ie, explore the Dakstra BlocOut Roof range and check the current colour options and offers before ordering.
Have you installed a roof blind yourself, or are you planning a loft conversion in Dublin or elsewhere in Ireland? Share your experience, questions and practical tips on our social media channels. Like and share this guide with anyone renovating an attic, furnishing a bedroom or looking for roof window blinds.
Your questions and feedback can help other homeowners make more informed decisions when choosing their next window blind.









