Dorema Onyx Tall Annex De Luxe XL (250 x 150 cm) – Elegant, Spacious & All-Weather Extension
£709.00
The Dorema Onyx Tall Annex De Luxe XL is a premium-quality awning extension designed to expand your Onyx awning with style and practicality. Crafted from durable, all-weather TenCate coated polyester, it provides a spacious 250 × 150cm interior — ideal for extra sleeping quarters, storage, or a private retreat. Built to match the Onyx Awning’s luxury design, this annex delivers strength, comfort, and long-lasting performance in all seasons.
Available on backorder
- Size Guide
UK Caravan Awning Size Guide – Find the Perfect Fit!
FULL CARAVAN AWNINGS – It is all about the A-measurement…
The distance from the ground, up around the full length of your awning rail to the ground on the other side of your caravan.
Both Caravan and Caravan Awning Manufacturers use an industry standard, universal size chart 4- 22. to determine what awning size will fit your caravan.Caravan Designers and Awning Manufacturers do not always agree on the A-Measurement, which is why you may find contradicting information available online.
The Dreaded Number and How To Measure:
1. Park your caravan on level ground.
2. Thread a string (ideally 10m+).
3. Realise you don’t have a string that long and decide to…LET US FIND YOUR PERFECT AWNING
By sharing a few details about your caravan, you can skip on tedious measuring. What’s more… apart from taking a professional fitment advice, you can also take full advantage of our 100% Fitment Guarantee and rest assured your new awning will fit first time.
PORCH AWNINGS - Everything you need to know
Most Porch Awnings sizes are generally much more flexible when it comes to positioning. Two things to consider here…
1. Straight Awning Rail Measurement – The length of the straight part of your caravan roof. This would determine the maximum width porch awning you can fit to your leisure vehicle.
2. Where Does Your Porch Connect to your caravan – Before opting out for the biggest possible porch, it is important to consider the position of your windows, storage compartment access and fridge vents.
The Biggest size is not always the best choice when it comes to porch awnings…
The last thing you want is you brand new porch awning side wall sitting across a window and letting draught in obstructing vents or blocking a storage locker with essential gearOur Customer Service team can guide you in the right direction, so your brand new porch awning, fits like a glove first time.
MOTORHOME AWNINGS & PRIVACY ROOMS
Unlike touring caravans, motorhome awnings come in various widths, lengths and sizes. Taking the correct measurement here is crucial for a secure and weather resistant fit to your leisure vehicle..
Measure Your Awning Length
Within the front part of your motorhome awning you will find a C-channel very similar in design to the awning rail on a caravan. This measurement will give you the connection length of the awning you need.
Measure Your Fitment Height
The Distance from the bottom of your wind-out canopy to the ground (or visa versa). This would give you the awning height at the connection point. Most motorhome awnings and drive away models have height options.
- Delivery & Return
Same working day dispatch for all orders placed before 1pm.
NEXT WORKING DAY DELIVERY OPTIONS AVAILABLE.
PLEASE NOTE: We do not always have all available sizes and colours of awnings from every supplier available on the shelf.
Depending on stock availability, we may dispatch your order straight from our suppliers warehouse. In such circumstances, a delay of up to 24hours may occur.Fitment Question? Product Enquiry? Delivery Issues?
Put our Highly Rated Customer Service Agents & 100% Customer Satisfaction Guarantee to the test.
Fill in the Quick Contact Form Below or Use our Live Chat Icon on the bottom of the page.
- Ask a Question
Dorema Onyx Tall Annex De Luxe XL – Elegant, Spacious & All-Weather Extension
250 × 150cm Layout • Double-Zip System • Fly Screen Ventilation • European Build Quality
Product Description
Enhance your caravan experience with the Dorema Onyx Tall Annex De Luxe XL, a spacious and elegant addition built to withstand the elements. Its double-zip system allows you to easily reattach the side panel, sealing the annex for extra storage or privacy.
The rear doorway and roll-down window with fly screen offer superb airflow and ventilation while keeping insects out — ensuring comfort in every weather condition. Made with Dorema’s trusted European craftsmanship, this annex combines premium materials with clever functionality, perfectly complementing your Dorema Onyx Awning.
Whether used for sleeping, relaxing, or storage, the Onyx Annex De Luxe XL brings flexibility and sophistication to every outdoor setup.
What’s Included
- Dorema Onyx Tall Annex De Luxe XL
- Steel Frame Kit
- Fly Screen Window
- Installation & Setup Guide
Why Choose This Model?
- 🛏️ Adds Valuable Extra Space – Perfect for sleeping or extra gear
- 🌦️ Weather-Resistant Construction – Built from robust, coated polyester
- 🧰 Quick & Easy Setup – Smooth zip system and flexible design
- 🎨 Matches the Dorema Onyx Awning – Consistent look and quality finish
- 💪 Built to Last – European craftsmanship with 2-year warranty
Expand your outdoor comfort with the Dorema Onyx Tall Annex De Luxe XL – a stylish, weatherproof, and spacious extension that transforms your Onyx awning into a true home-from-home.
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