Dorema Magnum Air Force AddEx All Season
£1,019.00
Dorema Magnum Air Force AddEx All Season inflatable awning extension expands your Magnum Air Force setup by 270cm per side, delivering modular, all-season living space with premium TenCate DormaTex fabric.
- Size Guide
UK Caravan Awning Size Guide – Find the Perfect Fit for Your Full or Porch Awning
Looking for the right size awning for your caravan? Whether you’re after a full awning for extended stays or a porch awning for weekend getaways, our UK Caravan Awning Size Guide makes it easy to find the perfect fit. With over 40 years of combined experience and access to a comprehensive UK caravan database, we take the guesswork out of awning sizing.
In this guide, you’ll learn how to measure your caravan for both full and porch awnings, understand A-measurements, and use our easy-to-read awning size chart. Plus, with our Fitment Guarantee and Free UK Delivery, you can shop with confidence.
📏 Measuring for a Full Caravan Awning
Your caravan’s A-measurement is the key to finding the correct size full awning. This ensures a snug, weatherproof fit that maximises your comfort and space.
🛠️ How To Measure
(Step-by-Step – The Hard Version)- Park your caravan on level ground.
- Thread a string (ideally 10m+) through the entire awning rail from one end to the other.
- Keep your fingers crossed, you measured correctly.
📏 Porch Awnings are more flexible.
However a bit of careful consideration will pay off with a perfect fitting Porch Caravan Awning and years of Hassle Free Camping!
🛠️ How To Measure and What to Look Out For
- Height from ground to awning rail (H)
Typically between 235–250 cm for most UK caravans. - Length of the straight section of the caravan awning rail (L)
- Position of Windows & Doors to ensure good seal and weatherproof camping.
😌 The Easy Way…
Sit back, relax, and let us find your perfect awning!
With access to a huge UK caravan database and over 40 years of combined experience in the trade, we can take the guesswork out of sizing.
All we need is your caravan make, model, and year of manufacture—and we’ll do the rest!
Standard UK Awning Size Chart
Size A-Measurement (cm) Size A-Measurement (cm) 4 725 – 750 5 750 – 775 6 775 – 800 7 800 – 825 8 825 – 850 9 850 – 875 10 875 – 900 11 900 – 925 12 925 – 950 13 950 – 975 14 975 – 1000 15 1000 – 1025 16 1025 – 1050 17 1050 – 1075 18 1075 – 1100 19 1100 – 1125 20 1125 – 1150 21 1150 – 1175 22 1175 – 1200 - 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
- Compatible with Magnum Air Force 260 & 390 – Designed for seamless integration
- 270 cm Modular Extension – Adds significant extra living space
- TenCate DormaTex All Season Fabric – Durable material built for year-round use
- Easy Air Frame Technology – Fast inflatable setup with excellent stability
- Single-Valve Inflation System – Quick and simple air inflation process
- Left or Right Side Installation – Flexible configuration to suit your pitch
- Free-Standing Design – Provides adaptable campsite layout options
- Expandable Modular System – Combine multiple AddEx units for larger living space
🧭 Dorema Magnum Air Force AddEx All Season ➕❄️☀️ | Expandable Awning Extension Built for Year-Round Use
270cm wide zip-on extension, fits both 260 and 390 base models, TenCate All Season fabric, free-standing flexibility, extends space up to 930cm!
The Dorema Magnum Air Force All Season AddEx is the perfect way to expand your living space while maintaining durability and comfort year-round. Whether you start with the 260cm or 390cm base model, this 270cm-wide AddEx module zips effortlessly to the left, right, or both sides to suit your needs. Built with premium TenCate All Season coated polyester and backed by Dorema’s expert European craftsmanship, it offers outstanding performance in all weather conditions. Combined with the Easy Air Frame (EAF) and one-valve inflation, setup is a breeze. Use it as a guest room, gear space, dining area, or pet enclosure — the AddEx transforms your awning into a true modular extension system built to last.
🧳 What’s Included
- 1 x Dorema Magnum Air Force All Season AddEx Extension
- Easy Air Frame system with one-valve inflation
- Zipped connection for secure attachment
- Internal privacy blinds
- Carry bag and accessories
🔍 Why Choose This Model?
- Seamless expansion for Dorema Magnum base awnings
- Made with premium TenCate All Season fabric – built for year-round durability
- Perfect for long-term seasonal siting or flexible trips
- Massive expansion potential: up to 930cm width
- Effortless setup with EAF single-valve system
- Free-standing and modular for versatile layouts
- Backed by European manufacturing quality
Upgrade your outdoor living with the Dorema Magnum Air Force AddEx — engineered for true all-season performance and unbeatable modular flexibility.
| Specification | Details |
|---|---|
| Product Type | Inflatable Awning Extension Module |
| Model | Dorema Magnum Air Force AddEx All Season |
| Compatibility | Dorema Magnum Air Force 260 & 390 |
| Extension Width | 270 cm |
| Fabric | TenCate DormaTex All Season Polyester |
| Frame System | Easy Air Frame (EAF) Inflatable |
| Inflation | One-Valve System |
| Installation | Zip-On Modular Extension |
| Position | Left or Right Side |
| Maximum Expansion | Up to 930 cm with multiple modules |
Related Products
The StarCamp Voyager Footprint (300 × 420 cm) is a durable protective groundsheet, designed to shield your awning or tent floor from wear, moisture, and dirt—extending its lifespan and improving comfort.
Only 2 left in stock
The StarCamp Discovery Air Awning PE Floor Groundsheet is a durable, custom-fit flooring solution, designed to provide insulation, cleanliness, and comfort for your driveaway awning setup.
Only 2 left in stock
The Starcamp Discovery Air Awning Roof Lining is a genuine accessory designed to reduce condensation and improve insulation inside your Discovery Air awning. Easy to clip in after pitching, it enhances comfort, temperature control, and interior appearance for a fresher camping experience.
In stock
The Westfield Table 120 x 80 Carry Bag is a durable, padded storage solution designed to protect and transport Westfield tables measuring 120 x 80 cm, offering weather resistance, reinforced handles, and compact storage convenience.
In stock
The Westfield Premium ProStep is a heavy-duty, double aluminium step designed for caravans and motorhomes. Engineered with premium all-weather materials and a 200kg load capacity, this step delivers unbeatable strength, safety, and long-term reliability. Its folding slide-together design ensures compact storage while high-visibility edges and anti-slip treads provide added safety.
In stock
The Westfield Canopy Shady Pro is a premium lightweight sun canopy designed for quick setup and reliable outdoor protection. Built with HydroTech® Ripstop fabric and a lightweight aluminium frame, it provides instant shade, UV protection, and weather resistance, making it perfect for touring caravanners and Westfield awning users.
The Westfield Premium ProStep Handrail is a robust and ergonomic safety upgrade designed exclusively for the Westfield Premium ProStep. Built from premium-grade, all-weather aluminium, it provides a stable and reliable handhold for caravans, motorhomes, and outdoor setups. The handrail can be mounted on either side, ensuring perfect compatibility with any door configuration.
In stock
The Wheeled Bag for Traditional & Inflatable Awnings is a heavy-duty storage and transport solution, designed to make moving and storing your awning effortless, organised, and strain-free.
In stock
The CampTech Tall Seasonal Annexe with Blinds is a full-height extension designed for CampTech DL seasonal awnings, including Savanna DL, Atlantis DL, Buckingham DL, and Mayfair DL models. Constructed from durable Climatech SR18 all-season fabric, it provides generous extra space for sleeping, storage, cooking, or relaxing during long-term caravan stays.
Out of stock
The Westfield Veranda Pole for Awnings is a simple yet highly effective accessory that transforms your awning into a bright, airy veranda-style space, improving airflow while maintaining shade and shelter.
Out of stock
Camptech Techline Secure Storm Straps provide reliable tie-down support for inflatable awnings, ensuring stability in windy or unsettled weather. Compatible with Camptech Starline, Viscount, and most other inflatable awnings with attachment points.
Available on backorder
Starcamp Discovery Air canopy support tube for Air awning designed to prevent rainwater pooling and improve front canopy stability, supplied as a pair for perfect fit and reliable all-weather performance.
Only 2 left in stock
