Intelroll INT400 Heavy Duty Half-Cassette Manual Retractable Patio Awning (Grey)
Elevate your outdoor living space with the Intelroll INT400 Half-Cassette Garden Patio Awning. Engineered for premium durability and sleek modern aesthetics, this heavy-duty manual retractable awning offers the perfect balance of sun shading, UV protection, and robust weather resistance. Designed by Intelroll Global (UK), the INT400 features a reinforced 40x40mm steel torsion bar and an upgraded structural build, making it significantly sturdier than standard alternative models.
The intelligent half-cassette design provides superior overhead protection for the grey 300gsm fabric when retracted, shielding it from dirt and heavy rain, while the heavy-duty folding arms deliver flawless, smooth operation.
Key Features & Benefits
Upgraded Heavy-Duty Construction: Built with an oversized 70mm aluminium roller, a 40x40mm steel torsion bar, and reinforced support arms with dual inner steel cables for maximum structural integrity.
Premium Weatherproofing: Features a high-performance, PU-coated up to 300g/m² polyester fabric boasting a certified water resistance rating of 17L/m²xh and excellent UV block protection.
Enhanced Wind Resistance: Engineered and safety-tested to withstand multi-directional wind forces up to 70N/m² (TUV & GS Certification approved).
Rust-Proof Longevity: The entire framework and folding arms are crafted from high-grade stainless aluminium, ensuring the unit remains rust-free and elegant for years to come.
Fully Adjustable Shading: Easily alter the pitch/angle of the awning to match seasonal sun positions. The manual smooth-crank system allows you to extend or retract the canopy exactly as much as needed.
Complete Installation Kit: Supplied with heavy-duty wall mounting brackets, expansion anchors, and side covers for a clean, professional finish.
Technical Specifications
Installation & Safety Guidelines
Important Note: This premium folding-arm awning must be anchored securely to a solid concrete or brick wall. We strongly recommend utilizing professional installation services. If you are mounting to a wall structure where stability is uncertain, the use of a high-quality epoxy chemical anchor resin is highly advised.
Maintenance: Exceptionally low maintenance—easily cleaned using a soft cloth or sponge with mild soapy water.
Color Variance: Please note that slight color variations may occur due to individual monitor calibrations and external lighting conditions.
Warranty Information
Peace of mind guaranteed. This product includes a 2-Year Manufacturer’s Warranty covering faulty parts and structural workmanship (domestic use only; canopy fabric excluded).
🚚 Shipping & Delivery Restrictions
Standard delivery charges apply across the UK mainland. However, please note that the UK Highlands, Islands, and Northern Ireland are excluded from standard shipping rates and will incur additional postage fees.
The following postcodes are subject to additional surcharges:
GY, JE, IM, BT, PO30-PO41, TR21-TR25, KW, HS1-HS9, ZE1-ZE3, AB
IV41-IV49, IV51, IV55-IV56, KA27-KA28, PA20-PA80, PH4-PH50
KW1-KW14, PA21-PA38, PH16-PH26, PH30-PH41, PH49-PH50

INT100 Balcony
INT200 Budget Awning
INT300 Strong No Cassette
INT400 Half Cassette Electric
INT500 Awning UK
INT500 AWNING USA
INT650 Free Standing Wheels
INT600 Free Standing
INT700 Caravan
INT800 Pergola Awnings
Fabric Samples
Replacement Fabric
Sun Shade Sail
Brackets
Spreader Brackets
Support Pole Leg
Wind Sun Sensors
Tension Cable
Electric parts
Infrared Heater
Sun Shade Sail
Sun Shade Sail Pole 1m – 6m
Fitting Kit
Tarpaulin
63mm Sun Shade Sail Pole























Christopher George (verified owner) –
The product is great. Warning though- we opted for self fitting and were told by the delivery driver that we would need to space the mounting brackets off the wall or the awning wouldn’t fit. I don’t understand why the supplied brackets don’t position the awning far enough off the wall!! Kudos to the delivery driver for his advice- he saved us a world of pain!!
Jackie E. (verified owner) –
I had been searching for a patio awning for weeks. I definitely made the right choice with interoll. Great customer service and would definitely recommend the fitting service too. Looks great!! I’m now looking forward to using my new awning in the sunny months. Thanks interoll. I would definitely recommend.
Janette Wilkinson (verified owner) –
Very pleased with awning, installed this week, exactly as advertised, excellent quality and very good looking.
Reuben G. / Nantwich, Cheshire –
fine
Sumayya C. / Ledbury, Herefordshire –
fast delivery
Margaret C. / Grange over Sands, Cumbria –
Very professional service. Would recommend to anyone.
Laurence M. / Weston Otmoor, Oxfordshire –
Ordering was simple and delivery was fast. Not installed awnings yet, but we do.
Wasim S. / Lyndhurst, Hampshire –
Customer service is fantastic, they communicated with me the entire way through the process, the installers are a good laugh too, definitely deserved that coffee
Ava-Grace C. / Yeadon, West Yorkshire –
Absolute flawless service well recommended
Marlene C. / Rushden, Northamptonshire –
I was going to install it on my own but it is not a one man job, need at least two people for sure. They are extremely heavy and seemed tricky to install so it was worth paying additional for installation, was sorted quickly
Roscoe / Silloth, Cumbria –
Easy to erect if you have correct tools. Great as a sunshade but also allows use of patio late evening when dew starts to fall
Louisa T. / Sherborne, Dorset –
Nice, good job people!
Laith S. / Basingstoke, Hampshire –
superb product, thank you
Abdullah / Andover, Hampshire –
Seems durable enough, as long as it lasts until next year I’ll be happy
nabil b / Bordon, Hampshire –
very happy to be able to support a local company over those giants
Ami G. / Tisbury, Wiltshire –
Took 2 string men to fit but didn’t take long and now works well
Viktor / Southam, Warwickshire –
Exactly what I wanted
paula / Belper, Derbyshire –
Recommended!
Simrah D. / Soham, Cambridgeshire –
Installed our awning yesterday and it looks really smart.
Saira R. / Beaumaris, Gwynedd –
The product is already assembled and very easy to install with 2 persons.