Description
Product Details
- Size: 50mm x 50mm x 2400mm
- Weight: 5.33kg per joist
- Application: Composite subframe support for decking installations.
- Can be cut easily!
- Delivery - Free over £250
The Solid Foundation Your Deck Depends On
- Built to support your entire deck – provides a strong, stable subframe that keeps boards level, secure, and long-lasting
- Perfect match for 5m Composite Decking systems – designed to work seamlessly with composite decking boards and fixings
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Consistent structure – uniform 50mm x 50mm profile makes planning and installation straightforward.
Engineered for Outdoor Performance
- Solid plastic composite construction – won’t rot, warp, or degrade like traditional timber joists
- Moisture-resistant – ideal for ground contact, damp areas, and all-weather conditions
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Long-term durability – built to handle load, pressure, and temperature changes without weakening
Low Maintenance. High Reliability.
- No treatment required – no sealing, staining, or ongoing upkeep needed
- Resistant to insects and decay – unlike timber, it won’t attract pests or break down over time
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Stable and dependable – maintains its shape for a longer-lasting decking structure.
Designed for Efficient Installation
- Easy to cut and work with – compatible with standard tools for quick on-site adjustments
- Works with standard joist layouts – ideal for typical 400mm centre installations
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Pairs with full AmbiDeck system – integrates with clips, trims, and boards for a complete build.
Why It Matters
- A strong deck starts underneath – the better your subframe, the longer your decking will last
- Upgrade from timber joists – avoid the common issues of rot, movement, and maintenance.
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To request samples, please visit this page and fill out your details.
This company deserves more than 5 stars
This company deserves more than 5 stars! Brilliant help & communication by the staff there. My purchase was delivered the next day. can't fault them at all. Thank you
Date of experience: 21 February 2024
Made up with the cladding and…
Made up with the cladding and corrugated roof sheets
Delivered early which was a bonus
All the sheets were not damaged
And l must say cheapest around
Spot on
Will defo use again
Date of experience: 17 October 2023
Cladding
Very pleased with my grey composite cladding. Staff helpful, free samples received, confirming a good product at a fair price, leading to my purchase.
Date of experience: 11 June 2023
Help with my new garage roof!
Trade Warehouse could not have been more helpful. They very patiently guided a roofing newbie through all of the stuff I would need to do the job and provided helpful tips along the way. It's rare to find a company offering such a fantastic level of customer service as standard. I would highly recommend them and will certainly use them again.
Date of experience: 23 August 2023
Garden Storage
My contractor (Charlie Keep) recommended you to me so I could order the materials online for delivery direct to my home. These were for a project to construct a Garden Storage Area. The materials were perfect and the whole process was simple and slick with materials delivered on time and very well packaged. Charlie has since completed the project & I am very happy with the outcome.
Date of experience: 20 August 2023
Right product, right price, right delivery.
Right product, right price, right delivery. Sure, it was only one length of cast iron guttering but they took the order seriously, packed it well and kept me updated on delivery. And when I opened the very good packaging I found it was exactly what I had wanted. How can you do better!!
Date of experience: 31 January 2023
Fast
Fast , efficient service
Date of experience: 12 September 2023
It was exactly what I wanted
It was exactly what I wanted. Arrived in good order
Perfect
Date of experience: 16 September 2023
Straight forward and helpful with…
Straight forward and helpful with making the order. Delivery guy was friendly and was helpful in bringing the sheets into the back yard (was only a few). Really happy and would highly recommend!!!
Date of experience: 27 August 2023
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