Tectonic® 25mm Aluminium Decking Subframe Top Rail/Vertical Rail (3.6m length)
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Tectonic® 25mm Aluminium Decking Subframe Top Rail/Vertical Rail (3.6m length)

In Stock, 1-5 day delivery
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Aluminium Joist System
The longest lasting decking joist on the market!
Tried and Tested
Full designed system and components available
Multi-Surface Subframe
Can support paving and composite decking on one system
DIY Friendly
Easy to Install

Product Details



FREE delivery on all orders over £1000, orders under £1000 will be subject to a £64.95 carriage charge - (3-5 day lead)*. We hold all of our material in stock, so once your order is placed, we are able to arrange the next available delivery slot in your area. If you would prefer to delay your delivery for a more suitable time, please ask a member of the sales team on 0208 159 2999 or by emailing sales@ovaeda.com. Large deliveries are to the property kerbside, a person must be present to help unload goods if required and sign for receipt. For full terms of our deliveries please read our terms and conditions.


When should I use this Top Rail?
This joist should be used when installing composite decking with a build-up height of less than 300mm. This is used as the top lattice rail to create a super solid structure.
Can I use this with porcelain paving and composite decking?
The only difference between the 25mm rail for composite decking and porcelain paving, is the porcelain paving has rubber strips inserted to create a perfect paving finish
Why choose aluminium joist over timber?
Simply, because they last the longest! If you are installing a long lasting composite decking, then you don’t want the suframe to fail and need replacing in 5-10 years when the composite still has many years of life left!
Can I install it my self?
Yes, our systems are DIY friendly. However, we also work with a team of approved installers.

Downloads and Usefull Links

Installation Guide
Tectonic® T2525 Decking and Paving Subframe with Vertical Downturn
What is a Paving Subframe?
What Is A Decking Subframe?
How Much Does A Decking Subframe Cost?

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