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Aluminium Decking Substructure Joist

ALS aluminium subframe system has a simple, sturdy and high-strength design. Our aluminium decking subframe, along with our pedestal system, is quick to install. High quality and can be used... [ Read more ]
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ALS aluminium subframe system has a simple, sturdy and high-strength design. Our aluminium decking subframe, along with our pedestal system, is quick to install. High quality and can be used for both residential and commercial projects.
ALS fire-resistant sub-frame system that conforms to EN13501-1 B ratings. This aluminium system has been developed with fire safety in mind following the recent change in legislations on the use of combustible materials in high-rise buildings. 

Our fire-resistant cradles and pedestals conform to EN13501-1 B fire testing making them suitable for commercial projects such as roof terraces, balconies and podiums. Made up of 30% glass filled nylon, they are also lightweight in construction.

The structure of the joists means they are not only durable but can also work on a much longer span compared to similar systems, reducing the quantity of pedestals and cradles needed and in turn reducing the cost and labour time. Supports can be placed every 800mm on a 50mm joist and still offer maximum strength.

Key benefits of our aluminium decking frame include:

  • Fire resistant and non- fire resistant options available.
  • Fire resistant to EN13501-1 B.
  • High strength.
  • Long spans – up to 800mm.
  • High impact resistance.
  • High flexural strength – 199 mpa.
  • Non-combustible.
  • Rapid installation.
  • Powder coated to RAL 9005 (black)
  • Does not warp, rot or twist.
  • Complete wood free solution.
  • Will support any type of decking boards and paving, whether that’s composite products, hardwood, softwood, PVC, or porcelain. 
Joist weights - 3600 x 50 x 25mm 5.9kg, 3600 x 50 x 50mm 5.15kg

Can be used with our London Hollow Decking or any other lightweight composite decking.


Contractors must ensure that products are fit for purpose - if in doubt, please get in touch

Please note delivery prices are as accurate as possible at time of ordering, however this cost may be subject to change at any time due to weight/volume, fuel surcharges, currency changes and location.
Please let us know about any access restrictions at the delivery/check-out stage as failure to provide information may delay your order or incur extra delivery costs.

The administration team will contact you should any issue arise concerning delivery charges. Contact Arbour Landscape Solutions for more information. [email protected]
All materials are subject to availability at the time of order. The administration team will be in touch to arrange/advise of your delivery date.

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