Alideck Low Joist

Alideck Low Joist

The Alideck Low Joist is a strong aluminium support joist which has been designed to be paired with our aluminium balcony decking boards. The aluminium frames ensure a strong construction that is naturally rust resistant and fire resistant to A2-s1, d0. The aluminium is finished with QUALICOAT powder coating in a choice of textured sand and textured silver grey.

Opting for the Alideck Low Joist to support your decking will enable you to increase your span by over 200% compared to composite or timber decking joists.

Contact us today to find out if you qualify for a free site survey or to request an estimate
  • Size - 50mm x 80mm
  • Fire resistant to A2-s1, d0 – It is non-combustible and meets the governments regulations for materials used on the exterior of high-rise buildings
  • Rust Resistant – The fully aluminium construction gives this low joist a natural rust resistance, ensuring a strong, long lasting decking support
  • 30 Year Warranty – Supplied with an impressive 30-year warranty for complete peace of mind
  • 60 Year Life Expectancy – So you know that the joists will last as long as, or longer than required, saving money on replacements
  • Recyclable – Aluminium can be recycled time and time again ensuring that if disposed of correctly, your low joists will never end up in landfill
  • Supports Aluminium Decking – Available for use with our fire-resistant balcony decking boards
  • Low Maintenance – Unlike with timber supports, the Alideck Low Joists do not need regular stains or treatments, saving time and expense
  • Stable in All Weather Conditions – Unlike timber it will not warp, expand or bend

Alideck aluminium low joist


Click here to view the Alideck Low Joist Specification Sheet >


Domestic Component Disposition: Low Joist Spans

SINGLE JOIST SPANS – Between Supports (Centre Line of Joists in mm) 600   1000  1200  
 SINGLE JOIST SPANS – STANDARD Specification 1/350 1640  1385  1304 
 SINGLE JOIST SPANS – FIRM Specification 1/480 1480 1247  1174 
Domestic Load = 1.5kN SQM

Commercial Component Disposition: Low Joist Spans

SINGLE JOIST SPANS – Between Supports (Centre Line of Joists in mm) 600   1000  1200 
SINGLE JOISE SPANS – STANDARD Specification 1/350 1100  928 873
SINGLE JOISE SPANS – FIRM Specification 1/480 990  835  785 
Commercial Load = 5.0kN SQM

Colour options

The Alideck Low Joist is protected with a 5-stage powder coating process called QUALICOAT which is available in two colours; Textured Sand and Textured Silver Grey.

Ali-Deck Supa Joist Colour Options - Able Canopies Ltd.

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