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AliDeck 20mm Lite Board

AliDeck 20mm Lite Board


Low-profile, cost-effective entry-level decking designed for the retrofit and replacement market.

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+44 (0)1622 235 672 www.alideck.co.uk


Designed specifically for the retrofit and replacement market but is also suitable for any balcony (steel or concrete inset), terrace or walkway project that has a decking requirement.


A cost-effective, low-profile, entry-level decking. It has all the same product features as our Senior and Junior Decking Boards, including quick installation times, a fully aluminium construction, fire resistance and a 30 year warranty, but uses a clip fixing system rather than the top-down fixing method of our other boards.

These aluminium metal decking boards are treated with a special powder-coating process which colours the boards in a choice of our full range of AliDeck colours. This finish along with the aluminium construction gives the boards fire ratings of A2-s1, d0 and A2fl-s1 which means they are non-combustible and provide no contribution to fire.

Board spacing:

3 – 8 mm (5 mm recommended).

Features and benefits:

  • Class A2-s1, d0 fire rated, therefore conforms to the UK fire regulations for materials used on the exterior of high-rise buildings.
  • Full drainage: The aluminium decking is installed with gaps between the board (spacing recommendation above) to allow the water to drain through, away from the decking, avoiding water laying on the surface.
  • Integrated Balcony Drainage System available, consisting of between-board drainage channels and perimeter gutters, providing piped drainage.
  • Constructed from 67% recycled aluminium for strength, longevity, sustainability and minimal maintenance.
  • Quick to install.
  • Easy fix to existing steelwork without unnecessary penetration.
  • 100% recyclable.
  • Can cover any size balcony: boards are 120 x 20 mm, however they can be cut to size along the width and fitted together to cover balconies of any size.
  • Available in 4m or 6m stock lengths. Custom extrusion available above weight limit, consult manufacturer for details.
  • Minimal maintenance required: Aluminium decking does not require special treatments to keep it clean and maintained.
  • Will not warp over time: Unlike timber, aluminium does not expand or contract in the heat and wet weather and will not warp, make it last much longer than timber decking, without the need for regular treatments.
  • No need to drill holes: Can be installed onto existing sub frame sections without having to drill additional holes.
  • Available in 13 standard colours.
  • 30 year warranty.
  • 60 year life expectancy.

General information


Choice of 13 Standard Colours.



Powder coated




30 years


6000 x 120 x 20 mm

4000 x 120 x 20 mm


Custom extrusion available above weight limit.


Ss_30_20_30_25 Decking systemsPrimary


Q55/110 Deck

Specification data - Decking systems Enhanced data

Deck boards




6063 T6 structural grade.


Clip fixing system.



Insert requirement, available in the full range of AliDeck colours.

Environmental information

Country of product manufacture

United Kingdom



Recycled content

67 %

Digital objects

Platform Compatible Version Certified to




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