Delta2020mm aluminium decking board

The Delta range is the ultimate high-performance MyDek® board that simply fixes directly to the balcony frame! Delta20 is the low-profile board option and will comfortably span up to 600mm with very minimal deflection. The simple clip-in cover conceals all fixings, and enables quick and easy installation to a variety of substrates using standard self-drill fixings. Available in the popular range of 6 standard colours and coated using Qualicoat Class 2 powder, Delta20 is your premier choice for versatility in non-combustible decking.



  • Fully certified
  • Non-combustible
  • Lightweight
  • Concealed fixings
  • Slip resistant
  • 30 year warranty
  • 60 year design life


Delta20 boards are available in a range of modern colours etc. They can also be finished with our special Naturo woodgrain pattern.

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Available in a range of standard colours, Delta20 allows direct fixing to steel balcony frames without clips. The simple clip-in cover conceals all fixings, and enables quick and easy fixing to a variety of substrates. Coated to Qualicoat Class 2 standards, Delta20 is your premier choice for versatility in non-combustible decking.

Able to be coupled with the MyDek® Terrace System for inset concrete balconies and roof terraces, Delta20 provides the quick and simple solution for non-combustible decking. With its low slip risk finish and 60 year design life, rest assured that it will provide generations of reliable performance. Of course, it’s rated to A2-s1,d0 making it fully compliant with the amended Part B of the Building Regulations, and it’s been subjected to many other tests to guarantee its performance for the long term. Deflection testing, wear testing and adhesion testing are among countless rigorous performance criteria that make the Delta20 the decking board of choice for discerning clients worldwide.

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Fixed direct to metal balcony frame.

Use the Delta deck board profile for fast and easy direct fix to steel or aluminium framing.


Please note: This fixing option is only applicable to the Delta20 and Delta30 Aluminium decking boards.

Fixed using box rail onto concrete balcony/terrace.

For smaller inset balconies and terraces where a low-cost, simple and flexible subframe system is required. The aluminium system comes with a combination of different joist and support cleat sizes allowing a versatile range of construction heights.

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J-ClipTM is fully compatible with the MyDek BoxRail System

For use on balconies, terraces with a concrete or similar solid base structure, walkways, boardwalks, residential, leisure and commercial areas.



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Board width x depth 144 x 20mm (150mm module)
Board length 4.2m or cut-to-length (subject to conditions)
Weight 12.47 kg/sqm


Board Aluminium grade 6063-T6
Expansion allowance 1mm per linear metre
Finish Polyester Powder Coating – 80micron slip-resistant


Decking board BD09


RAL 7016, 7037, 7039, 7040, 8014, 8019


For use on balconies, walkways, roof terraces, leisure areas and patios  


Profiles are packaged with protection against scratching and contamination, and supplied with appropriate support (e.g. stillage or pallet). Ensure that this level of protection is maintained until installation, including storage in dry conditions and support along the length of the profiles. Improper storage may lead to damage that falls outside the warranty.



Fire test (polyester powder coated) EN 13501 – 1 A1:2013 A2-s1,d0 A2-s1,d0
Deflection – 80KG at 600mm span EN310 1.59mm <5mm
Deflection – 2KN at 600mm span EN310 3.35mm <5mm
Slip resistance - Wet BS7976 -2 Pendulum Slip Test 40 PTV >36
Slip resistance - Dry BS7976 -2 Pendulum Slip Test 59 PTV >36
Coefficient of thermal expansion N/A 0.024mm/m/°C -
Coating Durability Qualicoat Class 2 powder - -

Accelerated wear test

(biomechanical - see appendix 1.1)


‘Very Slight’ at 50K 

‘Slight’ at 100K

Furniture leg test (scratching) EN424:2001 No damage Slight transfer  
Coating Adhesion ISO-0 ASTM-5B No separation -
UV Stability ISO2810 Class 2 3-year Florida
Embodied Carbon 0.0802 tonnes/m2 Class 2 3-year Florida


Deflection under load



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