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Balcony/terrace positive draining decking profile with A2 fire rating

The perfect A2 fire rated decking for new balconies 6sqm+ and all balcony applications, including stacked balconies that require positive drainage, projects that require privacy of a soffit detail and raised terraces, rooftops and walkways.

  • Full cell construction with built-in soffit
  • A2fl-s1 Fire Rating
  • 1050mm centre-to-centre span capability
  • Reeded surface
  • Positive-draining (integral water channel)
  • Cool-touch finish
  • Shadow gaps for traditional deck look
  • 25 year warranty
  • Fully recyclable at end of life


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Dura Deck Aluminium 18mm Positive Drain
Dura Deck Aluminium 18mm Positive Drain

Why choose our Aluminium Decking with Positive-Drain

  • 60% quicker to install than other fixing methods
  • Large spans reduce the cost of required balcony steelwork
  • Helps to convey rainwater to the drainage points specified as part of the design
  • Fire tested in conjunction with correct flooring test and installation method on a horizontal plane, for absolute peace of mind
  • 5.8 metre lengths (no need for joins that could compromise water management)
  • Finished ceiling beneath means no additional soffit costs
  • Meets NHBC balcony drainage standard
  • Double sided cell construction avoids twisting and warping during transportation and installation

Key Benefits

Safe and Cost Effective

Dura Deck Aluminium has been developed in conjunction with leading developers, contractors and balcony manufacturers. It provides a safe and cost-effective decking solution for balconies and high-rise terraces, and for any project that requires an A2 fire rating.

Suited to Off-Site Manufacturing Techniques

Spanning up to 1050mm between supports on a 5kN distributed load, the decking boards feature a grooved surface to aid rainwater dispersal and are particularly suited for use with ‘slide-on‘ cassette balconies. The majority of the decking boards can be installed during off-site manufacture, with the remaining boards sliding in as the balcony is lifted into place, improving the speed, quality and safety of the decking installation process, and reducing labour costs on-site.


Our positive draining deck board range meet the requirement for positive drainage, particularly on balconies. Water is guided to a gutter with a floor area of over 6m2 through the clever patented design of our decking board profiles (Patent No. GB 2 615 096).

Fire Tested to the Correct Methodology

Achieving an A2fl-s1 Fire Rating, Dura Deck Aluminium’s fire testing has been conducted in conjunction with the correct flooring test and installation method on a horizontal plane, for absolute peace of mind.

Advanced Structural Performance

The lightweight nature of Dura Deck Aluminium reduces the structural load on buildings. The products have undergone stringent testing to guarantee their effectiveness and performance under both point load and crowd loading in accordance with relevant building codes. Our published data meets the requirements of the most recent 2.0kN point load @ 0.5% deflection (L/200) BS 6399-1:1996) standard, rather than the now obsolete 4kn criteria referenced by many others.


The Dura Deck Aluminium range has a powder coated finish and comes with a 25 year warranty. Please refer to our supporting Technical Manual for full warranty conditions. You can activate your warranty within 30 day.

Colours & Trims

Our Aluminium Decking Products are available in 3 attractive, contemporary colours that look great in any commercial or residential environment.

Anthracite – RAL 7043

Cedar – RAL 1019

Mist – RAL 7001

Dura Deck Aluminium has a range of intelligently designed trims and accessories so you can be sure of a simple and efficient way to start, install and finish your aluminium decking balcony or terrace design. Enquire with our team to find out more.


Product Guide

Decking & Cladding


Aluminium Pedestals & Bearers

A2 fire-rated and height-adjustable support pedestals and bearers can be easily combined to suit all project needs. With 8 different heights of pedestals and 3 different heights of bearers, the Dura Composites system provides the most economical substructure combination on the market and is suitable for use as a decking substructure on external balconies, terraces roof gardens, domestic gardens, or for industrial flooring.

This system has been developed to be fully compatible with the latest developments in fire safety legislation and to improve building safety and achieves a Class A2 fire rating to EN13501-1 standards with its standard anthracite powder coated finish and an A1 rated mill finish is also available by special order.

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