Chelsea triumph for Woodlink UK Lyptus® decking

6 June 2011
 Successfully tested by TRADA Technology, Woodlink UK's Lyptus® hardwood decking took centre stage at the Chelsea Flower Show in the Gold-medal winning Monaco Garden. Developed by Woodlink UK with partners Weyerhaeuser, Lyptus offers a sustainable alternative to traditional tropical timbers as it is produced from fast-growing trees on responsibly managed plantations in South America.

As Cyril Williams of Woodlink UK explained, however, ‘Green credentials are of little value if it cannot perform.  We have put our heart and soul into the product and wanted to prove, through testing by TRADA Technology, that its performance is as good as its looks.'

Dimensional stability is one of the most important aspects of  timber used as decking, as any warping can cause a trip hazard, as well as looking unsightly. Timber is a hygroscopic material, which means that its moisture content will change in response to the temperature and humidity of its surroundings, resulting in movement as the timber either shrinks or expands as it loses or gains moisture.

There are, however, no British Standards giving limits on distortion of decking, or guidance on test procedures, so TRADA Technology designed a test protocol, using two test rigs, and applied its own considerable experience to assess the performance of a sample of 145mm wide boards. Initial outdoor and indoor tests indicated that, ‘when appropriately fixed to TRADA Technology's recommendations to the substrate, little distortion of the boards in service occurred'.

Interestingly, the testing also demonstrated that because of the high tannin content of the timber, Lyptus was susceptible to iron staining, but this problem can be avoided if stainless steel fixings are used. TRADA Technology's Dr Andrew Pitman said, ‘Our long experience with timber decking enabled us to recognise the problem and find a solution.'


  • Lyptus® will be on display at the TRADA Technology-backed exhibition, Timber Expo on 27th & 28th September, at Coventry's Ricoh Arena, on UK distributor Hoppings' stand.
  • Plywood

    Panelco Limited

    Hadleigh Park
    Grindley Lane
    Blythe Bridge
    Stoke on Trent
    ST11 9LW

    t: 01782 392100

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    James Latham plc

    Unit 3, Swallow Park
    Finway Road
    Hemel Hempstead
    HP2 7QU

    t: 01442 849100

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    Rotafix (Northern) Limited

    Rotafix House
    West Glamorgan
    SA9 1UR

    t: 01639 730481

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