Recognising excellence through accreditation

Have you ever wondered if there are quality standards around timber decking and cladding products or services? Do you need technical advice or simply design inspiration? Look no further than the Timber Decking and Cladding Association (TDCA). We’re here to raise the bar on all things decking and cladding. Whether you’re a landscaper, architect, specifier, contractor or DIY enthusiast, we can help. We have industry experience, a library of free resources and a growing member supplier list with independent third-party verification.

To get a job done right first time, using the best calibre of products with correct standards of installation is essential. But whatever the market, it’s often difficult for a buyer to distinguish good from bad quality, whether it be a specialised deck fixing or a reputable cladding installer – especially when searching online. Price point isn’t always an indicator of reliability.

Step in DeckMark and CladMark. TDCA accreditation schemes which recognise manufacturers, suppliers and installers who work to the highest standards in their fields.  From wood coating manufacturers to deck design engineers, simply search our database to pinpoint specific suppliers. Or get in touch – TDCA offers a sourcing service, just give us your project details and we’ll find the right supplier for you.

Visit to learn more or call 01977 558147