• Surface Finishes
• Visual Style
• Performance
• Moisture
• Wood Protection
• Fire Protection
• Independant advice

The Timber Decking and Cladding Association (TDCA) is an independent organisation.

We are a technical and advisory body that operates on a not for profit basis. We provide guidance on how to correctly specify and install timber decking and cladding.

Case Studies

Want to see examples of decking or cladding in action? Check out our Case Studies section. We feature a range of projects that demonstrate the versatility of timber as a practical and attractive material. We hope they will inspire you to choose timber decking or cladding for your next project.

All you need to know about quality deck design, installation and materials

The Timber Decking and Cladding Association (TDCA) is an independent organisation. We are a technical and advisory body that operates on a not for profit basis. We provide guidance on how to correctly specify and install timber decking and cladding.


We advise you to use DeckMark approved materials and/or professional installers to help ensure that your timber decking or cladding is fit for purpose. DeckMark and CladMark are the quality schemes operated by the TDCA. It means that the material or the installer meets our quality standards.

Independance advice

Access to comprehensive guidance on all aspects of timber decking and cladding and to quality assured suppliers.

Trading Since

1999