Floating Deck Substrates

If you need to install a deck over a membrane while meeting code compliances for drainage and entry height requirements, you have just discovered one of the fastest, easiest and most durable solutions.


The Deck Chair adjustable joist system is made from post-treated LVL timber components and assembled in factory, ready to go with composite rubber joist mounts already attached. This product is ingenious, and is guaranteed to last for decades.

The joists come in 1200mm module lengths that connect together. These are adjustable for 0–2 degree falls. Quick and simple installation saves time and money, and delivers a perfect result every time.

Enjoy peace of mind with stable performance for many years whilst also protecting your membrane surface.

  • A cost-effective, supportive substructure for laying decks over concrete and membrane surfaces

  • Allows level entry, meeting code compliance for drainage and entry height requirements

  • Joists made of a post-treated LVL (Laminated Veneer Lumber) that won’t warp or twist

  • Mounts are made from a composite rubber derived from recycled car tires

  • Customers have reported with 100% unanimity, how simple and effective the Deck Chair system is