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DryJoist was named ‘One of the 50 Most Innovative Products for 2008’ by Professional Remodeler Magazine. Unlike traditional wooden deck joists, DryJoist is the first and only structural deck drainage system – meaning the deck’s surface boards are supported by the same structural design that creates a 100% dry area below. hence the name – DryJoist

Deck Design with a Waterproof Solution: creating dry space below your deck is no longer an afterthought but an asset to your deck’s design. The integrative design is a single system; eliminating ‘add-on’ under deck gutter systems or drainage substructures.

Engineered for versatility; DryJoist components provide installation speed and ease of workability to build a deck frame that has the structural strength to support and secure any type of decking material in any type of design or pattern ….while simultaneously forming a waterproof barrier for the area below.

Find the answers to frequently asked questions on product information and installation for the first and only structural deck drainage system.

For deck design ideas and inspiration view the projects and products that make it possible to build a truly custom deck surface on the same joist structure that creates a dry outdoor living retreat below.

View and download printer friendly PDF documents such as installation guides, technical deck specs, and warranty information including the only Leak Proof Guarantee in the market. Find the information you need to build a dream deck, whether you’re a DIY homeowner, qualified builder or professional remodeler.





DryJoist and DryJoist-EZ have US & international patents pending