DryJoistEZ® Deck Drainage System

Add value and extra living space to your outdoor living area.

From aluminum deck boards, to deck drainage systems, to deck railing systems– Wahoo Decks manufactures the materials you need to build your perfect outdoor deck space.

DryJoistEZ Logo

Double Your Outdoor Living Space!

DryJoistEZ is a 100% waterproof deck drainage system that creates dry space with a finished bead-board ceiling below your deck. One of the things our customers love most about DryJoistEZ is that it allows for the use of almost any wood or composite decking surface. This means that you can create a deck space with the look of a traditional deck, but with the added benefit of a completely waterproof aluminum deck drainage system and completely dry living area underneath your deck.

Other deck waterproofing systems on the market are either membrane or “under decking” systems that are installed below deck joists. Both of these traditional systems are highly labor-intensive and are only effective for limited amounts of time. DryJoistEZ provides a solid waterproof structure that will never leak. Additionally, DryJoistEZ is mounted on top of your deck frame, which extends the life of framing materials.

White DryJoistEZ Sample


DryJoistEZ Black Sample Color


  • Deck drainage system: the DryJoistEZ system does not come with a built-in deck surface. DryJoistEZ’s design versatility allows you to use the deck surface of your choice.
  • 100% watertight: create completely dry space with a finished ceiling below your deck.
  • DryJoistEZ is available in lengths up to 24 feet and single spans up to 2 feet.
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