Industry jargon.  Industry lingo.  It’s a confusing fact of life and enough to drive consumers crazy when trying to compare products.

So in the spirit of clarity, this article is dedicated to the semantics of a deck with a room underneath.

St. Louis Screened Patio Enclosures with Underdecking by Archadeck

Deck and Screened Patio Enclosure by Archadeck in St. Louis, Kirkwood area

Did you know there is a way to create usable space for outdoor living, or a protected storage space, below your deck?

Common industry terminology includes: underdecking, under deck ceiling, under deck roofing, under deck drainage system.

Customers might also ask for a ‘screened in deck, ‘rain deck’ or even ‘roof deck’ too.

Bottom line:  Knowledgeable contractors can build-out the area underneath an elevated deck to create an outdoor room  — open or enclosed — that’s dry and ready to use.

Vinyl ceiling panels that are suitable for all types of weather, are installed and become a rain-carrying drainage system to divert water away from your upper level deck.  Experienced contractors can use this deck design and construction method to double your outdoor living area, efficiently and cost-effectively.

Underdecking for Elevated Decks, Greater St. Louis, by Archadeck

Underdecking for Elevated Deck in the Greater St. Louis area, Collinsville, by Archadeck

The end product:  an outdoor space that’s bright and moisture-free, shady and comfortable, rain or shine… and usable nearly year-round.

Add a few accessories such as lighting, ceiling fan, electrical access and cozy furniture and you’ll have an outdoor-hub that becomes the focus of social gatherings.

Visit our website, Archadeck of West County and St. Charles County in St. Louis, Missouri for more information and ideas for an under deck project.

We’re a great resource to help you salvage and restore the valued space underneath your elevated or two story deck.

As a leading St. Louis deck builder, we also design and build other outdoor living spaces such as porches, screen rooms and enclosures, shade pergolas, gazebos … and much more.  Call 636-227-0800 for a no charge consultation and project estimate.

If, however, you live outside of metropolitan St. Louis, just visit and type in your zip code for a location near you.

Resources:  TimberTech, Dry Space

Editor’s Note for Additional Reading:

St. Louis Mo:  Outdoor living design trends by Archadeck

St. Louis Deck Contractor:  Adding a roof to your deck design