Screened Porch on Existing Deck: Maryland & VA Guide

Yes, you can build a screened porch on an existing deck — but only if it meets specific structural requirements. Design Builders has evaluated hundreds of decks across Montgomery County, MD and Fairfax County, VA since 2006, and through that experience Design Builders has learned that most homeowners don't know the critical factors that determine whether their existing deck can support a screened addition. Understanding these requirements upfront saves time and money.


