Deck Cost Guide 2026: Maryland & Virginia Pricing

Deck costs in 2026 range widely based on materials, size, and complexity—but Montgomery County, MD and Fairfax County, VA homeowners can expect to invest between $15–$50+ per square foot for quality construction. This guide breaks down the real factors affecting your budget, from basic pressure-treated designs to premium composite decks, so you can plan your outdoor living investment confidently.
In 2026, deck costs in the Maryland-Virginia market typically range from $15,000 to $75,000+, with most homeowners investing between $25,000 and $45,000 for a quality composite deck with professional design and installation.
Since 2006, Design Builders has designed and built hundreds of custom decks throughout Montgomery County, Howard County, Fairfax County, and Arlington. Here's everything you need to know about deck costs in 2026.