Every design is more beautiful with Carderock Stone!
Tri-State Stone and Building Supply, Inc. is a fourth generation owned and operated quarrier and dealer of natural stone. Carderock Stone, our signature product, is a beautiful building stone that has been the choice of architects, designers, builders and masons for over 85 years. We are also a full service natural stone dealer with over 150 products in stock. We service the national and international marketplace through dealers or directly from our Bethesda, Maryland location