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