Contact

  • Quarry and Yard:
    8200 Seven Locks Road, Bethesda, MD 20817

    Monday – Friday 7:30 AM – 4:00 PM
    Saturday Morning 7:30 AM – 11:30 AM

    Driving Directions
    We are located off I-495, the Washington, DC Beltway.  Take exit 39 West, towards Potomac.  The first intersection is Seven Locks Road – turn left at the light. We are approximately ¼ mile on the right.

    Google Maps

    Contact Us by Mail
    Tri-State Stone & Building Supply, Inc.
    P.O. Box 34300, Bethesda, MD 20827

    Phone: 301-365-2100 | Fax: 301-365-5524

    Email Us