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  • 14 Photos
  • 14 Photos

Tri State Stone

15 reviews on
Building Materials & Supply
Open Now·7:30 AM - 4:00 PM
  • Mon:7:30 AM - 4:00 PM
  • Tue:7:30 AM - 4:00 PM
  • Wed:7:30 AM - 4:00 PM
  • Thu:7:30 AM - 4:00 PM
  • Fri:7:30 AM - 4:00 PM
  • Sat:7:30 AM - 11:30 AM
Tri State Stone Co. has been family owned and operated since 1926. The quarries flagship product is Carderock Stone. This beautiful building stone is a mica-sch... more
Tri State Stone Co. has been family owned and operated since 1926. The quarries flagship product is Carderock Stone. This beautiful building stone is a mica-schist quartzite, with horizontal and vertical cleavage making it easy to work into numerous installation styles.... less
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Reviews

  • Luciano M.
    Luciano M.
    11/20/2014
    I'm a native Washingtonian and I needed some kind of stone for a walkway and a driveway. I new once (long ago) there was a quarry at the beltway and River Road. I searched for it on the internet...more
  • Ella C.
    7/12/2019
    For some reason, finding a company that could deliver gravel to my house in DC was a huge challenge. Then I saw a recommendation for Tri-State on my local listserv so gave them a shot. I cannot...more
  • Nick S.
    Nick S.
    8/7/2018
    I visited their quarry. A man at the scale house told me that a loader would be with me shortly. After waiting 30 minutes I decided to call. The person I spoke to told me to flag down a loader, as...more
  • Ann C.
    Ann C.
    9/28/2018
    Local quarry that maintains a good selection of stones and provides generally good and attentive service even if you just drop in randomly with questions. Good supplier if Carderock Rock, a...more
  • Phil P.
    Phil P.
    3/7/2018
    Can't say enough good things about these folks. The selection of stone, to start, is almost infinite and they have some real experts there to help direct you to what you need for your project...more