Tri-State Stone and Building Supply Inc.

Tri-State Stone and Building Supply has been supplying Carderock® stone, building stone and building materials to the greater Washington DC Metropolitan area for over 90 years. Family owned and operated since its inception in 1926.

We carry an extensive inventory of hand selected building stone and building materials including flagstone, wallstone, decorative landscape stone, building stone, and veneers.

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We are the exclusive quarriers of Carderock® Stone.

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Tri-State Stone and Building Supply, Inc. | Carderock® Wall

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We are the exclusive quarriers of 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. The vibrant blues, browns, grays and greens create an aesthetically pleasing palette of colors for most any building stone project. The unique colors, durability and ease of use have made Carderock® Stone a favorite of architects, designers, stone masons and homeowners for generations.

Quarriers of Carderock® Stone

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We deliver Aggregates, Stone, and Bulk Mulch to Greater Washington Metro Area including Northern Virginia and Maryland. #wedeliver
We stock Empire Blended Products Inc EM-CRYL 600 FORTIFIER Acrylic Latex Fortifier for Cement & Gypsum Mixes. #masonryproducts #instock
In stock now! Empire Blended Products Inc EM-BOND C Concrete Bonding Agent. #masonryproducts #instocknow
Empire Blended Products Inc All Temp Multi-purpose Liquid Admixer / Accelerator for Cement Based Materials.  1 gallon containers in stock. #concreteaccelerators
Bonstone TRAVFILL Travertine UV stable urethane - will not discolor.  Exterior or interior stone aesthetic patch in stock. #masonrypatch #masonryproducts
Gin Block Wheels 12" Heavy Duty in stock.
Now in stock! Vaughn 24 oz Brick Hammers. #masonrytools #instocknow
Now in stock! Vaughan 24 oz Brick Hammers with Carbide Tip.  #masonrytools #instocknow