Calstone Co

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Established in 1948, Calstone offers concrete masonry and landscaping products in northern California. The company operates through four manufacturing facilities located in Sunnyvale, San Martin and Galt, Calif. Calstone provides more than 600 varieties and sizes of concrete masonry, landscaping products and custom-made units to clients in retail trade and construction industries. It sells a wide range of concrete pavers products, such as quarry stone, river rock, circle cobble, turfstone, classic cobble and lighted pavers. It also stocks several concrete masonry units, including precision, split face, slump stone and designer series. In addition, Calstone offers a variety of segmented retaining walls and fencewall systems. The company has an affiliation with the California Concrete Masonry Association.