Cottonwood, AZ
phone(928) 634-2655
Main Place Floor & Window Fashions in Sedona and Verde Valley


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What you need to know about stone

Although Cornerstone Materials is a new name, owner Don Blaser previously owned American Sandstone for nearly twenty years. Four years after selling his own company, Don reacquired his largest quarry and re-hired all of his previous employees. Today, Cornerstone Materials, LLC, is once again a family-owned flagstone mining operation in Chino Valley, Arizona. Cornerstone Materials, LLC, is a family owned and operated flagstone mining operation in Chino Valley, Arizona, managed under Don't guidance by his son-in-law and daughter, Mike and Tammy Stezenski.

Cornerstone Materials quarries and supplies quality flagstone and veneer products to hundreds of stone dealers in all parts of the United States.Those dealers are their primary focus as they strive to offer the best customer service and maintain sufficient material inventories on hand at all times.
We are happy to add Cornerstone's wide range of stone products to our growing range of offerings, and are particularly pleased to support a locally owned and operated company.

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