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Quality Standards for Slab Countertops- What are the industry standards cocerning granite seams, and the splitting of these seams?

April 26, 2017granite Industry quality seams slab splitting Standards

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Quality Standards for Slab Countertops- What are the industry standards cocerning granite seams, and the splitting of these seams?

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ANSWER – Countertops are to be flat within 1/8″ in 10 feet. Transition joints from counter to wall or other material is to be 1/8″ with a tolerance of +/- 1/64″. Joint seams widths are to be 1/16″ with a tolerance of +/- 1/64″. The seams should not split. Lippage at seams can not be more than 1/32″ The Marble Institute of America has a Dimension Stone Design manual that you can buy at http://www.marble-institute.com/industryresources/manual.cfm. Good Luck!