PDP uses only first quality, select stone. Our slabs are factory sealed with the strongest 10X sealer available. We perform a wood-to-cabinet templating process to ensure a perfect fit and add cabinet support when necessary. PDP takes special consideration where there are cutouts and sinks by inserting rodding to create additional strength. When seams are necessary, PDP has developed a unique process to add 30% greater contact at the seam site. This has proven to stabilize the granite in all directions. PDP receives numerous phone calls to repair the "other guy's" less professional work. When brackets are needed, we strictly follow the guidelines set forth by the Marble Institute Of America. When you call PDP Countertops, you are making the smart choice for a lifetime of worry-free granite