Installing Granite Countertops Over Polymer Cabinets 5/29/2012 11:22:00 AM
Q: We’ve received an order to provide granite countertops that are to be installed over polymer cabinets. The cabinet provider has advised us they will not stick to the cabinets. How should we secure the tops?
A: The mass of the stone tops will generally hold them in place; however, there should be some restraint of them, particularly if there are any unsupported overhangs. I would recommend using a couple of back anchors in each piece, and then adding a member or clip to the cabinet frame to which the back anchors can be fastened. I’m not normally a big fan of epoxy threaded inserts, but in a controlled climate condition such as this they would probably be acceptable as well and give the advantage of a little less protrusion inside the cabinet. Leaving it without any restraint would be ill advised. If someone should sit on the overhanging portion and cause it to tip, there could be some serious occupant safety issues.