How to Attach a Granite Countertop to a Cabinet


Granite is one of the most elegant and popular countertop surfaces available, and its inherent strength makes it perfect for this purpose. Installing granite is a relatively simple process but may require someone to help you to lift the stone since its strength also makes it very heavy. Your cabinet should be strong enough to support a granite surface, and most are, but you should consult with the manufacturer if you are unsure.

Things You'll Need

  • Granite countertop
  • 3/4" plywood
  • Jigsaw
  • Clear silicon caulk
  • Caulk gun
  • Putty knife
  • Clean the surface of the cabinet of any loose debris or dust.

  • Cut a piece of 3/4" plywood that will sit flush with the edges of the cabinet.

  • Lay a 1/4" bead of caulk across the top of the entire cabinet frame.

  • Set the plywood on top of the cabinet.

  • Lay a 1/4" bead of caulk across the surface of the plywood in lines every six inches.

  • Place the granite countertop on top of the plywood in its proper position. Do this in a manner that permits you to lower the granite directly into place so you do not have to shift it excessively to get it into the proper position.

  • Remove any caulk that has been extruded, with a putty knife and wash cloth.

  • Allow the caulk to set for 48 hours before applying any weight to the granite.

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