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DIY Granite Countertop Installation

Writer's picture: brittany wolfebrittany wolfe

Updated: Nov 11, 2019



Countertops are a staple when it comes to the modern-day kitchen. There are plenty of varieties and choices to pick from for the homeowner but it can be safely said that there are none better than granite in this case. It is excellent to go with. In case you want to avoid the hefty installation cost and do it yourself, we have broken down the steps for a granite countertop in Denver for you to look over and maybe even put it to use if need be.


Step 1: Order the granite countertops

  • It is essential to remember that your measurements for the granite countertops are absolutely accurate. There are services available that offer you fabricated countertops which eliminate the expensive fabrication process. The setup requires sheets of plywood to be laid out on top of the cabinets to help support the granite.

  • Granite comes in multiple patterns and styles. Choosing one depends on a lot of factors such as the color of the cabinets and even flooring, style of the kitchen and availability of the stone. Also, note that the edge of the counter should have a bullnose or any other style of the finished edge.

  • Delivery of these stones takes time hence plan your installation accordingly.


Step 2: Prep the Cabinets for the Countertops

  • Cut the plywood to fit on top of the base cabinets. The plywood helps support the granite and enables enough clearance for the finished edge to be done and be clear of the drawers and doors.

  • Ensure the plywood does not protrude out too far from the cabinet as that makes it prone to damage, to itself and you.

  • To attach the plywood to the cabinet frame with screws, drill a pilot hole to avoid splitting the hardwood face frame. Remember to center the screws into the frames underneath.


Step 3: Prepare to Install Granite Countertops

  • It is best to get some help when working with such stuff since they are heavy and can weigh as much as 200 pounds. Hence you must be gentle when handling it.

  • Provide ample space to keep the slabs around while installing them and keep them upright and make sure they fall get into a domino type break.

  • Create a template of the wall to get an accurate measurement for the granite and that will most definitely help in installation as well.

  • A circular saw serves best while cutting the stone.

  • Test fit the pieces by fitting them on the plywood and be careful when handling them.


Step 4: Cut the Plywood Sinkhole

  • Set the granite in place for the sink on the counter, trace around its edges and on the stone and the plywood.

  • Remove all slabs that were dry fitted.

  • Make hols in the plywood and use a jigsaw to cut the plywood.

  • Drop the sink in its place


Step 5: Join the Granite Seams

  • Level the seams for the slabs.

  • Use screws to adjust the height of the slab from underneath to raise and lower the countertop.

  • Use an accurate level to fine-tune since tips of the screws from underneath of the slab.


Step 6: Glue Granite Countertops Down

  • With some help, lift the granite and put big dabs of silicone around the perimeter of the cabinets.

  • Put down a bead of caulk around the sink’s rim.

  • Apply another bead of caulk on top fo the sink rim to help waterproof the gap between the sink and the countertop.

  • Slowly lower the granite back to its original position.


Step 7: Glue the Seams

  • Tape the seam with masking tape.

  • To fill the seams, apply a dab of a polyester-based resin and add some color to match the granite

  • Mix with the help of a putty knife

  • Compare color against the stone

  • Create different colors to blend into the seam

  • Add hardener only enough to apply ina five minute period

  • Apply a base coat that's neutral in color

  • Dab and smooth over as you go along

  • Apply the lighter shades first and the darkest shade last

  • Remove the masking tape as soon as you’re done so that it doesn’t dry off on the tape

  • 30 minutes, smooth over with a seam stone

  • Apply firm pressure over a slow speed

  • Small circular motions work best

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