How to Cut Formica to Install a Kitchen Sink

By Michael Straessle

Formica countertops require special care after installation. The same is true for Formica before installation, especially when you cut a hole for the kitchen sink. Formica is a form of plastic laminate that comes in many colors and styles. The finish makes the difference in care. High-gloss finishes require special handling to prevent scratches. However, to cut Formica or any laminate countertop, cutting it upside down is commonly recommended.

List of Items Needed

  • 2 sawhorses
  • Carpet remnants or soft cloth
  • Framing square
  • Variable speed drill
  • 3/8-inch drill bit
  • Jigsaw
  • Rotary tool and sanding band
  1. Measure from the end of the cabinets to the center of the sink cabinet and add 1 inch. Formica kitchen countertops hang over the edge of the cabinets by 1 inch on the sides and the front.

  2. Place two sawhorses about 48 inches apart and put carpet remnants or other soft material on them. Set the Formica top on the sawhorses upside down.

  3. Measure from the side of the countertop that goes on the cabinet you measured from in the previous step and mark the center of the sink cabinet on the bottom of the countertop. This gives you the center of the hole for the sink.

  4. Put the framing square on the mark and draw a line across the depth of the Formica top. Place the template provided with the sink on the bottom of the countertop and center it with the centerline drawn.

  5. Adjust the template to leave a 1-inch space between it and the front of the countertop. Trace the pattern onto the countertop and remove the template.

  6. Drill a 3/8-inch hole in the center of the cutout for the jigsaw blade. Cut the sinkhole out with the jigsaw.

  7. Smooth the edge out with a rotary tool and a sanding band. Any roughness or fraying left over from the jigsaw cut can easily be smoothed and shaped by doing this.

Tips and Warnings

  • It is best to use a new jigsaw blade when cutting Formica.
  • Do not leave power tools within the reach of children.

© Demand Media 2011