How to Install Thresholds With Laminate Flooring


The threshold is a separation between areas. A typical threshold separates the exterior from the interior of your house at a door. If the threshold is broken down, it may allow water and air to penetrate your home and can cause damage to your laminate floors. When this is the case, the do-it-yourselfer can remove the old threshold and replace it with a new one that will seal out the elements from your home.

Things You'll Need

  • Tape measure
  • Circular saw
  • Utility knife
  • Putty knife
  • Pry bar
  • Scrap piece if wood
  • Metal hack saw
  • Jig saw
  • Silicon adhesive
  • Caulk gun
  • Screw gun

Remove The Threshold

  • Purchase the new threshold before you remove the old one. You do not want to leave your home exposed to the elements. Use a tape measure to gauge the proper size.

  • Remove the old threshold. Most exterior thresholds are aluminum with a rubber gasket. Many times the gasket can be replaced. If this is not the case, adjust a circular saw depth of cut to 3/8-inch deep. This will allow you to cut the threshold without damaging the floor. Cut the threshold into two pieces.

  • Cut any caulking that is between the threshold and the door jamb and casing. This will make it easier to remove the threshold. Use a sharp utility knife and a putty knife.

  • Pry out the old threshold from the center where you cut the threshold in two. Use a pry bar and a scrap piece of wood for this. Many times the threshold will have an adhesive holding it in position.

Install new Threshold

  • Clean off the subfloor where the new threshold will be installed. Scrape off any glue or silicon adhesive with a heavy-duty putty knife. Measure the opening for the new threshold. This is the width you will need to cut the new threshold to fit. Use a tape measure to measure the door opening where the threshold will be installed.

  • Cut the new threshold to length using a metal hack saw or a jig saw with a metal blade. Dry fit the threshold into the opening to check the fit.

  • Remove the threshold and apply a silicon adhesive to the subfloor. Use a caulk gun for this. Put the new threshold in place, making sure the back of the threshold is pushed back against the laminate flooring so no gaps are visible.

  • Use a screw gun to screw the threshold in place with the supplied anchors.

  • Caulk with a caulk gun a good silicon between the door and the threshold.

Tips & Warnings

  • Wear knee pads to protect your knees while working on the floor.
  • Wear safety glasses when operating power tools.

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  • Photo Credit Comstock/Comstock/Getty Images
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