Replace Rotted Door Frame Threshold

Prep with replacement at the ready photo by reena bammi.

Replace rotted door frame threshold.

The new threshold should have a similar profile to your old threshold and be 1 to 2 inches longer than the length of the doorway so that you can cut it for an exact fit. Carefully measure the doorway for the new threshold. Thresholds come in wood and metal both of which come with a rubber gasket for sealing out the cold. Mix polyester wood filler or bondo wood filler and press it into the recess with a putty knife.

Remove the old door sill from beneath the door frame. The door sill or threshold is the bottom portion of your exterior door frame. Remove the screws holding the metal threshold in place. Remove the rotted jamb by tapping it away from the head jamb and cutting the nails.

How to use epoxy on wood for repairs. Measure from the threshold to the bottom of the door stop. How to replace a door threshold in 9 steps step 1. Most exterior thresholds also have a sill beneath them.

Cut the rotten door sill into pieces using an oscillating tool or circular saw. Know the parts that make up the exterior door threshold. Pull the rubber gasket out of the grooves on the metal threshold. Then coat the rotted door frame area with wood hardener as shown.

Measure the length width and thickness of the old threshold and have a replacement with a similar pro file on. If your threshold is in rough shape replace it. If the threshold is rotted the sill probably is too. My techniques show you how to adjust and seal up your thre.

In this video i explain in detail how to repair a rotten door threshold with fiberglass and bondo. Measure between the outside edges of the door casing. To remove and replace a door sill. It helps to keep the elements out and provides a seal as well as a place to step as you enter the home.

To repair rotted door frame first remove rotted wood with a 5 in 1 or other sharp tool. These thresholds wear out over time because of foot traffic and exposure to the weather. The sill is beveled on one side to drain water away from the house. Position the old door sill on the new sill and trace.