Replace Rotted Door Frame Threshold

Know the parts that make up the exterior door threshold.

Replace rotted door frame threshold.

Prep with replacement at the ready photo by reena bammi. Most exterior thresholds also have a sill beneath them. To remove and replace a door sill. If your threshold is in rough shape replace it.

Measure and cut the replacement jamb to length. If the threshold is rotted the sill probably is too. Use a scrap of the door jamb to scribe the threshold angle transfer the angle to the door stop on the replacement jamb and notch the jamb. Measure from the threshold to the bottom of the door stop.

To repair rotted door frame first remove rotted wood with a 5 in 1 or other sharp tool. The door sill or threshold is the bottom portion of your exterior door frame. 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.

It helps to keep the elements out and provides a seal as well as a place to step as you enter the home. Click enlarge this image to view illustration labels. Remove the screws holding the metal threshold in place. Measure the length width and thickness of the old threshold and have a replacement with a similar pro file on.

Then coat the rotted door frame area with wood hardener as shown. Remove the old door sill from beneath the door frame. Remove the rotted jamb by tapping it away from the head jamb and cutting the nails. Carefully measure the doorway for the new threshold.

Position the old door sill on the new sill and trace. Pull the rubber gasket out of the grooves on the metal threshold. Measure between the outside edges of the door casing. Thresholds come in wood and metal both of which come with a rubber gasket for sealing out the cold.

How to use epoxy on wood for repairs. How to replace a door threshold in 9 steps step 1. Cut the rotten door sill into pieces using an oscillating tool or circular saw. The sill is beveled on one side to drain water away from the house.