A door jamb is the vertical frame that surrounds a door. It provides support for the door and helps to keep it in place. If the door jamb is broken, it can cause the door to sag or become misaligned. This can make it difficult to open and close the door, and it can also allow drafts to enter the home.
There are a few different ways to fix a broken door jamb. The best method will depend on the extent of the damage. If the damage is minor, you may be able to repair it with wood filler or epoxy. However, if the damage is more severe, you may need to replace the entire door jamb.