These tools slip over the hinges when the door is closed.
Repair cracked door frame hinges.
How to repair a broken door hinge.
Chisel out the damaged wood and enlarge the area slightly to give the adhesive more area to grip.
The door is pulled open just past the point where the hinges bind.
Prep the damaged area.
If you have a centering hinge drill use the hinge as a template and the finish repair will be better than new and last for years.
For a more serious split you may be able to glue and clamp the door.
In particular the side where the hinges fasten onto the door tends to crack or split in certain situations.
Fix it the right way not the wrong way.
How to fix a door that cracked where the hinges go.
Try tightening the hinges which can loosen up over time causing the door to sag.
Many problems with frames and doors can be fixed by adjusting the hardware.
Hinge pins that are not fully inserted into the hinge.
After time the weight of the door will pull on the hinge and cause the door not to hang straight.
Another hint is to use a long screw in one of the holes in the top most hinge long enough to penetrate the stud.
At this point you may need to decide if you will be happy with the patched up door frame when you are done.
Over time the weight of a door can cause screws to pull out of their holes and make the hinges loose.
Serious splits in door frames.
To repair a split door frame remove the door strip and molding starting at the bottom of the frame and working your way up.
Repair a broken out door hinge.
The wrong way is a temporary fix not cool.
My house was built in the 1950s and all the door frames are steel with one side of the hinge welded to the frame.
Use a hinge binding tool hinge doctor to repair binding hinges.
Fill the void with glue.
Use wood putty to fill the crack and paint or varnish the door as needed.
Then measure 6 inches above and below the frame damage and carefully cut the damaged frame away at the marked measurements.
Remove all loose chips and blow off any remaining dust.