Use blocks to level jamb bottoms.
How to change a door hinge so door is level.
If you need to shim multiple hinges remove 1 at a time so you don t have to take the whole door off.
If you re installing a door on an unfinished floor and need space under the jambs for carpet just rest the jambs on temporary blocks while you re hanging the door.
Use a screwdriver to remove the screws from the hinge you re removing.
This can be a problem if you live in a older home or one that seems to be settling doors can be adjusted slightly.
Adjust the size of the blocks so the bottoms of the jambs are on a level plane.
Open the door to expose the screws in the hinges.
Set the screws aside so you can replace them later and pull the hinge off of the door and frame.
If the frame is not level the door will.
The angle is likely slight so look closely at the bubble in the level.
How to level a door frame.