If your door wont stay open then it is out of plumb ie.
Fix door that won t stay open.
The goal is to restore the hinges to plumb.
Place that piece of cardboard on the door frame where the hinge will be screwed back into place.
Open the door step in to the opening and turn to face the hinges.
If the door tends to swing slowly closed when left open you can correct the problem by either moving the top hinge leaf on the door jamb slightly closer to the door stop molding or by moving the.
This should give it a slight bend which will add tension to the hinge when you re install it.
How to fix a door that won t stay open.
Rather than remove and rehang it try removing one of the hinge pins.
If the top hinge is to the left or right of the bottom hinge the door is going to swing in the direction of the top hinge.
On jun 21 2020.
Cut a piece of thin cardboard to the size and shape of the hinge side piece.
However while this might be a good solution for a squeaky door it won t do much to fix a door that won t stay open.
When a door won t stay open the casing is probably leaning slightly in the wall frame.
Place it on a hard surface and whack it in the middle with a hammer.
One quick way to compensate for the misalignment is to get a file and file down the bottom of the strike plate opening where it meets the hole in the door jamb.
Hinge pins one of the most commonly recommended solutions is to remove clean and oil the hinge pins.
In fact this solution is more likely to make the problem worse.
If the door still won t stay open without assistance remove the screws from the top hinge first.
When the hinges are plumb the door should remain in whatever position it is placed.