The typical fix for a sagging door is to remove it from the frame sand or plane then refinish and repaint.
Top of door frame sagging.
Pictured above is a standard 3 0 36 wide hollow metal commercial entry door that has a sag condition caused by bent hinge mounting plates.
The sliding door then begins to drag under the weight.
How to adjust a steel door.
Plane the door with a belt sander.
Steps to repair a skewed door.
And when doors sag they tend to stick because they rub against the door jamb on the latch side of the door opening.
Close door and check the spacing at the top and latch side of the door.
And scraping marks can be seen on the under side of the top track.
Apart and run the point along the jamb.
This causes the latch side of the door to hit the door frame at the top and the threshold at the bottom.
This is because the screws in the hinges loosen and cause the door to fit improperly.
Worse if you sand or saw too much of the door during a humid season you could be stuck with large gaps when it becomes less muggy.
Hold door hinge against cardboard and use utility knife to cut around hinge.
Eventually the door will no longer move at all.
The most cost effective solution to this sagging header problem is to remove the door and plane a off the top of the door.
If your front door bathroom door bedroom door storm door screen door or entryway garage door does not shut properly something is loose has settled or out of alignment if when you shut the door it hits either at the top or bottom of the door frame it is sagging and needs to be repaired a sagging crooked or door that does not shut properly can be a pain when you try to shut it as the.
Remove appropriate hinge from door and jamb.
However this solution can be time consuming and a lot of work.
Steel entrance doors are prone to sagging or sticking after extended use.
How to adjust sagging doors that don t close because they rub the door frame old doors can drop and common problems symptoms when this occurs are that the top of the handle side of the door hits the top of the frame stopping the door from closing.
Ususally this is the top hinge but it s not unheard of for a bottom hinge to bend under weight such as from kids using the door like playground equipment.
Masking tape makes the pencil line easy to see.
Almost all sagging doors are due to loose hinges.