Maybe someone bumped into it recently.
Garage door has gap on one side.
If that point is more than four feet or less than three feet above the ground you will need to balance the door.
Rats need no more than the size of a quarter.
Or it could just be that the hardware has become loose over time.
2 brace the open door.
A garage door gap of almost any size is an invitation to unwanted guests.
Mice can squeeze through a garage door gap the size of a dime.
The door runs are housed in a garage door track one on each side of the garage door.
If this has happened to you you can add more concrete to the floor in order to bring it back up to the right level.
If you ve had your door for a while or are in and out of it a lot it can easily end up out of alignment.
Unscrew the strike and slide.
It s possible that the concrete floor of your garage has settled over time leaving a gap between it and the bottom of the door.
Gaps along the sides and top of the door let in wind rain and snow and gaps along the floor let in not just weather but also critters.
If the gap along the side of your door is so large that the latch won t catch or barely catches adjusting the strike can reduce the gap to ensure proper operation.
This will help you create a flat and level surface so the gap will close.