Originally Posted by gow589
I don't think you could move a door up or down a 1/16" with a bumper jack. I have never ad a problem moving the door in small increments. With the bolts snug, loosen, minor adjustment, tighten done.
No offense, but you haven't done a lot of doors then. Often if they are hanging from the bolts and you loosen them without any support they will fall too far. It's also VERY hard to move doors up - at all or evenly - without some support under them. I've installed and adjusted MANY doors over 35 years in the biz - there are reasons people are making jacks and stands....