"Leon" wrote in message ...
Two things are possibly wrong. 1. Either side of your door jam is not
plumb or your door is warped.

the door and reasonably high quality and testing indicates that it
isn't warped.

i'm pretty sure both sides of my door are not plumb. there really
isn't anything for them to be plumb to since the wall is pretty
warped.

but they should be plumb to each other. so i want to know if i can
effectively plumb the hinge side of my door by adding shims directly
underneath the hinges.

and if so, what is the formula for adusting (i.e. adding a shim to the
barrel side of the top, door facing hinge will push the top, swinging
side of the door to close earlier.