On Wed, 16 Apr 2008 15:50:28 -0400, "Percival P. Cassidy"
wrote:

Adjustable threshold is first thought -- many have an adjusting screw in
the threshold to allow for some adjustment.

Yes, I had investigated further and found that this is an adjustable
threshold -- but it's already in the lowest position.

They make adjustable hinges. I've seen them on more expensive doors
and work nice for fine adjustments of the door.

DAGS : adjustable door hinge.