I have a similar problem to Dave, South Shields.
I have a porch area which has been enclosed with UPVc windows and a door. The flooring is sloped which,when the door is opened inwardly, it scrapes on the tiles. Fitting riser hinges would not hinder the actual closing or locking of the door.
Any idea of a supplier.
regards
David, Howarth
David Wright
August 2009