05-01-2018, 10:01 AM
(This post was last modified: 05-01-2018, 10:07 AM by Martin Prior.)
The RP door is a horrible lash-up, the result of trying to make the bottom outer corner about 1" thinner than on the previous, much stronger RN design. It relies for any stiffness on a thin ply panel and a flat steel strip which slots into the bottom fold of the doorskin.
We see lots of RP doors. two-thirds of which have been incorrectly repaired at some time and are too thick to close properly.
Throwing out at the bottom rear corner may be due to the above, or other bad door frame repairs. It may also be due to inaccurate repairs to the bottom of the B-post. A relatively simple test is to make a top-to-bottom template of the profile of the A-post. The front and back profiles of the door and also that of the B-post should all match this; if they don't then more investigation will be needed.
As I said, we deal with lots of these, so if you need any further guidance, please let me know. We can also (sorry, commercial plug coming up) supply any replacement woodwork that may be needed and can fit it for you if necessary.