I'm (legally, of course) dealing with a door that seems to be shim-proof. Two latches protrude from the door, one that goes into a hole in the wall (the larger one), and one that rests on the strike plate (smaller one). If the small one is not fully protruding i.e. it is resting on the strike plate, the larger latch will not budge. This makes in impossible to shim. Aside from offering a solution, can anyone tell me what this type of system is called, so that I may further research it myself?
Yes, I realize that may sound ramblish/ comfusing
Yes, I am a noob, thanks
Yes, I really do appreciate your help