Our mid 90s monaco coaches had doors supplied by an outside supplier. I regret that I do not remember the supplier name, if indeed I ever knew. Later, probably around 2000, Monaco decided to make their own doors. They were arguably not as good, but it's the way it is. I think the Monaco built door relies on the scissor on the top of the door to 'lock' the door in the open position. Those owning the newer coaches will know better than I.
2016 Creekside 23RKS
2012 Ram 2500 Laramie 4X4 Cummins 6.7L