I had to use a generic ladder from CW because of the same issue with Jayco not making one for my Alante, I will try to find the make/model. Be SURE to get the rear wall BLOCK diagram from Jayco CS, as normally there are only backing block to screw the ladder too on one side. And when looking at the diagram be sure of the VIEW orientation as mine was from the inside, making the view reversed when looking at the rear from outside.... this is how I ended up with TWO ladders on the back, CW strikes again!