When I ordered my North Trail, I wanted a ladder as well. The trailer came without one and the dealer called Heartland for placement to add one. The only place was on the right rear, however since the shower has a skylight, there was no place for the curved part of the ladder to be secured to the roof. Hence if you have a skylight in your shower on the North Trail with a right rear shower, you cannot add the ladder. My North Trail is a 20012, so perhaps the newer ones have changed.