Disclosed is a door assembly for enclosing a compartment, for instance a cabin attendant seat (CAS) compartment. The assembly generally includes spaced guides for guiding opening and closing movement of a bi-fold door including coupled upper and lower door sections. The door sections are coupled through an interface that allows vertical displacement of the lower door section relative to the upper door section when the door assembly is in the closed condition to engage or disengage latches from respective catches. In some embodiments, the assembly further includes cam latches and a biasing mechanism for driving bi-fold door movement toward the open condition, among other features.