Apparatus and methods for cabinet devices for lavatories are provided. In one embodiment, a method for resupplying a lavatory in an aircraft includes removing a first amenities module from an amenities cabinet in the lavatory; and inserting a second amenities module into the amenities cabinet, wherein the first and second amenities modules include a plurality of amenity compartments. In another embodiment, a method of providing a lavatory unit includes providing a cabinet assembly including a first wall having an opening disposed therethrough and a second wall having at least one access port; inserting a module into the cabinet assembly through the opening in the first wall, the module having at least one compartment disposed therein; and aligning the at least one compartment with the at least one access port.