A closure system for a memorial product, such as a columbarium, is disclosed. In one embodiment, the closure system is configured to be mounted to a niche compartment such that an opening of the niche compartment is covered. In one embodiment, the closure system includes a face plate hanger and a face plate. The face plate hanger may include first and second rails that are generally directed towards each other. The face plate may be provided with a first channel constructed to receive the first rail and a second channel constructed to receive the second rail. The face plate hanger may also include a cover panel that is configured to cover the niche opening. A columbarium is also disclosed in which a cabinet structure is provided that defines a plurality of niche compartments wherein each of the compartments has an opening that is covered by the above described closure system.