Methods, devices and program products are provided for a medical instrumentation storage cabinet. First and second instrumentation retention trays are configured to receive surgical instruments. The housing includes a top plate, a bottom shelf and at least one intermediate shelf there between. The bottom and intermediate shelfs and the first and second instrumentation retention trays include a plurality of holes there through to allow passage of a sterilization medium during a sterilization process. Standoffs are distributed about a perimeter of the housing. The standoffs separate the intermediate shelf from the top plate and bottom shelf to define first and second tray storage areas there between. The first and second tray storage areas have a shape and dimension to receive the first and second instrumentation retention trays. The standoffs are spaced apart from one another to define tray passages there between. The tray passages re sized and located to allow both of the first and second instrumentation retention trays to be inserted into the housing and opened to an open position relative to the housing in at least three directions.