The universal aisle containment system shall be configurable to roof containment (typically used for Cold Aisle Containment) and vertical wall containment (typically used for Hot Aisle Containment). The system shall be compatible with all major cabinet brands and sizes. This system shall be a floor mounted free structure. The system shall be comprised of wall beams, end-of-row frames, dual sliding doors, and ceiling structures for roof containment or wall structures for wall containment. The system is independent of the cabinets; hence cabinets can be rolled-in/out easily. System height shall be adjustable from 42 RU to 52 RU with expandable containment length. Tool-less blanking panels shall be used to seal the area above shorter cabinets. Unoccupied cabinet space shall be sealed with full height blanking panels. The system shall be deployed on raised or slab floors. The system shall be capable of being added without disrupting existing in-cabinet equipment. This system shall match both current and future data center infrastructure.