An animal housing assembly includes a cage assembly coupled to a base member to provide an enclosure for one or more animals to be kept in captivity. The base member includes a slidable tray coupled thereto, the tray being configured to move from a closed position to an open position to allow cleaning of the base member. When in a closed position, a portion of the tray forms a portion of the floor of the base member. When the tray moves from the closed position to the open position, the tray translates in a direction away from the base member, thereby exposing an aperture defined in the floor of the base member. The aperture may be shaped and/or sized to allow debris to fall through the floor of the base member, thereby allowing removal of unwanted debris and cleaning of the base member.