A door assembly for an animal enclosure, comprising: a door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough and enter or exit the interior of the enclosure; a door configured to move laterally between an open position and a close position relative to the door frame, the door having a plurality of interconnected horizontal and vertical wires and being slidably coupled to the doorframe to allow egress and ingress through the opening; at least two mechanisms releasably coupling the door to the door frame in the close position, where a first of the mechanisms is pivotably coupled to the door and a second of the mechanisms is affixed to the door frame; said first of the mechanisms comprising a latch pivotably coupled to the door, wherein the latch includes a latching mechanism removably coupled to one of the plurality of horizontal wires of the door frame; a first vertical wire and a second vertical wire of the door, the first vertical wire and the second vertical wire being spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door; and a first guide wire and a second guide wire coupled to the door frame; wherein, the first vertical wire is coupled to and moves along the first guide wire between the open and close positions (900, 800), and the second vertical wire is coupled to and moves along the second guide wire between the open and close positions; characterised in that the door assembly further comprises a first wire of the plurality of horizontal wires of the door having a first end and a second end, the first end being elastically bent outwards away from an interior of the animal enclosure, wherein the first end engages said second mechanism in the close position and maintains the door in the close position until the first end is disengaged from the second mechanism. a door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough and enter or exit the interior of the enclosure; a door configured to move laterally between an open position and a close position relative to the door frame, the door having a plurality of interconnected horizontal and vertical wires and being slidably coupled to the doorframe to allow egress and ingress through the opening; at least two mechanisms releasably coupling the door to the door frame in the close position, where a first of the mechanisms is pivotably coupled to the door and a second of the mechanisms is affixed to the door frame; said first of the mechanisms comprising a latch pivotably coupled to the door, wherein the latch includes a latching mechanism removably coupled to one of the plurality of horizontal wires of the door frame; a first vertical wire and a second vertical wire of the door, the first vertical wire and the second vertical wire being spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door; and a first guide wire and a second guide wire coupled to the door frame;