A kennel door apparatus includes a pair of first bracket supports and a pair of second bracket support mounted to a kennel frame, an first and second guide rail mounted between the first and second support brackets, and an first door hinge and a second door hinge each separately coupled with the guide rails and bracket supports, and the hinges mounted to a door support that is mounted to a kennel door. The apparatus works cooperatively to slidably move the kennel door to a position adjacent the lateral wall of the kennel housing or frame.