A patient support apparatus comprises a support frame and a patient support deck carried by the support frame. The patient support deck has a foot section configured to articulate relative to the support frame. A deck extension assembly comprises an extension frame and a deck extension section configured to extend and retract relative to the support frame. One more bearings are arranged between the deck extension section and the support frame. The deck extension section is movably coupled to the extension frame so that the deck extension section is able to move relative to the extension frame and relative to the foot section when the deck extension section extends and retracts relative to the support frame such that the deck extension section maintains contact with the bearing when extending and retracting relative to the support frame.