A patient support apparatus comprising a support frame and a patient support deck operatively attached to the support frame. The patient support deck has at least one deck section arranged for movement relative to the support frame. An actuator is arranged to move the deck section between an initial configuration and one or more raised configurations relative to the support frame. A link supports the deck section for movement with respect to the support frame. The link has a first end pivotally attached to the support frame, a second end pivotally attached to the deck section, and a protruding stop formed between the first end and the second end arranged to abut the deck section so as to prevent the actuator from moving the deck section beyond a maximum raised configuration.