The CeilingMAX system includes the top hanger (8-foot), the runner (8-foot), the wall bracket (8-foot) and the cross tee (2-foot). Since CeilingMAX is made of PVC plastic, a 4-foot cross tee only held up on each end by the top hanger, plus the weight of the tile resting on the cross tee, would cause the cross tee to sag. This is the reason a 4-foot tee is not manufactured for this particular system.