Office furniture namely, modular wall partitions for defining customized work areas adapted to incorporate modular heating, ventilation and air conditioning distribution duct work, vents, thermostatic controls, campers and radiant heaters for control of air flow and air temperature at each work area; office furniture, namely, wall partitions, and accessories for wall partitions namely extension panels to extend the height of a wall partition and overhead, raceways for securing to the top of a wall partition adapted to contain utilities, communication wiring, communication connectors, communication controls, electrical wiring, electrical connection boxes, electrical controls, overhead lighting, heating, ventilation and air conditioning ducts, vents and controls