a dropped, boxed area of a ceiling or roof used to cover pipes and wiring that may run along a wall

A box-out at the ceiling typically 12" high and 14" deep. Often used for AC ductwork. Kitchen cabinets are installed up to it creating a step effect. Also called a fur-down or bulkhead.

The area in kitchens or laundry rooms extending from the top of the cabinets to the ceiling that is often covered with a border, used to hide old pipes or air ducts.

Area above wall or utility cabinets sometimes used to conceal plumbing, electrical, etc. May be a decorative focal point of room.

A lowered portion of a ceiling.

The area above the top edge of wall cabinets to the ceiling.