Ceiling pockets do not require sprinklers unless they are over 36" deep and over _____ square feet in size.

Ceiling pockets, which are recesses in ceilings often used for lighting or other utilities, generally do not require sprinklers unless they exceed certain measurements. In this case, if the pocket depth exceeds 36 inches and the area is greater than 1000 square feet, sprinklers become necessary to ensure adequate fire protection. This requirement is established to minimize the risk of fire spread and to provide sufficient coverage in spaces where smoke or heat might accumulate, protecting both property and occupants.

Sprinkler regulations are designed to adapt to the unique challenges posed by different structures, and the 1000 square foot threshold acknowledges that larger enclosed spaces pose a greater fire risk. In smaller ceiling pockets, there may be less concern about the accumulation of heat and smoke, thus justifying the absence of sprinklers.