No storage is allowed within how many inches of sprinkler heads or ceiling?

The correct answer is 18 inches because this distance is established to ensure that sprinkler systems can function effectively in case of a fire. Sprinkler heads are designed to distribute water evenly over a specific area, and any obstruction can impair their performance. If items are stored too close to the sprinkler heads, the water coverage can be ineffective, leading to compromised fire safety.

Maintaining a clearance of at least 18 inches allows for unobstructed water flow and ensures that the sprinkler can activate freely and cover the area below. This clearance requirement is typically enforced by safety regulations in order to minimize hazards in environments where storage is present. Understanding these standards is essential for maintaining proper safety protocols and ensuring that emergency systems operate as intended.