One sprinkler head covers approximately how many square feet?

One sprinkler head covers approximately how many square feet?

• A. 40 square ft
• B. 80 square ft
• C. 160 square ft
• D. 100 square ft

Answer: (B)

One sprinkler head covers roughly a circular area, and its size is tied to how far the spray reaches from the head. If you assume a typical effective radius of about 5 feet, the protected area is πr^2 ≈ 3.14 × 25 ≈ 78–80 square feet. That’s why 80 square feet is used as a practical rule of thumb for head coverage. Real designs can vary with sprinkler type, obstructions, and water pressure, but 80 sq ft per head is the common quick estimate.

One sprinkler head covers roughly a circular area, and its size is tied to how far the spray reaches from the head. If you assume a typical effective radius of about 5 feet, the protected area is πr^2 ≈ 3.14 × 25 ≈ 78–80 square feet. That’s why 80 square feet is used as a practical rule of thumb for head coverage. Real designs can vary with sprinkler type, obstructions, and water pressure, but 80 sq ft per head is the common quick estimate.