What is the maximum floor area that can be protected by a single ordinary hazard...

The maximum floor area on any one floor to be protected by sprinklers supplied by any one sprinkler system riser or combined system riser shall be as follows:

1.Light hazard — 52,000 ft2 (4830 m2)

2.Ordinary hazard — 52,000 ft2 (4830 m2)

3.* Extra hazard — Hydraulically calculated — 40,000 ft2 (3720 m2)

4.High-piled Storage — High-piled storage (as defined in 3.3.100) and storage covered by other NFPA standards — 40,000 ft2 (3720 m2)

5.In-rack Storage — 40,000 ft2 (3720 m2)