Plumbing Fixture Count

Minimum water closets, urinals, and lavatories required by occupancy type and occupant load. All values are starting points. Verify against the applicable OBC edition.

Occupancy Type

Occupant Load

persons

Override 50/50 male/female split

Based on OBC 2024 Subsection 3.7.4. Group B occupancies and dwelling units require separate analysis. Group D occupant load uses 14 m²/person (Art. 3.7.4.2.(1)). Verify against the applicable edition.