Add one fixture for each additional 500 men, which brings the total to five. Women have a base of 11 for the first 400. Add one fixture for each additional 125 women, which brings the total to 21. Urinals have a base of 4 fixtures for the first 600 men. Adding one fixture for each additional 300 men, results in a total of 7 urinals.
Lavatories are equal among men and women.
Both have a base of three units for the first 750 occupants. One fixture is added for each additional 500 occupants. This results in a total of four lavatories for each sex. Drinking fountains have a base of three for the first 750 occupants. One fixture is added for each additional 500 occupants.