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422.1 Fixture Count
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Plumbing fixtures shall be provided for the type of building occupancy and in the minimum number shown in Table 2902.1, Minimum Number of Required Plumbing Fixtures of the 2018 International Building Code. The total occupant load and occupancy classification shall be determined in accordance with the building code. Occupancy classification not shown in Table 2902.1, Minimum Number of Required Plumbing Fixtures of the 2018 International Building Code shall be considered separately by the Authority Having Jurisdiction.
The minimum number of fixtures shall be calculated at 50 percent male and 50 percent female based on the total occupant load. Where information submitted indicates a difference in the distribution of the sexes such information shall be used to determine the number of fixtures for each sex. Once the occupancy load and occupancy are determined, Table 2902.1, Minimum Number of Required Plumbing Fixtures of the 2018 International Building Code shall be applied to determine the minimum number of plumbing fixtures required. Where applying the fixture ratios in Table 2902.1, Minimum Number of Required Plumbing Fixtures of the 2018 International Building Code results in fractional numbers, such numbers shall be rounded to the next whole number. For multiple occupancies, fractional numbers shall be first summed and then rounded to the next whole number.
[P] TABLE 2902.1
MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa (See Sections 2902.1.1 and 2902.2)
| No. | CLASSIFICATION | DESCRIPTION | WATER CLOSETS (URINALS SEE SECTION 424.2 OF THE INTERNATIONAL PLUMBING CODE) |
LAVATORIES | BATHTUBS/ SHOWERS |
DRINKING FOUNTAINS (SEE SECTION 410 OF THE INTERNATIONAL PLUMBING CODE) |
OTHER | ||
| Male | Female | Male | Female | ||||||
| 1 | Assembly | Theaters and other buildings for the performing arts and motion picturesd | 1 per 125 | 1 per 65 | 1 per 200 | — | 1 per 500 | 1 service sink | |
| Nightclubs, bars, taverns, dance halls and buildings for similar purposesd | 1 per 40 | 1 per 40 | 1 per 75 | — | 1 per 500 | 1 service sink | |||
| Restaurants, banquet halls and food courtsd | 1 per 75 | 1 per 75 | 1 per 200 | — | 1 per 500 | 1 service sink | |||
| Casino gaming areas | 1 per 100 for the first 400 and 1 per 250 for the remainder exceeding 400 | 1 per 50 for the first 400 and 1 per 150 for the remainder exceeding 400 | 1 per 250 for the first 750 and 1 per 500 for the remainder exceeding 750 | — | 1 per 1,000 | 1 service sink | |||
| Auditoriums without permanent seating, art galleries, exhibition halls, museums, lecture halls, libraries, arcades and gymnasiumsd | 1 per 125 | 1 per 65 | 1 per 200 | — | 1 per 500 | 1 service sink | |||
| Passenger terminals and transportation facilitiesd | 1 per 500 | 1 per 500 | 1 per 750 | — | 1 per 1,000 | 1 service sink | |||
| Places of worship and other religious servicesd | 1 per 150 | 1 per 75 | 1 per 200 | — | 1 per 1,000 | 1 service sink | |||
| Coliseums, arenas, skating rinks, pools and tennis courts for indoor sporting events and activities | 1 per 75 for the first 1,500 and 1 per 120 for the remainder exceeding 1,500 | 1 per 40 for the first 1,520 and 1 per 60 for the remainder exceeding 1,520 | 1 per 200 | 1 per 150 | — | 1 per 1,000 | 1 service sink | ||
| Stadiums, amusement parks, bleachers and grandstands for outdoor sporting events and activitiesf | 1 per 75 for the first 1,500 and 1 per 120 for the remainder exceeding 1,500 | 1 per 40 for the first 1,520 and 1 per 60 for the remainder exceeding 1,520 | 1 per 200 | 1 per 150 | — | 1 per 1,000 | 1 service sink | ||
| 2 | Business | Buildings for the transaction of business, professional services, other services involving merchandise, office buildings, banks, light industrial, ambulatory care and similar uses | 1 per 25 for the first 50 and 1 per 50 for the remainder exceeding 50 | 1 per 40 for the first 80 and 1 per 80 for the remainder exceeding 80 | — | 1 per 100 | 1 service sinke | ||
| 3 | Educational | Educational facilities | 1 per 50 | 1 per 50 | — | 1 per 100 | 1 service sink | ||
| 4 | Factory and industrial | Structures in which occupants are engaged in work fabricating, assembly or processing of products or materials | 1 per 100 | 1 per 100 | — | 1 per 400 | 1 service sink | ||
| 5 | Institutional | Custodial care facilities | 1 per 10 | 1 per 10 | 1 per 8 | 1 per 100 | 1 service sink | ||
| Medical care recipients in hospitals and nursing homesb | 1 per roomc | 1 per roomc | 1 per 15 | 1 per 100 | 1 service sink | ||||
| Employees in hospitals and nursing homesb | 1 per 25 | 1 per 35 | — | 1 per 100 | — | ||||
| Visitors in hospitals and nursing homes | 1 per 75 | 1 per 100 | — | 1 per 500 | — | ||||
| Prisonsb | 1 per cell | 1 per cell | 1 per 15 | 1 per 100 | 1 service sink | ||||
| Reformatories, detention centers and correctional centersb | 1 per 15 | 1 per 15 | 1 per 15 | 1 per 100 | 1 service sink | ||||
| Employees in reformitories, detention centers and correctional centersb | 1 per 25 | 1 per 35 | — | 1 per 100 | — | ||||
| Adult day care and child day care | 1 per 15 | 1 per 15 | 1 | 1 per 100 | 1 service sink | ||||
| 6 | Mercantile | Retail stores, service stations, shops, salesrooms, markets and shopping centers | 1 per 500 | 1 per 750 | — | 1 per 1,000 | 1 service sinke | ||
| 7 | Residential | Hotels, motels, boarding houses (transient) | 1 per sleeping unit | 1 per sleeping unit | 1 per sleeping unit | — | 1 service sink | ||
| Dormitories, fraternities, sororities and boarding houses (not transient) | 1 per 10 | 1 per 10 | 1 per 8 | 1 per 100 | 1 service sink | ||||
| Apartment house | 1 per dwelling unit | 1 per dwelling unit | 1 per dwelling unit | — | 1 kitchen sink per dwelling unit; 1 automatic clothes washer connection per 20 dwelling units | ||||
| One- and two-family dwellings and lodging houses with five or fewer guestrooms | 1 per dwelling unit | 1 per 10 | 1 per dwelling unit | — | 1 kitchen sink per dwelling unit; 1 automatic clothes washer connection per dwelling unit | ||||
| Congregate living facilities with 16 or fewer persons | 1 per 10 | 1 per 10 | 1 per 8 | 1 per 100 | 1 service sink | ||||
| 8 | Storage | Structures for the storage of goods, warehouses, storehouses and freight depots, low and moderate hazard | 1 per 100 | 1 per 100 | — | 1 per 1,000 | 1 service sink | ||
- The fixtures shown are based on one fixture being the minimum required for the number of persons indicated or any fraction of the number of persons indicated. The number of occupants shall be determined by this code.
- Toilet facilities for employees shall be separate from facilities for inmates or care recipients.
- A single-occupant toilet room with one water closet and one lavatory serving not more than two adjacent patient sleeping units shall be permitted, provided that each patient sleeping unit has direct access to the toilet room and provisions for privacy for the toilet room user are provided.
- The occupant load for seasonal outdoor seating and entertainment areas shall be included when determining the minimum number of facilities required.
- For business and mercantile classifications with an occupant load of 15 or fewer, a service sink shall not be required.
- The required number and type of plumbing fixtures for outdoor swimming pools shall be in accordance with Section 609 of the International Swimming Pool and Spa Code.
Where family or assisted-use toilet and bathing rooms are required, in applicable building regulations, the facilities shall be installed in accordance with those regulations.
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