Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 29 - Plumbing Systems › Section 2902 - MINIMUM PLUMBING FACILITIES › Subsection 2902.1 - Minimum number of fixtures

Current through Register 1525, July 5, 2024
Plumbing fixtures shall be provided for the type of
				  occupancy and in the minimum number shown in Table 2902.1. Types of occupancies
				  not shown in Table 2902.1 shall be considered individually by the
building official
. The number of occupants shall be determined
				  by this code. Occupancy classification shall be determined in accordance with
				  Chapter 3. [P]
TABLE 2902.1 MINIMUM NUMBER OF REQUIRED PLUMBING
				  FIXTURESa (See Sections 2902.2 and 2902.3)
				  [P]
No.
CLASSIFICATION
OCCUPANCY
DESCRIPTION
WATER CLOSETS
(URINALS SEE SECTION 419.2 OF THE
INTERNATIONAL PLUMBING
							 CODE
)
LAVATORIES
BATHTUBS/
SHOWERS
DRINKING
							 FOUNTAINSe, f
(SEE SECTION 410.1 OF THE
INTERNATIONAL PLUMBING
							 CODE)
OTHER
MALE
FEMALE
MALE
FEMALE
1
Assembly
A-1d
Theaters and other buildings for the
performing arts and
motion pictures
1 per 125
1 per 65
1 per 200
-
1 per 500
1 service sink
A-2d
Nightclubs, bars,
taverns, dance halls and
							 buildings for similar purposes
1 per 40
1 per 40
1 per 75
-
1 per 500
1 service sink
Restaurants, banquet
halls and food
							 courts
1 per 75
1 per 75
1 per 200
-
1 per 500
1 service sink
A-3d
Auditoriums without permanent seating, art galleries,
							 exhibition
halls, museums, lecture halls, libraries, arcades and
							 gymnasiums
1 per 125
1 per 65
1 per 200
-
1 per 500
1 service sink
Passenger terminals and transportation facilities
1 per 500
1 per 500
1 per 750
-
1 per 1,000
1 service sink
Places of worship and other religious services
1 per 150
1 per 75
1 per 200
-
1 per 1,000
1 service sink
A-4
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
A-5
Stadiums, amusement parks, bleachers and grandstands
							 for outdoor 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
(continued)
TABLE 2902.1-continued MINIMUM NUMBER OF REQUIRED
				  PLUMBING FIXTURESa [P]
No.
CLASSIFICATION
OCCUPANCY
DESCRIPTION
WATER CLOSETS
(URINALS SEE SECTION 419.2 OF
THE
INTERNATIONAL
							 PLUMBING CODE
)
LAVATORIES
BATHTUBS/
SHOWERS
DRINKING FOUNTAINSe,
							 f
(SEE SECTION 410.1 OF
							 THE
INTERNATIONAL PLUMBING CODE)
OTHER
MALE
FEMALE
MALE
FEMALE
2
Business
B
Buildings for the transaction of business, professional
							 services, other services involving merchandise, office buildings, banks,
light industrial 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 sink
3
Educational
E
Educational facilities
1 per 50
1 per 50
-
1 per 100
1 service sink
4
Factory and industrial
F-1 and F-2
Structures in which occupants are engaged in work
							 fabricating, assembly or processing of products or materials
1 per 100
1 per 100
See Section
411 of the
International Plumbing
Code
1 per 400
1 service sink
5
Institutional
I-1
Residential care
1 per 10
1 per 10
1 per 8
1 per 100
1 service sink
I-2
Hospitals,
ambulatory nursing home
							 patientsb
1 per per roomc
1 per per roomc
1 per 15
1 per 100
1 service sink
Employees, other
than residential
							 careb
1 per 25
1 per 35
-
1 per 100
-
Visitors, other than residential care
1 per 75
1 per 100
-
1 per 500
-
I-3
Prisonsb
1 per cell
1 per cell
1 per 15
1 per 100
1 service sink
I-3
Reformatories, detention centers and correctional
							 centersb
1 per 15
1 per 15
1 per 15
1 per 100
1 service sink
Employeesb
1 per 25
1 per 35
-
1 per 100
-
I-4
Adult day care and child care
1 per 15
1 per 15
1
1 per 100
1 service sink
6
Mercantile
M
Retail stores, service stations, shops, salesrooms,
							 markets and shopping centers
1 per 500
1 per 750
-
1 per 1,000
1 service sink
7
Residential
R-1
Hotels, motels, boarding houses (transient)
1 per sleeping unit
1 per sleeping unit
1 per sleeping unit
-
1 service sink
R-2
Dormitories, fraternities, sororities and boarding
							 houses (not transient)
1 per 10
1 per 10
1 per 8
1 per 100
1 service sink
R-2
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
(continued)
TABLE 2902.1-continued MINIMUM NUMBER OF REQUIRED
				  PLUMBING FIXTURESa [P]
No.
CLASSIFICATION
OCCUPANCY
DESCRIPTION
WATER CLOSETS
(URINALS SEESECTION419.2 OF THE
INTERNATIONAL PLUMBING
							 CODE
)
LAVATORIES
BATHTUBS/
SHOWERS
DRINKING
							 FOUNTAINSe, f
(SEE SECTION 410.1 OF THE
INTERNATIONAL PLUMBING
							 CODE)
OTHER
MALE
FEMALE
MALE
FEMALE
7
Residential
R-3
Congregate living facilities with 16 or fewer
							 persons
1 per 10
1 per 10
1 per 8
1 per 100
1 service sink
R-4
Residential care/assisted living facilities
1 per 10
1 per 10
1 per 8
1 per 100
1 service sink
8
Storage
S-1
S-2
Structures for the storage of goods, warehouses,
							 storehouses and freight depots, low and moderate hazard
1 per 100
1 per 100
See Section 411 of the
International
								Plumbing
Code
1 per 1,000
1 service sink
a. 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.
b. Toilet facilities for employees shall be separate
							 from facilities for inmates or patients.
c. A single-occupant
							 toilet room with one water closet and one lavatory serving not more than two
							 adjacent patient sleeping units shall be permitted where such room is provided
							 with direct access from each patient sleeping unit and with provisions for
							 privacy.
d. The occupant load for seasonal outdoor seating and
							 entertainment areas shall be included when determining the minimum number of
							 facilities required.
e. The minimum number of
							 required drinking fountains shall comply with Table 2902.1 and Chapter 11.
f. Drinking fountains are not required for an occupant load of 15
							 or fewer.
2902.1.1
Fixture calculations.
To determine the
occupant load
of
				each sex, the total
occupant load
shall be divided in half. To
				determine the required number of fixtures, the fixture ratio or ratios for each
				fixture type shall be applied to the
occupant load
of each sex
				in accordance with Table 2902.1. Fractional numbers resulting from applying the
				fixture ratios of Table 2902.1 shall be rounded up to the next whole number.
				For calculations involving multiple occupancies, such fractional numbers for
				each occupancy shall first be summed and then rounded up to the next whole
				number. [P]
Exception:
The total
occupant
				  load
shall not be required to be divided in half where
approved
statistical data indicate a distribution of the sexes
				  of other than 50 percent of each sex.
2902.1.2
Family or assisted use toilet
				and bath fixtures.
Fixtures located within family or assisted use toilet
				and bathing rooms required by Section 1109.2.1 are permitted to be included in
				the number of required fixtures for either the male or female occupants in
				assembly and mercantile occupancies.