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T. PATTERSON: Illustrated 2006 Building Code Handbook 1811

29Plumbing Systems

Creston Elementary Multipurpose Building. Creston, California.

Phillips Metsch Sweeney Moore Architects. Santa Barbara, California.


2902 Minimum Plumbing Facilities

2902.1 Minimum number of fixtures (part 1 of 23)

• Partial lists of plumbing fixtures required for each occupancy are provided in the tables on

following pages.

• Minimum numbers of plumbing fixtures for occupancies not listed will be determined by the

building official.

• Where not indicated otherwise ≥ 1 service sink is required for all occupancies.

• In each toilet room urinals may be installed in lieu of required water closets as follows:

� For ≥ 67% of the required water closets in the following occupancies:

Assembly.

Education.

� For ≥ 1/2 of the required water closets in the all other occupancies:

• Drinking fountains are not required where restaurants serve water.

• The following may be substutited for ≤ 1/2 of required drinking fountains:

� Water coolers.

� Bottled-water dispensers.

• Occupants in seasonal outdoor use areas of the following occupancies are added to the

building occupant load in determining the number of plumbing fixtures required:

� A-1

� A-2

� A-3


Note: IBC Table 2902.1, “Minimum Number of Required Plumbing Fxtures,” is cited as

governing the number of plumbing fixtures required and is the basis of the tables

provided in this section.

Chapter 3, “Use and Occupancy Classification,” is cited as governing the

classification of occupancies.

The following sections of the International Plumbing Code are cited as governing

substitutions for certain plumbing fixtures:

IPC 419.2, “Substitution for water closets,” permits the substitution of urinals for

water closets as summarized above.

IPC 410.1, “Approval,” permits omitting drinking fountains as summarized above.

The following are cited as governing plumbing fixtures in assembly occupancies:

2902.2, “Separate facilities.”

2902.4, “Required public toilet facilities.”

2902.4.1, “Location of toilet facilities in occupancies other than covered malls.”


Table 2902.1a Occupancies A-1: Minimum Plumbing Fixtures Required

Occupant WC WC Lavs DF Occupant WC WC Lavs DFcount men women count men women

1–65 1 1 1 1 751–780 7 12 4 2 66–125 1 2 1 1 781–800 7 13 4 2 126–130 2 2 1 1 801–845 7 13 5 2 131–195 2 3 1 1 846–875 7 14 5 2 196–200 2 4 1 1 876–910 8 14 5 2 201–250 2 4 2 1 911–975 8 15 5 2 251–260 3 4 2 1 976–1000 8 16 5 2 261–325 3 5 2 1 1001–1040 9 16 6 3 326–375 3 6 2 1 1041–1105 9 17 6 3 376–390 4 6 2 1 1106–1125 9 18 6 3 391–400 4 7 2 1 1126–1170 10 18 6 3 401–455 4 7 3 1 1171–1200 10 19 6 3 456–500 4 8 3 1 1201–1235 10 19 7 3 501–520 5 8 3 2 1236–1250 10 20 7 3 521–585 5 9 3 2 1251–1300 11 20 7 3 586–600 5 10 3 2 1301–1365 11 21 7 3 601–625 5 10 4 2 1366–1375 11 22 7 3 626–650 6 10 4 2 1376–1400 12 22 7 3 651–715 6 11 4 2 1401–1430 12 22 8 3 716–750 6 12 4 2 1431–1495 12 23 8 3

Source: IBC Table 2902.1.



• The table below includes the following A-1 uses:

� Legitimate theaters.

� Other performing arts buildings.

� Movie theaters.


Table 2902.1b Occupancy A-2 Nightclubs, Bars, etc.: Minimum Plumbing Fixtures Required Occupant WC WC Lavs DF Occupant WC WC Lavs DFcount men women count men women

1–40 1 1 1 1 226–240 6 6 4 1 41–75 2 2 1 1 241–280 7 7 4 1 76–80 2 2 2 1 281–300 8 8 4 1 81–120 3 3 2 1 301–320 8 8 5 1 121–150 4 4 2 1 321–360 9 9 5 1 151–160 4 4 3 1 361–375 10 10 5 1 161–200 5 5 3 1 376–400 10 10 6 1 201–225 6 6 3 1 401–440 11 11 6 1





� Nightclubs.

� Bars.

� Taverns.

� Dance halls.

� Similar functions.


� Restaurants.

� Banquet halls.

� Food courts.


Table 2902.1c Occupancy A-2 Restaurants, etc.: Minimum Plumbing Fixtures Required Occupant WC WC Lavs DF Occupant WC WC Lavs DFcount men women count men women

1–75 1 1 1 1 376–400 6 6 2 1 76–150 2 2 1 1 401–450 6 6 3 1 151–200 3 3 1 1 451–500 7 7 3 1 201–225 3 3 2 1 501–525 7 7 3 2 226–300 4 4 2 1 526–600 8 8 3 2 301–375 5 5 2 1 601–675 9 9 4 2






� Auditoriums as follows:

No permanent seating.

� Art galleries.

� Exhibition halls.

� Museums.

� Lecture halls.

� Libraries.

� Arcades.

� Gymnasiums.


Table 2902.1d Occupancy A-3 Auditoriums, Galleries, etc.: Minimum Plumbing Fixtures Required Occupant WC WC Lavs DF Occupant WC WC Lavs DFcount men women count men women

1–65 1 1 1 1 751–780 7 12 4 2 66–125 1 2 1 1 781–800 7 13 4 2 126–130 2 2 1 1 801–845 7 13 5 2 131–195 2 3 1 1 846–875 7 14 5 2 196–200 2 4 1 1 876–910 8 14 5 2 201–250 2 4 2 1 911–975 8 15 5 2 251–260 3 4 2 1 976–1000 8 16 5 2 261–325 3 5 2 1 1001–1040 9 16 6 3 326–375 3 6 2 1 1041–1105 9 17 6 3 376–390 4 6 2 1 1106–1125 9 18 6 3 391–400 4 7 2 1 1126–1170 10 18 6 3 401–455 4 7 3 1 1171–1200 10 19 6 3 456–500 4 8 3 1 1201–1235 10 19 7 3 501–520 5 8 3 2 1236–1250 10 20 7 3 521–585 5 9 3 2 1251–1300 11 20 7 3 586–600 5 10 3 2 1301–1365 11 21 7 3 601–625 5 10 4 2 1366–1375 11 22 7 3 626–650 6 10 4 2 1376–1400 12 22 7 3 651–715 6 11 4 2 1401–1430 12 22 8 3 716–750 6 12 4 2 1431–1495 12 23 8 3



Table 2902.1e Occupancy A-3 Transportation Facilities: Minimum Fixtures Required Occupant WC Lavs DF Occupant WC Lavs DF count count 1–500 1 1 1 7,501–8,000 16 11 8 501–750 2 1 1 8,001–8,250 17 11 9 751–1,000 2 2 1 8,251–8,500 17 12 9 1,001–1,500 3 2 2 8,501–9,000 18 12 9 1,501–2,000 4 3 2 9,001–9,500 19 13 10 2,001–2,250 5 3 3 9,501–9,750 20 13 10 2,251–2,500 5 4 3 9,751–10,000 20 14 10 2,501–3,000 6 4 3 10,001–10,500 21 14 11 3,001–3,500 7 5 4 10,501–11,000 22 15 11 3,501–3,750 8 5 4 11,001–11,250 23 15 12 3,751–4,000 8 6 4 11,251–11,500 23 16 12 4,001–4,500 9 6 5 11,501–12,000 24 16 12 4,501–5,000 10 7 5 12,001–12,500 25 17 13 5,001–5,250 11 7 6 12,501–12,750 26 17 13 5,251–5,500 11 8 6 12,751–13,000 26 18 13 5,501–6,000 12 8 6 13,001–13,500 27 18 14 6,001–6,500 13 9 7 13,501–14,000 28 19 14 6,501–6,750 14 9 7 14,001–14,250 29 19 15 6,751–7,000 14 10 7 14,251–14,500 29 20 15 7,001–7,500 15 10 8 14,500–15,000 30 20 15





� Passenger terminals.

� Transportation facilities.


Table 2902.1f Occupancy A-3, Places of Worship: Minimum Plumbing Fixtures Required Occupant WC WC Lavs DF Occupant WC WC Lavs DFcount men women count men women

1–75 1 1 1 1 451–525 4 7 3 1 76–150 1 2 1 1 526–600 4 8 3 1 151–200 2 3 1 1 601–675 5 9 4 1 201–225 2 3 2 1 676–750 5 10 4 1 226–300 2 4 2 1 751–800 6 11 4 1 301–375 3 5 2 1 801–825 6 11 5 1 376–400 3 6 2 1 826–900 6 12 5 1 401–450 3 6 3 1 901–975 7 13 5 1





� Places of worship.

� Other religious services.





� Coliseums.

� Arenas.

� Skating rinks.

� The following functions for indnoor sporting events and activities:

Swimming pools.

Tennis courts.


Occupancy A-4 Coliseums, Arenas, etc.Table 2902.1g 1–1500 Seats: Minimum Plumbing Fixtures Required Occupant WC WC Lavs Lavs DF Occupant WC WC Lavs Lavs DF count men women men women count men women men women 1–40 1 1 1 1 1 751–760 11 19 4 6 1 41–75 1 2 1 1 1 761–800 11 20 4 6 1 76–80 2 2 1 1 1 801–825 11 21 5 6 1 81–120 2 3 1 1 1 826–840 12 21 5 6 1

221–150 2 4 1 1 1 841–880 12 22 5 6 1151–160 3 4 1 2 1 881–900 12 23 5 6 1161–200 3 5 1 2 1 901–920 13 23 5 7 1201–225 3 6 2 2 1 921–960 13 24 5 7 1

226–240 4 6 2 2 1 961–975 13 25 5 7 1241–280 4 7 2 2 1 976–1000 14 25 5 7 1281–300 4 8 2 2 1 1001–1040 14 26 6 7 2301–320 5 8 2 3 1 1041–1050 14 27 6 7 2

321–360 5 9 2 3 1 1051–1080 15 27 6 8 2361–375 5 10 2 3 1 1081–1120 16 28 6 8 2376–400 6 10 2 3 1 1121–1160 16 29 6 8 2401–440 6 11 3 3 1 1161–1200 16 30 6 8 2

441–450 6 12 3 3 1 1201–1240 17 31 7 9 2451–480 7 12 3 4 1 1241–1275 17 32 7 9 2481–520 7 13 3 4 1 1276–1280 18 32 7 9 2521–525 7 14 3 4 1 1281–1320 18 33 7 9 2

526–560 8 14 3 4 1 1321–1350 18 34 7 9 2561–600 8 15 3 4 1 1351–1360 19 34 7 10 2601–640 9 16 4 5 1 1361–1400 19 35 7 10 2

641–675 9 17 4 5 1 1401–1425 19 36 8 10 2676–680 10 17 4 5 1 1426–1440 20 36 8 10 2681–720 10 18 4 5 1 1441–1480 20 37 8 10 2

721–750 10 19 4 5 1 1481–1500 20 38 8 10 2 Source: IBC Table 2902.1.


Occupancy A-4 Coliseums, Arenas, etc.Table 2902.1h 1501–4600 Seats: Minimum Plumbing Fixtures Required Occupant WC WC Lavs Lavs DF Occupant WC WC Lavs Lavs DF count men women men women count men women men women

1501–1560 21 39 8 11 2 3061–3120 34 65 16 21 41561–1600 21 40 8 11 2 3121–3150 34 66 16 21 41601–1620 21 40 9 11 2 3151–3180 34 66 16 22 41621–1650 22 41 9 11 2 3181–3200 35 67 16 22 4

1651–1680 22 41 9 12 2 3201–3240 35 67 17 22 41681–1740 22 42 9 12 2 3241–3300 35 68 17 22 41741–1800 23 43 9 12 2 3301–3360 36 69 17 23 41801–1860 23 44 10 13 2 3361–3400 36 70 17 23 4

1861–1920 24 45 10 13 2 3401–3420 36 70 18 23 41921–1950 24 46 10 13 2 3421–3450 37 71 18 23 41951–1980 24 46 10 14 2 3451–3480 37 71 18 24 41981–2000 25 47 10 14 2 3481–3540 37 72 18 24 4

2001–2040 25 47 11 14 3 3541–3600 38 73 18 24 42041–2100 25 48 11 14 3 3601–3660 38 74 19 25 42101–2160 26 49 11 15 3 3661–3720 39 75 19 25 42161–2200 26 50 11 15 3 3721–3750 39 76 19 25 4

2201–2250 26 50 12 15 3 3751–3780 39 76 19 26 42251–2220 26 50 12 16 3 3781–3800 40 77 19 26 42221–2280 27 51 12 16 3 3801–3840 40 77 20 26 42281–2340 27 52 12 16 3 3841–3900 40 78 20 26 4

2341–2400 28 53 12 16 3 3901–3960 41 79 20 27 42401–2460 28 54 13 17 3 3961–4000 41 80 20 27 42461–2540 29 55 13 17 3 4001–4020 41 80 21 27 52541–2550 29 56 13 17 3 4021–4050 42 81 21 27 5

2551–2580 29 56 13 18 3 4051–4080 42 81 21 28 52581–2600 30 57 13 18 3 4081–4140 42 82 21 28 52601–2640 30 57 14 18 3 4141–4200 43 83 21 28 52641–2700 30 58 14 18 3 4201–4260 43 84 22 29 5

2701–2760 31 59 14 19 3 4261–4320 44 85 22 29 52761–2800 31 60 14 19 3 4321–4350 44 86 22 29 52801–2820 31 60 15 19 3 4351–4380 44 86 22 30 52821–2850 32 61 15 19 3 4381–4400 45 87 22 30 5

2851–2880 32 61 15 20 3 4401–4440 45 87 23 30 52881–2940 32 62 15 20 3 4441–4500 45 88 23 30 52941–3000 33 63 15 20 3 4501–4560 46 89 23 31 53001–3060 33 64 16 21 4 4561–4600 46 90 23 31 5




• Occupancy A-4 Table 2902.1 xx continued:





� Stadiums.

� Amusement parks.

� Grandstands for the following:

Outdoor sporting events.

Outdoor activities.


OccupancyA-5 Stadiums, Amusement Parks, etc.Table 2902.1i 1–1500 Seats: Minimum Plumbing Fixtures Required Occupant WC WC Lavs Lavs DF Occupant WC WC Lavs Lavs DF count men women men women count men women men women 1–40 1 1 1 1 1 751–760 11 19 4 6 1 41–75 1 2 1 1 1 761–800 11 20 4 6 1 76–80 2 2 1 1 1 801–825 11 21 5 6 1 81–120 2 3 1 1 1 826–840 12 21 5 6 1

221–150 2 4 1 1 1 841–880 12 22 5 6 1151–160 3 4 1 2 1 881–900 12 23 5 6 1161–200 3 5 1 2 1 901–920 13 23 5 7 1201–225 3 6 2 2 1 921–960 13 24 5 7 1

226–240 4 6 2 2 1 961–975 13 25 5 7 1241–280 4 7 2 2 1 976–1000 14 25 5 7 1281–300 4 8 2 2 1 1001–1040 14 26 6 7 2301–320 5 8 2 3 1 1041–1050 14 27 6 7 2

321–360 5 9 2 3 1 1051–1080 15 27 6 8 2361–375 5 10 2 3 1 1081–1120 16 28 6 8 2376–400 6 10 2 3 1 1121–1160 16 29 6 8 2401–440 6 11 3 3 1 1161–1200 16 30 6 8 2

441–450 6 12 3 3 1 1201–1240 17 31 7 9 2451–480 7 12 3 4 1 1241–1275 17 32 7 9 2481–520 7 13 3 4 1 1276–1280 18 32 7 9 2521–525 7 14 3 4 1 1281–1320 18 33 7 9 2

526–560 8 14 3 4 1 1321–1350 18 34 7 9 2561–600 8 15 3 4 1 1351–1360 19 34 7 10 2601–640 9 16 4 5 1 1361–1400 19 35 7 10 2

641–675 9 17 4 5 1 1401–1425 19 36 8 10 2676–680 10 17 4 5 1 1426–1440 20 36 8 10 2681–720 10 18 4 5 1 1441–1480 20 37 8 10 2

721–750 10 19 4 5 1 1481–1500 20 38 8 10 2 Source: IBC Table 2902.1.


OccupancyA-5 Stadiums, Amusement Parks, etc.Table 2902.1j 1501–4600 Seats: Minimum Plumbing Fixtures Required Occupant WC WC Lavs Lavs DF Occupant WC WC Lavs Lavs DF count men women men women count men women men women

1501–1560 21 39 8 11 2 3061–3120 34 65 16 21 41561–1600 21 40 8 11 2 3121–3150 34 66 16 21 41601–1620 21 40 9 11 2 3151–3180 34 66 16 22 41621–1650 22 41 9 11 2 3181–3200 35 67 16 22 4

1651–1680 22 41 9 12 2 3201–3240 35 67 17 22 41681–1740 22 42 9 12 2 3241–3300 35 68 17 22 41741–1800 23 43 9 12 2 3301–3360 36 69 17 23 41801–1860 23 44 10 13 2 3361–3400 36 70 17 23 4

1861–1920 24 45 10 13 2 3401–3420 36 70 18 23 41921–1950 24 46 10 13 2 3421–3450 37 71 18 23 41951–1980 24 46 10 14 2 3451–3480 37 71 18 24 41981–2000 25 47 10 14 2 3481–3540 37 72 18 24 4

2001–2040 25 47 11 14 3 3541–3600 38 73 18 24 42041–2100 25 48 11 14 3 3601–3660 38 74 19 25 42101–2160 26 49 11 15 3 3661–3720 39 75 19 25 42161–2200 26 50 11 15 3 3721–3750 39 76 19 25 4

2201–2250 26 50 12 15 3 3751–3780 39 76 19 26 42251–2220 26 50 12 16 3 3781–3800 40 77 19 26 42221–2280 27 51 12 16 3 3801–3840 40 77 20 26 42281–2340 27 52 12 16 3 3841–3900 40 78 20 26 4

2341–2400 28 53 12 16 3 3901–3960 41 79 20 27 42401–2460 28 54 13 17 3 3961–4000 41 80 20 27 42461–2540 29 55 13 17 3 4001–4020 41 80 21 27 52541–2550 29 56 13 17 3 4021–4050 42 81 21 27 5

2551–2580 29 56 13 18 3 4051–4080 42 81 21 28 52581–2600 30 57 13 18 3 4081–4140 42 82 21 28 52601–2640 30 57 14 18 3 4141–4200 43 83 21 28 52641–2700 30 58 14 18 3 4201–4260 43 84 22 29 5

2701–2760 31 59 14 19 3 4261–4320 44 85 22 29 52761–2800 31 60 14 19 3 4321–4350 44 86 22 29 52801–2820 31 60 15 19 3 4351–4380 44 86 22 30 52821–2850 32 61 15 19 3 4381–4400 45 87 22 30 5

2851–2880 32 61 15 20 3 4401–4440 45 87 23 30 52881–2940 32 62 15 20 3 4441–4500 45 88 23 30 52941–3000 33 63 15 20 3 4501–4560 46 89 23 31 53001–3060 33 64 16 21 4 4561–4600 46 90 23 31 5




• Occupancy A-5 Table 2902.1 xx continued:




• Occupancy B required plumbing fixtures are shown in the partial table below as follows:

� Buildlings for the following purposes are included:

For transacting business.

For providing professional services.

For providing other services involving merchandise.

Office building functions.

Banking.

Light industrial activity.

Note: The following are cited as governing plumbing fixtures in Occupancy B.





Case study: Fig. 2902.1. The kitchen’s 56 occupants fall within the 51–80 range listed in the

handbook Table 2902.1k for business occupancies. This range requires 3 water closets and 2

lavatories as provided in the toilet rooms. In addition, 2 sinks are provided in the work area; 1 is

provided in the lunchroom. This complies with the code.

Table 2902.1k Occupancy B Business: Minimum Plumbing Fixtures Required

Occupant WC Lavs DF Occupant WC Lavs DF count count

1–25 1 1 1 351–400 9 6 4 26–40 2 1 1 401–450 10 7 5 41–50 2 2 1 451–480 11 7 5 51–80 3 2 1 481–500 11 8 5

81–100 3 3 1 501–550 12 8 6 101–150 4 3 2 551–560 13 8 6 151–160 5 3 2 561–600 13 9 6 161–200 5 4 2 601–640 14 9 7 201–240 6 4 3 641–650 14 10 7

241–250 6 5 3 651–700 15 10 7 251–300 7 5 3 701–720 16 10 8 301–320 8 5 4 721–750 16 11 8 321–350 8 6 4 751–800 17 11 8



Fig. 2902.1 Floor plan. Central Kitchen. Lompoc Unified School District. Lompoc, California.

Phillips Metsch Sweeney Moore, Architects. Santa Barbara, California.

DISHWASHING

JAN

CLASSROOM, STAFF LUNCHROOM

3 WC

2 SINKS

PACKAGING and PRODUCTION

MEAT PREP

VEGETABLE PREP

REFRIGERATOR

FREEZER

RECEIVING

STORAGE STORAGE

MECH OFF

REFRIGERATOR

FREEZER

FREEZER

SINK

SINK

•

•• •

• • •


Table 2902.1l Occupancy E Educational: Minimum Plumbing Fixtures Required Occupant WC Lavs DF Occupant WC Lavs DF count count 1–50 1 1 1 1001–1050 21 21 11 51–100 2 2 1 1051–1100 22 22 11 101–150 3 3 2 1101–1150 23 23 12 151–200 4 4 2 1151–1200 24 24 12 201–250 5 5 3 1201–1250 25 25 13 251–300 6 6 3 1251–1300 26 26 13 301–350 7 7 4 1301–1350 27 27 14 351–400 8 8 4 1351–1400 28 28 14 401–450 9 9 5 1401–1450 29 29 15 451–500 10 10 5 1451–1500 30 30 15 501–550 11 11 6 1501–1550 31 31 16 551–600 12 12 6 1551–1600 32 32 16 601–650 13 13 7 1601–1650 33 33 17 651–700 14 14 7 1651–1700 34 34 17 701–750 15 15 8 1701–1750 35 35 18 751–800 16 16 8 1751–1800 36 36 18

801–850 17 17 9 1801–1850 37 37 19 851–900 18 18 9 1851–1900 38 38 19 901–950 19 19 10 1901–1950 39 39 20 951–1000 20 20 10 1951–2000 40 40 20




• Occupancy E required plumbing fixtures are shown in the table below.




• Factory and industrial occupancies require the following facilities, where required by the

manufacturer, and other fixtures as shown in the partial table below:

� Emergency eyewash stations.

� Emergency showers.

• Functions included in the F-1 and F-2 tables are as follows:

� Fabrication.

� Assembly of products.

� Assembly of materials.

� Processing of products.

� Processing of materials.

Occupancies F-1 and F-2 Factory and Industrial: Table 2902.1m Minimum Plumbing Fixtures Required Occupant WC Lavs DF Occupant WC Lavs DF count count 1–100 1 1 1 801–900 9 9 3 101–200 2 2 1 901–1000 10 10 3 201–300 3 3 1 1001–1100 11 11 3 301–400 4 4 1 1101–1200 12 12 3 401–500 5 5 2 1201–1300 13 13 4 501–600 6 6 2 1301–1400 14 14 4 601–700 7 7 2 1401–1500 15 15 4 701–800 8 8 2 1501–1600 16 16 4



Table 2902.1n Occupancy I-1 Residential Care: Minimum Plumbing Fixtures Required Occupant WC Lavs Bathtub/ DF Occupant WC Lavs Bathtub/ DF count shower count shower 1–8 1 1 1 1 41–48 5 5 6 1 9–10 1 1 2 1 49–50 5 5 7 1 11–16 2 2 2 1 51–56 6 6 7 1 17–20 2 2 3 1 57–60 6 6 8 1 21–24 3 3 3 1 61–64 7 7 8 1 25–30 3 3 4 1 65–70 7 7 9 1 31–32 4 4 4 1 71–72 8 8 9 1 33–40 4 4 5 1 73–80 8 8 10 1


• Plumbing fixtures for I-1 residential care are shown in the table below.


Occupancy I-2 Hospitals, Ambulatory Nursing Homes: Table 2902.1o Minimum Fixtures Required for Patients Patient Bathtub/ DF Patient Bathtub/ DF Patient Bathtub/ DF count shower count shower count shower

1–15 1 1 166–180 12 2 331–345 23 4 16–30 2 1 181–195 13 2 346–360 24 4 31–45 3 1 196–200 14 2 361–375 25 4 46–60 4 1 201–210 14 3 376–390 26 4 61–75 5 1 211–225 15 3 391–400 27 4 76–90 6 1 226–240 16 3 401–405 27 5 91–100 7 1 241–255 17 3 406–420 28 5 101–105 7 2 256–270 18 3 421–435 29 5 106–120 8 2 271–285 19 3 436–450 30 5 121–135 9 2 286–300 20 3 451–465 31 5 136–150 10 2 301–315 21 4 466–480 32 5 151–165 11 2 316–330 22 4 481–495 33 5




• Fixtures for patients in occupancy I-2 hospitals and ambulatory nursing homes are governed

as follows:

� 1 toilet room may serve 2 adjacent rooms where all of the following conditions apply:

Toilet has 1 lavatory and 1 water closet.

Toilet is directly accessed from each room with provisions for privacy.

� Otherwise, the following is required for each patient room:

1 water closet and 1 lavatory.

� 1 service sink is required for each floor.

� Other fixtures are required as shown in the following table:


Occupancy I Institutional Employees Other Than Residential Care: Table 2902.1p Minimum Fixtures Required for Employees

Employee WC Lavs DF Employee WC Lavs DF count count

1–25 1 1 1 126–140 6 4 2 26–35 2 1 1 141–150 6 5 2 36–50 2 2 1 151–175 7 5 2 51–70 3 2 1 176–200 8 6 2 71–75 2 2 1 201–210 9 6 3 76–100 4 3 1 211–225 9 7 3 101–105 5 3 2 226–245 10 7 3 106–125 5 4 2 246–250 10 8 3


• Fixtures for institutional employees other than residential care are governed as follows:

� Employee toilets are separate from patient toilets.

� Fixture requirements are as shown in the partial table below:




• Fixtures for institutional visitors other than residential care are governed as follows:

� A service sink is not required to serve visitors.

� Bathing facilities are not required for visitors.

� Otherwise, fixture requirements are as shown in the partial table below:

Occupancy I Institutional Visitors Other Than Residential Care: Table 2902.1q Minimum Plumbing Fixtures Required for Vistors

Visitor WC Lavs DF Visitor WC Lavs DF count count 1–75 1 1 1 201–225 3 3 1 76–100 2 1 1 226–300 4 3 1 101–150 2 2 1 301–375 5 4 1 151–200 3 2 1 376–400 6 4 1



Table 2902.1r Occupancy I-3 Prisons: Minimum Fixtures Required for Inmates

Inmate Bathtub/ DF Inmate Bathtub/ DF Inmate Bathtub/ DF count shower count shower count shower

1–15 1 1 211–225 15 3 436–450 30 5 16–30 2 1 226–240 16 3 451–465 31 5 31–45 3 1 241–255 17 3 466–480 32 5 46–60 4 1 256–270 18 3 481–495 33 5 61–75 5 1 271–285 19 3 496–500 34 5 76–90 6 1 286–300 20 3 501–510 34 6 91–100 7 1 301–315 21 4 511–525 35 6 101–105 7 2 316–330 22 4 526–540 36 6 106–120 8 2 331–345 23 4 541–555 37 6 121–135 9 2 346–360 24 4 556–570 38 6 136–150 10 2 361–375 25 4 571–585 39 6 151–165 11 2 376–390 26 4 586–600 40 6 166–180 12 2 391–400 27 4 601–615 41 7 181–195 13 2 401–405 27 5 616–630 42 7 196–200 14 2 406–420 28 5 631–645 43 7 201–210 14 3 421–435 29 5 646–660 44 7


• Fixtures for inmates of prisons are governed as follows:

� Employee toilets are separate from inmate toilets and are not governed by guidelines for

inmates or the table below.

� 1 water closet for each cell.

� 1 lavatory for each cell.

� Other fixtures are required as shown in the partial table below:


Occupancy I-3 Detention Centers, etc.:Table 2902.1s Minimum Plumbing Fixtures Required for Inmates

Inmate WC Lavs Bathtub/ DF Inmate WC Lavs Bathtub/ DFcount shower count shower

1–15 1 1 1 1 106–120 8 8 8 2 16–30 2 2 2 1 121–135 9 9 9 2 31–45 3 3 3 1 136–150 10 10 10 2 46–60 4 4 4 1 151–165 11 11 11 2 61–75 5 5 5 1 166–180 12 12 12 2 76–90 6 6 6 1 181–195 13 13 13 2 91–100 7 7 7 1 196–200 14 14 14 2 101–105 7 7 7 2 201–210 14 14 14 3




• Fixtures for inmates of the following I-3 occupancies the following are governed as indicated

below and as listed in the following table:

� Occupancies:

Reformatories.

Detention and correctional centers.

� Employee toilets are separate from inmate toilets and are not governed here.

� Otherwise, fixture requirements are as shown in the partial table below.

• The following I-3 table in cludes the following functions:

� Reformatories.

� Detention centers.

� Correction centers.


Occupancy I-4, Adult Day Care and Child Care: Table 2902.1t Minimum Plumbing Fixtures Required for Patients

Patient WC Lavs DF Patient WC Lavs DFcount count

1–15 1 1 1 106–120 8 8 2 16–30 2 2 1 121–135 9 9 2 31–45 3 3 1 136–150 10 10 2 46–60 4 4 1 151–165 11 11 2 61–75 5 5 1 166–180 12 12 2 76–90 6 6 1 181–195 13 13 2 91–100 7 7 1 196–200 14 14 2 101–105 7 7 2 201–210 14 14 3


• Occupancy I-4 required plumbing fixtures are shown in the table below.


Table 2902.1u Occupancy M Mercantile: Minimum Plumbing Fixtures Required

Occupant WC Lavs DF Occupant WC Lavs DF count count

1–500 1 1 1 1501–2000 4 3 2 501–750 2 1 1 2001–2250 5 3 3 751–1000 2 2 1 2251–2500 5 4 3 1001–1500 3 2 2 2501–3000 6 4 3


• The following R-1 occupancies are governed as indicated below:

� Occupancies:

Hotels.

Motels.

Transient borading houses.

� Requirements:

The following fixtures are required in each sleeping unit:



• Occupancy M required plumbing fixtures are shown in the table below:

Note: The following are cited as governing the plumbing fixtures in Occupancy M:




2902.4.2, “Location of toilet facilities in covered malls.


1 water closet.

1 lavatory.

1 bathtub/shower.


Occupancy R-2 Dorms, Fraternities, Sororities, Nontransient Boarding Houses.Table 2902.1v 1–360 Occupants: Minimum Plumbing Fixtures Required

Occupant WC Lavs Bathtub/ DF Occupant WC Lavs Bathtub/ DFcount shower count shower

1–8 1 1 1 1 181–184 19 19 23 2 9–10 1 1 2 1 185–190 19 19 24 2 11–16 2 2 2 1 191–192 20 20 24 2 17–20 2 2 3 1 193–200 20 20 25 2 21–24 3 3 3 1 201–208 21 21 26 3 25–30 3 3 4 1 209–210 21 21 27 3 31–32 4 4 4 1 211–216 22 22 27 3 33–40 4 4 5 1 217–220 22 22 28 3 41–48 5 5 6 1 221–224 23 23 28 3 49–50 5 5 7 1 225–230 23 23 29 3 51–56 6 6 7 1 231–232 24 24 29 3 57–60 6 6 8 1 233–240 24 24 30 3 61–64 7 7 8 1 241–248 25 25 31 3 65–70 7 7 9 1 249–250 25 25 32 3 71–72 8 8 9 1 251–256 26 26 32 3 73–80 8 8 10 1 257–260 26 26 33 3 81–88 9 9 11 1 261–264 27 27 33 3 89–90 9 9 12 1 265–270 27 27 34 3 91–96 10 10 12 1 271–272 28 28 34 3 97–100 10 10 13 1 273–280 28 28 35 3 101–104 11 11 13 2 281–288 29 29 36 3 105–110 11 11 14 2 289–290 29 29 37 3 111–112 12 12 14 2 291–296 30 30 37 3 113–120 12 12 15 2 297–300 30 30 38 3 121–128 13 13 16 2 301–304 31 31 38 4 129–130 13 13 17 2 305–310 31 31 39 4 131–136 14 14 17 2 311–312 32 32 39 4 137–140 14 14 18 2 313–320 32 32 40 4 141–144 15 15 18 2 321–328 33 33 41 4 145–150 15 15 19 2 329–330 33 33 42 4 151–152 16 16 19 2 331–336 34 34 42 4 153–160 16 16 20 2 337–340 34 34 43 4 161–168 17 17 21 2 341–344 35 35 43 4 169–170 17 17 22 2 345–350 35 35 44 4 171–176 18 18 22 2 351–352 36 36 44 4 177–180 18 18 23 2 353–360 36 36 45 4




• The beginning of R-2 Table 2902.1xx is shown below:


Occupancy R-2 Dorms, Fraternities, Sororities, Nontransient Boarding Houses.Table 2902.1w 361–720 Occupants: Minimum Plumbing Fixtures Required


361–368 37 37 46 4 541–544 55 55 68 6 369–370 37 37 47 4 545–550 55 55 69 6 371–376 38 38 47 4 551–552 56 56 69 6 377–380 38 38 48 4 553–560 56 56 70 6 381–384 39 39 48 4 561–568 57 57 71 6 385–390 39 39 49 4 569–570 57 7 72 6 391–392 40 40 49 4 571–576 58 58 72 6 393–400 40 40 50 4 577–580 58 58 73 6 401–408 41 41 51 5 581–584 59 59 73 6 409–410 41 41 52 5 585–590 59 59 74 6 411–416 42 42 52 5 591–592 60 60 74 6 417–420 42 42 53 5 593–600 60 60 75 6 421–424 43 43 53 5 601–608 61 61 76 7 425–430 43 43 54 5 609–610 61 61 77 7 431–432 44 44 54 5 611–616 62 62 77 7 433–440 44 44 55 5 617–620 62 62 78 7 441–448 45 45 56 5 621–624 63 63 78 7 449–450 45 45 57 5 625–630 63 63 79 7 451–456 46 46 57 5 631–632 64 64 79 7 457–460 46 46 58 5 633–640 64 64 80 7 461–464 47 47 58 5 641–648 65 65 81 7 465–470 47 47 59 5 649–650 65 65 82 7 471–472 48 48 59 5 651–656 66 66 82 7 473–480 48 84 60 5 657–660 66 66 83 7 481–488 49 49 61 5 661–664 67 67 83 7 489–490 49 49 62 5 665–670 67 67 84 7 491–496 50 50 62 5 671–672 68 68 84 7 497–500 50 50 63 5 673–680 68 68 85 7 501–504 51 51 63 6 681–688 69 69 86 7 505–510 51 51 64 6 689–690 69 69 87 7 511–512 52 52 64 6 691–696 70 70 87 7 513–520 52 52 65 6 697–700 70 70 88 7 521–528 53 53 66 6 701–704 71 71 88 8 529–530 53 53 67 6 705–710 71 71 89 8 531–536 54 54 67 6 711–712 72 72 89 8 537–540 54 54 68 6 713–720 72 72 90 8




• The conclusion of R-2 Table 2902.1xx is shown below:




• R-2 apartment houses require the following plumbing fixtures in each dwelling unit:

� 1 water closet.

� 1 lavatory.

� 1 bathtub/shower.

� 1 kitchen sink.

• Drinking fountains are not required.

• A service sink is not required.

• Automatic clothes washer connections as indicated in the following table:

Occupancy R-2 Apartment Houses:Table 2902.1x Minimum Automatic Clothes Washer Connections Required

Dwelling Connections Dwelling Connections Dwelling Connectionsunit count required unit count required unit count required

20 1 220 9 320 17 30 2 230 10 330 18 40 3 240 11 340 19 50 4 250 12 350 20 60 5 260 13 360 21 80 6 280 14 380 22 90 7 290 15 390 23 100 8 300 16 400 24


• R-3 1- and 2-family dwellings require the following plumbing fixtures in each dwelling unit:

� 1 water closet.

� 1 lavatory.

� 1 bathtub/shower.


� 1 kitchen sink.

� 1 automatic clothes washer connection.


Occupancy R-4 Residential Care/Assisted Living Facilities.Table 2902.1y 1–360 Occupants: Minimum Plumbing Fixtures Required


1–8 1 1 1 1 181–184 19 19 23 2 9–10 1 1 2 1 185–190 19 19 24 2 11–16 2 2 2 1 191–192 20 20 24 2 17–20 2 2 3 1 193–200 20 20 25 2 21–24 3 3 3 1 201–208 21 21 26 3 25–30 3 3 4 1 209–210 21 21 27 3 31–32 4 4 4 1 211–216 22 22 27 3 33–40 4 4 5 1 217–220 22 22 28 3 41–48 5 5 6 1 221–224 23 23 28 3 49–50 5 5 7 1 225–230 23 23 29 3 51–56 6 6 7 1 231–232 24 24 29 3 57–60 6 6 8 1 233–240 24 24 30 3 61–64 7 7 8 1 241–248 25 25 31 3 65–70 7 7 9 1 249–250 25 25 32 3 71–72 8 8 9 1 251–256 26 26 32 3 73–80 8 8 10 1 257–260 26 26 33 3 81–88 9 9 11 1 261–264 27 27 33 3 89–90 9 9 12 1 265–270 27 27 34 3 91–96 10 10 12 1 271–272 28 28 34 3 97–100 10 10 13 1 273–280 28 28 35 3 101–104 11 11 13 2 281–288 29 29 36 3 105–110 11 11 14 2 289–290 29 29 37 3 111–112 12 12 14 2 291–296 30 30 37 3 113–120 12 12 15 2 297–300 30 30 38 3 121–128 13 13 16 2 301–304 31 31 38 4 129–130 13 13 17 2 305–310 31 31 39 4 131–136 14 14 17 2 311–312 32 32 39 4 137–140 14 14 18 2 313–320 32 32 40 4 141–144 15 15 18 2 321–328 33 33 41 4 145–150 15 15 19 2 329–330 33 33 42 4 151–152 16 16 19 2 331–336 34 34 42 4 153–160 16 16 20 2 337–340 34 34 43 4 161–168 17 17 21 2 341–344 35 35 43 4 169–170 17 17 22 2 345–350 35 35 44 4 171–176 18 18 22 2 351–352 36 36 44 4 177–180 18 18 23 2 353–360 36 36 45 4




• The beginning of R-4 Table 2902.1xx is shown below:


Occupancy R-4 Residential Care/Assisted Living Facilities.Table 2902.1z 361–720 Occupants: Minimum Plumbing Fixtures Required


361–368 37 37 46 4 541–544 55 55 68 6 369–370 37 37 47 4 545–550 55 55 69 6 371–376 38 38 47 4 551–552 56 56 69 6 377–380 38 38 48 4 553–560 56 56 70 6 381–384 39 39 48 4 561–568 57 57 71 6 385–390 39 39 49 4 569–570 57 7 72 6 391–392 40 40 49 4 571–576 58 58 72 6 393–400 40 40 50 4 577–580 58 58 73 6 401–408 41 41 51 5 581–584 59 59 73 6 409–410 41 41 52 5 585–590 59 59 74 6 411–416 42 42 52 5 591–592 60 60 74 6 417–420 42 42 53 5 593–600 60 60 75 6 421–424 43 43 53 5 601–608 61 61 76 7 425–430 43 43 54 5 609–610 61 61 77 7 431–432 44 44 54 5 611–616 62 62 77 7 433–440 44 44 55 5 617–620 62 62 78 7 441–448 45 45 56 5 621–624 63 63 78 7 449–450 45 45 57 5 625–630 63 63 79 7 451–456 46 46 57 5 631–632 64 64 79 7 457–460 46 46 58 5 633–640 64 64 80 7 461–464 47 47 58 5 641–648 65 65 81 7 465–470 47 47 59 5 649–650 65 65 82 7 471–472 48 48 59 5 651–656 66 66 82 7 473–480 48 84 60 5 657–660 66 66 83 7 481–488 49 49 61 5 661–664 67 67 83 7 489–490 49 49 62 5 665–670 67 67 84 7 491–496 50 50 62 5 671–672 68 68 84 7 497–500 50 50 63 5 673–680 68 68 85 7 501–504 51 51 63 6 681–688 69 69 86 7 505–510 51 51 64 6 689–690 69 69 87 7 511–512 52 52 64 6 691–696 70 70 87 7 513–520 52 52 65 6 697–700 70 70 88 7 521–528 53 53 66 6 701–704 71 71 88 8 529–530 53 53 67 6 705–710 71 71 89 8 531–536 54 54 67 6 711–712 72 72 89 8 537–540 54 54 68 6 713–720 72 72 90 8




• The conclusion of R-4 Table 2902.1xx is shown below:




• The following S-1 and S-2 occupancies are governed as indicated below:

� Occupancies:

Storage of goods.

Warehouses.

Storehouses.

Freight depots.

Moderate-hazard storage.

� Requirements:

The following must be provided where required by the function of the occupancy:

Emergency eyewash stations.

Emergency showers.

S-1 and S-2 required plumbing fixtures are shown in the partial table below.

Note: The following are cited as governing plumbing fixtures for S occupancies:




The following section of the International Plumbing Code:

Section 411, “Emergency Showers and Eyewash Stations.”


Table 2902.1zz Occupancy S-1 and S-2 Storage: Minimum Plumbing Fixtures Required

Occupant WC Lavs DF Occupant WC Lavs DF count count 1–100 1 1 1 301–400 4 4 1 101–200 2 2 1 401–500 5 5 1 201–300 3 3 1 501–600 6 6 1




2902.2 Separate facilities

• Separate sex toilet facilities are not required for the following cases:

� Dwelling units

� Sleeping units

� For occupancies with ≤ 15 employees.

� In buildings or tenant spaces where occupant load is ≤ 15 including both of the following:

Employees.

Customers.

� In mercantile occupancies as follows:

With ≤ 50 occupants.

• Otherwise, where toilet fixtures are required, separate sex facilities must be provided.

2902.3 Number of occupants of each sex

• Where not specified otherwise, distribution of the following facilities must be as indicated

below:

� Facilities:

Water closets.

Lavatories.

Showers or bathtubs.

� Distribution:

Facilities must be distributed between sexes in one of the following ways:


Equally.

According to anticipated distribution of the sexes in the occupant load as follows:

Supporting statistical data is required.

Must be approved by the building official.

2902.4 Required public toilet facilities

• The following people must be provided public toilet facilities in the locations listed below:

� People:

Customers.

Patrons.

Visitors.

� Locations:

Public buildings.

Public tenant spaces.

• The accessible route to public toilet facilities must not pass through the following spaces:

� Kitchens.

� Storage rooms.

� Closets.

� Similar spaces.

• Employees must be provided toilet facilities as follows:

� In all occupancies.

� In one of the following arrangements:

For emplyoees only.

Combined with pubic toilets.



2902.4.1 Location of toilet facilities in occupancies other than covered malls

• This section does not govern toilet facilities in covered malls.

• Toilet facilities in factory and industrial occupancies are governed as follows:

� Travel distance to toilets may exceed that otherwise permitted by this section in the

following case:

Where approved.

• In other cases, public and employee toilet facilities must be located as follows:

� ≤ 1 story above or below the location that they are required to serve.

� Travel distance to the required toilet faciliteis must be ≤ 500'.

2902.4.2 Location of toilet facilities in covered malls

• Covered mall buildings require public and employee toilet facilities as follows:

� Toilet facilities must be located as follows:

≤ 1 story above or below the location that they are required to serve.

Travel distance to reqiored toilet facilities must be ≤ 300'.

� Required toilet facilities must be provided in one of the following locations:

In each individual store.

In a central toilet area.

� Travel distance to central toilet facilities is measured from the following:

The main entrance of each store or tenant space.

� The following applies where employee toilets are not located in tenant spaces:

Travel distance to the toilets is measured from the employee’s work space.


2902.4.3 Pay facilities

• Required toilet facilites must be free of charge.

• Any pay toilet facilites must be in excess of the required number of facilities.

2902.5 Signage

• Each toilet room entrance requires the following signage:

� The room’s gender designation as follows:

Must be visible.

Must be legible.

Note: ICC A117.1, “Accessible and Usable Buildings and Facilities,” is cited as governing

these signs.

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