TABLE 4-1

MINIMUM PLUMBING FACILITIES

(SIMPLIFIED)
Types of Ur(10) Lav BS D(3), (12)
WC
Building or Occupancy(1) (Fx / P) (Fx / P) (Fx / P) (Fx / P)

EOS O WatCh Ur Lav BeStfrienD

I. EMPLOYEE USE / STAFF [AsO D SHIP]
[1] Assembly Places M | F(13) M (Only) M|F 1: 8 P [3] [6] 1: 75(12) P [6] [7]
(Theaters, Auditoriums, Convention Halls, etc) 1 | 1 : 15 0: 9 1: 40
[2] Office or Public Buildings 2 | 3 : 35 1: 50 [3] [4]
[3] Dormitories 3 | 4 : 55
[4] Schools (All Schools)
[5] Hospital Over 55: Over 50: Over 150: [5]
[6] Institutional Other Than Hospitals or Penal +1 / 40 M +1 / 50 M +1 / 20 M
Institutions (on each occupied floor) +1 / 40 F +1 / 15 F
[7] Penal Institutions

II. OFFICE / PUBLIC BUILDING USE [AsO]

[1] Assembly Places M| F(13) M (Only) M|F 1: 75(12) P
[1]
(Theaters, Auditoriums, Convention Halls, etc) | | [2]
[2] Office or Public Buildings - | 3 | - : 50 1: 100 1: 200
1 | 4 | - : 100 2: 200 2: 400
2 | 8 | 1 : 200 3: 400 3: 750
3 | 11 | 2 : 400 4: 600
- | - | 3 : 750

Over 400:[1] Over 600: Over 750:

+1 / 500 M +1 / 500 M[1] +1 / 500 M
+2 / 300 F +1 / 300 M[2] +1 / 500 F

Over 55:[2]
+1 / 500 M
+2 / 55 F

III. SCHOOLS / STUDENT USE [NESC]

(1) Schools 1: 75(12) P (a) (b) (c)
(a) Nursery M|F M|F
1: 20 1: 25
2: 50 2: 50

Over 50: Over 50:

+1 / 50 M +1 / 50 M
+1 / 50 F +1 / 50 F

(b) Elementary M|F M (Only) M| F

1: 30 | 25 1: 75 1: 35 | 35

(c) Secondary / Colleges M|F M (Only) M| F

1: 40 | 30 1: 35 1: 40 | 30

IV. OTHERS [HDR / DP / WWII]

[1] Hospital [WIW] 1: 75(12) P (a) (b) (c)

(a) Waiting Rooms 1/R 1/R

(b) Individual Room 1/R 1/R 1/R

(c) Ward Room 1 / 8 Pa 1 / 10 Pa 1 / 20 Pa

[2] Dwellings(4) [SM/A]

(a) Single Dwelling 1 / Dw 1 / Dw 1 / Dw

(b) Multiple Dwelling or Apartment 1 / Dw or AU 1 / Dw or AU 1 / Dw or AU

[3] Restaurants, Pubs and Lounges(11) M | F M (Only) M | F(13)
1: 50 | 15 1: 150 1: 150
2:150 | 35 2: 200
3:300 | 55 3: 400

Over 300: Over 150: Over 400:

+1 / 200 M +1 / 150 M +1 / 400 M
+1 / 200 F +1 / 400 F
[4] Dormitories(9) M | F(13) M (Only) M| F 1: 8 P
for School or Labor 1: 10 | 8 1: 25 1: 12

Over 10: Over 150: Over 150:

+1 / 25 M +1 / 50 M +1 / 20 M
+1 / 15 F
Over 8:
+1 / 20 F
[5] Penal Institution
for Prison Use Male (Only)

(a) Cell 1/C 1/C 1 / C (block flr)

(b) Exercise Room 1 / ExR 1 / ExR 1 / ExR 1 / ExR

[6] Worship Places M F(13) M (Only) 1: 75(12) P
Educational and Activities Unit 1: 25 1: 75 1: 25 1 / 2 wc
2: 250 2: 125
3: 250
[7] Worship Places M | F(13) M (Only) 1: 75(12) P
Principal 1: 150 | 75 1: 150 1 / 2 wc

[8] Institutional Other Than Hospitals or Penal M |F M (Only) M|F 1: 8 P 1: 75(12) P

Institutions (on each occupied floor) 1: 25 | 20 0: 9 1: 10
1: 50

Over 50:
+1 / 50 M
[9] Industrial(6) Warehouses, Workshops, M|F 1: 75(12) P
Foundries and Other Establishments 1: 10 ≤100: 1 shower / 15 P
for Employee Use 2: 25 +1 / 10 P
3: 50
4: 75 >100:
5: 100 +1 / 15 P(7),(8)

Over 100:
+1 / 30 M
+1 / 30 F

E [AsO D SHIP] O S
[AsO] [NESC] O [HDR / DP / WWII]