Dormitories require the use of one laundry tray for each 50 people and one slop sink for each 100 people. However, washing machines can be used in lieu of laundry trays. This information is found in Figure 9.14 and Figure 9.2. It is also required that dormitories which are for the exclusive use of one sex or the other shall have double the number of fixtures listed under the gender-specific restrooms in the table. There are also rulings in Figure 9.14 pertaining to bathtubs and showers. You will find that sizing dormitories is not difficult, but that it does involve some rules that we have not previously used.
GATHERING PLACES
Gathering places, such as churches, theaters, auditoriums, and similar places can be sized for plumbing fixtures by using the information in Figure 9.15. This reference table is straightforward and holds no surprises. If at any time you are not sure how to title a building’s classification, check with your local code enforcement office. Remember also to verify local standards for sizing requirements. Given the proper information from your local code, you should have no trouble determining the minimum fixture requirements for buildings.
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Heavy manufacturing, l() warehouses1,1 foundries, and similar establishments12-14
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Occupant content per shift, substantiated by owner. Also see 407.3.2
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Persons (total)
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Male
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Female
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Persons (total)
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Male
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Female
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One drinking fountain for
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1-10
11-25
26-50
51-75
76-100
For each additional 60 per-
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1
2
3
4
5
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1
1
1
1
1
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1-15
16-35
36-60
61-90
91-125
For each additional 100
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1
2
3
4
5
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і
і
і
і
і
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each 75 persons. One shower for each 15 persons exposed to excessive heat or to skin contamination with poisonous, infectious, or irritating material.
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sons over 100,
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persons over
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add
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1
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0.17
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125 add
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1
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O. l7
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FIGURE 9.12 ■ Minimum fixtures for heavy manufacturing. (Courtesy of Standard Plumbing Code)
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Bathtubs, showers
and miscellaneous fixtures
One drinking fountain for each 75 persons.
One shower for each 15 persons exposed to excessive heat or to skin contamination with poisonous, infectious, or irritating material.
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Building or occupancy2 Occupant content2
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Water closets3
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Persons (total)
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Male
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Female
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1-25
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1
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1
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26-75
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2
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2
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76-100
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3
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3
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For each additional 60 persons over 100 persons add
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1
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1
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Lavatories4
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Persons (total)
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Male
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Female
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1-35
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1
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1
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36-100
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2
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2
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101-200
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3
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3
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For each additional 100 persons over 200 persons add
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1
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1
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Light mfg.10 Light
Warehousing11 and workshops, etc.1213
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Occupant content per shift, substantiated by owner
Also see 407-3.2
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Dormitories’5
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50 sq ft per
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Persons (total)
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Male16
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Female16
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Persons (total)
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Male
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Female
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Washing machines may be
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person (calculated on sleeping area only)
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1-10 11-30 31-100 For each additional 50 persons over 100, add
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1
1
3
1
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1
2
4
1
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1-12 13-30 For each additional 30 persons over 30 add
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1
2
1
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1
2
1
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used in lieu of laundry tubs.15
One shower for each 8 persons. In women’s dorms add tubs in the ratio 1 for each 30 females. Over 150 persons add 1 shower for each 20 persons.
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FIGURE 9.14 ■ Minimum fixtures for dormitories. (Courtesy of Standard Plumbing Code)
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Theaters, auditoriums, churches, waiting rooms at transportation terminals and stations
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Drinking fountains
Persons Fixtures
1-100 1
101-350 2
Over 350 add one fixture for each 400.
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