Portable Toilet Event Guideline Chart
The chart below was designed to inform you of the sanitary guidelines you should apply to your event. Note that more restrooms may be needed then specified if you want to prevent people from waiting in lines. Based on the anticipated male/female ratio at the event, you may want to order additional units. Studies have shown that women take on average 40% longer than men to use restroom facilities. If you are serving food and/or beverages (especially liquors) you might also consider ordering additional restrooms. If alcohol is being served, add 15 – 20% more restrooms.

How to use the planning chart:
1)  Determine how long your event will last.
2)  Determine approximately how many people will attend your event.
3)  With this information, use the chart to calculate the number of units needed to insure sanitary conditions.

 

EVENT DURATION IN HOURS

ATTENDANCE

1

2

3

4

5

6

7

8

9

10

U
N
I
T
S

N
E
E
D
E
D

1- 50

1

1

1

2

2

2

2

2

2

2

51 -100

2

2

2

3

3

3

3

3

3

3

101 - 250

3

3

3

3

4

4

4

4

6

6

251 - 500

4

4

4

6

6

6

8

8

8

8

501 - 750

4

4

6

6

6

8

8

8

10

10

751 - 1000

6

6

6

8

8

8

12

12

12

12

2000

8

8

8

8

8

12

12

12

12

16

3000

8

12

15

16

18

18

18

19

20

21

4000

10

16

19

22

24

25

25

27

27

28

5000

12

20

24

27

29

31

32

34

35

35

6000

14

24

28

33

35

37

37

39

40

41

7000

17

27

34

38

41

42

46

46

47

48

8000

20

32

38

44

48

50

50

50

52

54

9000

22

31

42

48

51

54

54

56

58

64

10000

24

39

47

54

58

62

64

66

68

72


Notes:
1)  A minimum of 1 Handicap Accessible unit should be added for events open to the public. Add 1 Handicap Accessible unit for every 20 portable restrooms.
2)  Adequate hand washing should also be provided with portable restrooms in all food service areas.
3)  For adequate sanitation conditions, it is recommended to have a minimum of 1 Hand Washing Station per four restrooms, plus additional stations for food vendors.