UFC 3-420-01
25 October 2004
Table 403-1. WATER CLOSET ALLOWANCES
Minimum Number of Water Closets1
Number of Employees
1 to 15
1
16 to 35
2
36 to 55
3
56 to 80
4
81 to 110
5
111 to 150
6
151 and over
6 for the first 150, plus
1 additional fixture for
each additional 40
employees
1
Where toilet rooms will not be used by women, urinals may be substituted for some water closets, except
that the number of water closets in such cases will not be reduced to less than two-thirds of the minimum
specified.
403.1.2 Lavatories. Lavatories will be made available in all places of
employment according to the requirements for lavatories as specified in Table
403-2. In a multiple-use lavatory, 24 linear inches (610 mm) of wash sink or 20
inches (60 mm) of a circular basin, when provided with water outlets for each
space, will be considered equivalent to one lavatory. Lavatories in toilet rooms
for food service employees will be provided with other than hand-operated
valves.
Table 403-2. LAVATORY ALLOWANCES
Number of
Minimum Number
1
Type of Employment
Employees
of Lavatories
Non-industrial office
1 to 15
1
buildings, public
16 to 35
2
buildings, and similar
36 to 60
3
establishments
61 to 90
4
91 to 125
5
126 and over
1 additional
fixture for each
additional
45 employees
1
For other types of employment, at least one lavatory for three required water closets will be provided.
403.1.3 Drinking fountains. One drinking fountain for each 75 employees or
fraction and at least one fountain per floor will be provided.
A-5
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