18-29-709.2 Fixtures not listed in Table 18-29-709.1.
   Fixtures not listed in Table 18-29-709.1 shall have a drainage fixture unit load based on the outlet size of the fixture in accordance with Table 18-29-709.2. The minimum trap size for unlisted fixtures shall be the size of the drainage outlet but not less than 1 1/4 inches (32 mm).
Table 18-29-709.2
Drainage Fixture Units for Fixture Drains or Traps
 
Fixture Drain or Trap Size (inches)
Drainage Fixture Unit Value
1 1/4
1
1 1/2
2
2
3
2 1/2
4
3
5
4
6
 
For SI: 1 inch = 25.4 mm.