Ill. Admin. Code tit. 77, pt. 890, subpt. M, app A, tbl. J

Current through Register Vol. 49, No. 2, January 10, 2025

Table J - Size of Vent Stacks

Number of Bathroom Groups	Diameter of Vent Stacks (Inches)
1 or 2	2
3 to 9	3
10 to 16	4

Ill. Admin. Code tit. 77, pt. 890, subpt. M, app A, tbl. J