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Vent Stack Sizing Calculator
Size main vent stacks and stack vents based on drainage fixture units.
DFU Served
?
Fixture units on soil/waste stack being vented.
DFU
Developed Length
?
Total length of vent piping.
feet
Calculate
Results
Vent Size
-
inches
Max DFU Capacity
-
DFU
Max Length Allowed
-
feet
References:
Based on UPC Table 906.1 and IPC Table 916.1 vent sizing