Drain Waste and Vent Pipes - Hanger Spacing
Support of Drain Waste and Vent - DWV - pipes.
Both vertical and horizontal drainage pipes must be supported properly. Recommended maximum distances between the hangers are indicated in the table below.
Piping Material | Distance between Supports (ft) | |
---|---|---|
Horizontal Pipe | Vertical Pipe | |
ABS plastic | 4 | 4 |
Galvanized steel | 12 | 15 |
DWV Copper | 10 | 10 |
Cast Iron | 5 | 151) |
PVC plastic | 4 | 4 |
1) For cast iron stacks, the base of each stack must be supported
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