Cleanout Spacing Calculator
Determine cleanout requirements per UPC/IPC
Cleanout Requirements
Cleanouts Required
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Maximum Spacing
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Cleanout Size
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Direction Change Cleanouts
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Distance Cleanouts
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Base/Stack Cleanout
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Cleanout Spacing Summary
| Pipe Size | UPC Max | IPC Max |
|---|---|---|
| Up to 4" | 75 ft | 100 ft |
| 6" - 10" | 100 ft | 100 ft |
| Over 10" | 150 ft | 150 ft |
Cleanout Location Requirements
Building Drain
At upper terminal
Each aggregate change >135 deg
Every 75-100 ft
Building Sewer
At property line
Within 5 ft of building
Every 75-100 ft
Stacks
Base of each stack
3 ft above floor
Each floor (hi-rise)
Branch Lines
Start of horizontal
Or fixture serves as
If removable trap
Cleanout Installation Requirements
Size Requirements
- Same size as pipe up to 4"
- 4" minimum for larger pipes
- Full-size preferred for sewer
- Test tee option available
Accessibility
- 18" minimum clearance
- 24" preferred working space
- Accessible panel if concealed
- Grade-level box for buried
Special Cases
- Test tees at changes
- Two-way for sewers
- Counter-flow installation
- Watertight if below flood