Drainage Pipe Calc Plumb
DWV Pipe Calculator
$0.99 · In‑App Purchases · Designed for iPad. Not verified for macOS.
Drainage Pipe Calc Plumb - professional NEC calculator for electricians. Offline, permit-ready.
Drainage Pipe Sizing helps you calculate drain, waste, and vent (DWV) piping systems per IPC 2024 and UPC standards for professionals sizing residential and commercial systems. Instantly determine correct pipe diameter for horizontal branches, building drains, and vertical stacks with DFU-based calculations. Works for residential and commercial drainage systems, completely offline on the job site. Reduce sizing errors, accelerate installations, and ensure full code compliance.
FEATURES
- 4 Drainage System Modes: Horizontal branches, building drains/sewers, and stacks (3 or fewer / more than 3 branch intervals)
- DFU-Based Sizing: Input total Drainage Fixture Units and pipe type to calculate required diameter
- 12 Pipe Diameters: 1-1/4 inch through 15 inches per the printed tables
- 4 Slope Options for building drains: 1/16, 1/8, 1/4, 1/2 inch per foot — printed dashes enforce IPC 704.1 minimum slopes; branches and stacks are slope-independent per the printed table
- Printed IPC Tables 710.1(1) and 710.1(2): DFU capacities exactly as published
- Material-Agnostic: DFU tables apply to all approved DWV materials (PVC, cast iron, copper, galvanized)
- Capacity Verification: Check if selected pipe size can handle calculated DFU load
HOW IT WORKS
1. Select pipe type (horizontal branch, building drain, or vertical stack)
2. Enter total drainage fixture units (DFU) from fixture unit calculator
3. Choose pipe slope (1/8, 1/4, or 1/2 inch per foot)
4. See recommended pipe diameters with IPC 2024 DFU capacity
5. Export sizing chart to PDF for code inspection and permit documentation
PERFECT FOR
- Plumbers and drainage contractors installing new systems
- Journeyman plumbers and apprentices studying DWV design
- Plumbing inspectors verifying system compliance
- Mechanical estimators calculating material requirements
- Building code officials conducting plan reviews
- Plumbing contractors and master plumbers
OPTIONAL PRO UPGRADE — $2.99 ONE-TIME IN-APP PURCHASE
The following features require a separate one-time in-app purchase. They are not required to use the calculator:
• Unlimited saved calculation history
• PDF export of results
• Dark theme
• Ad-free experience
STANDARDS & COMPLIANCE
Capacities follow the printed IPC tables (unchanged across 2018/2021/2024): Table 710.1(1) for building drains and sewers by slope, Table 710.1(2) for horizontal fixture branches and stacks, and Section 704.1 minimum slopes. Always confirm with your local code official.
PERFECT FOR
- Professional plumbers and drainage contractors
- Journeyman plumbers and apprentices
- Plumbing inspectors and code officials
- Building contractors and estimators
- Mechanical engineering firms
- Plumbing educators and students
OFFLINE & PRIVACY
- Works 100% offline - no internet needed on job sites
- No account required - immediate access without signup
- No data collection - your drainage designs stay private
- All calculations stored locally on your device
Part of PlumbTools Suite - professional plumbing calculators and code reference tools. Size drainage systems faster, eliminate errors, and ensure full IPC 2024 compliance with accurate DWV calculations.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's new:
- All DFU capacities now match the printed IPC tables: building drains/sewers per Table 710.1(1) (with the 1/16 in/ft column and minimum-slope dashes), branches and stacks per Table 710.1(2)
- New stack mode for more than 3 branch intervals; sizes extended to 15"
- The result now shows the exact IPC table used
The developer, Rizvan Adzhoian, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Rizvan Adzhoian
- Size
- 34.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
18+
- 18+
- Contains
Advertising
- In-App Purchases
Yes
- Pro Unlock $2.99
- Copyright
- © 2026 Rizvan Adzhoian
