🔧 IPC / UPC Code Drainage Fixture Units (DFU) & Building Drain Sizing

Plumbing Drain Fixture Unit (DFU) Pipe Sizing Calculator

Calculate total drainage fixture units (DFUs) for residential and commercial multi-family buildings (toilets, showers, sinks, commercial dishwashers) to properly size horizontal building drains, soil stacks, and sewer lateral connections under IPC/UPC tables.

1. Project & Operating Inputs

Total Commercial Fixture Count (Fixtures)

Average DFU Load per Fixture (DFUs)

Contractor Rough-In Bid per Fixture ($ / Fixture)

PVC Pipe, Fittings & Rough-In Labor Cost ($ / Fixture)

2. Financial Breakdown & Yield

IPC / UPC DFU & PIPE SIZING

Turnkey Rough-In Profit

Plumbing Job Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost