How accurate are the material takeoff and cost calculations?

Calculations are grounded in industry-standard engineering formulas (such as compacted density multipliers, ASTM standards, and CSI MasterFormat divisions), with customizable local material unit costs and compaction waste factors.

What waste allowance factor should be added to material orders?

For commercial and residential trade installations, standard engineering practice recommends including a 5% to 10% material waste and compaction contingency factor.

Can I export these takeoff sheets for client bidding?

Yes, you can export full itemized material schedules and bid breakdowns directly to CSV or printable takeoff summaries.

International Plumbing Code (IPC & UPC) Standards

Plumbing Pipe & WSFU Sizer

Size your home or commercial building's main water meter and service line. Calculate total Water Supply Fixture Units (WSFU) and peak gallons per minute (GPM).

Fixture Counts

Toilets / Water Closets (2.5 WSFU each)

Showers & Bathtubs (2.0 WSFU each)

Bathroom Sinks / Lavatories (1.0 WSFU)

Kitchen Sink & Dishwasher (2.5 WSFU)

Washing Machine / Laundry (2.0 WSFU)

Outdoor Hose Bibbs (2.5 WSFU)

Main Sizing Results

Recommended Main Line Size

3/4" or 1" Pipe

Total Fixture Units: 27.5 WSFU

Estimated Peak Demand (Hunter's Curve): 18.5 GPM

Recommended Water Meter: 3/4" Meter

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