🔥 NFPA 54 / IFGC Longest Length Method, Schedule 40 Steel & CSST Gas Flow CFH

Commercial Natural Gas Pipe Sizing Calculator

Size commercial natural gas distribution piping under NFPA 54 & International Fuel Gas Code (IFGC): calculate total connected appliance input demand (Cubic Feet per Hour CFH = MBTU / 1.05 at 0.60 specific gravity), required Schedule 40 black steel and CSST pipe diameters based on longest length pressure drop (0.5 in. WC or 2 PSI systems), and gas plumbing profits.

1. Project & Operating Inputs

Longest Gas Piping Run Length (Linear Feet e.g. 280 Linear Feet)

Total Connected Gas Appliance Load (MBTU / Hr e.g. 3,500 MBTU/Hr)

Customer Bid Price for Supplied & Welded Gas Line ($ / Lin Ft)

Schedule 40 Black Steel Pipe, Forged Fittings, Valves, Welder ($ / Ft)

2. Financial Breakdown & Yield

NFPA 54 NATURAL GAS PIPING

Turnkey Gas Piping Package Profit

Gas Piping Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost