PROCESS PIPING · MECHANICAL AND LIFE SAFETY · FIXED BY STEP 01

Forty Grand of Spools You Can't Bill

Your shop is running two months ahead of the field, the spools are stacked in the yard, and the GC won't pay a dime for stored material.

WHY IT IS A PROCESS PIPING PROBLEM

Exotic filler like ERNiCrMo-3 for Inconel or ER2209 for duplex runs $40 to $90 a pound and gets bought up front. Argon for back-purging large-bore stainless is a continuous consumable, and your third-party NDE crew invoices on 30 days while your pay app runs 60 to 90. Every one of those is cash out against work sitting in your yard with no receivable behind it.

WHAT IT COSTS

The size of it

For a $5M contractor that's routinely $250K to $450K of unbillable work in process. That's the number that turns into a near-miss on payroll and gets blamed on slow-paying customers.

OVERHEAD AT $1M–$5M
16%
CFOS target 15% for process piping.
GROSS MARGIN AT $1M–$5M
24%
CFOS target 25% for process piping.
NET PROFIT AT $1M–$5M
8%
CFOS target 10% for process piping.

A shop-fabricating piping contractor carries a manufacturer's working capital on a subcontractor's balance sheet. Mill terms are worse than a distributor's: prepay or letter of credit on alloy grades, plus mill minimums that force a full heat or a minimum footage, so you buy 40 feet of 6-inch duplex to install 22. Then you cut, fit, weld, purge with argon, radiograph, and stack the spools waiting on a site that isn't ready. Billing that material takes an off-site storage rider, a bonded and insured location, title transfer, and often an owner inspection, and plenty of GCs simply refuse it.

WHAT TO DO

Three moves, in order

STEP 01
Put shop work in process on the balance sheet as its own account, valued at material plus shop labor by spool package, and read it every month.
STEP 02
Negotiate the off-site storage rider at contract signing, before the shop starts: spell out the yard, the insurance, the title transfer, and the inspection trigger.
STEP 03
Release spool packages to the shop off the field's ready-for-erection date, so shop capacity stops converting cash into inventory ahead of a receivable.
QUESTIONS

What process piping owners ask

Can't bill for fabricated pipe spools stored in my yard?

Your shop is running two months ahead of the field, the spools are stacked in the yard, and the GC won't pay a dime for stored material.

What does it cost?

For a $5M contractor that's routinely $250K to $450K of unbillable work in process. That's the number that turns into a near-miss on payroll and gets blamed on slow-paying customers.

What do I do first?

Put shop work in process on the balance sheet as its own account, valued at material plus shop labor by spool package, and read it every month.

What are process piping contractors supposed to be making?

Process piping runs 24% gross margin, 16% overhead and 8% net profit before taxes at $1M–$5M. The all-trade average is 7%, so this trade sits 1 points above it. The CFOS target is 10%.

Which part of the system fixes it?

The step is number 01, job cost structure. Seven cost categories and three levels of granularity, built so the estimate and the ledger use the same words. It comes from chapter 1 of CONTROL: The Construction Financial Operating System.

AUTHOR
Josh Luebker
JOSH LUEBKER
MASTER ELECTRICIAN · 150+ PROJECTS · $2.1B+ MANAGED

Josh Luebker ran commercial construction projects before he ran the numbers behind them, on data centres, military bases, hospitals, and high-rises. He wrote CONTROL: The Construction Financial Operating System, which is an eight-step framework for commercial subcontractors, and it publishes on October 1, 2026. He is a master electrician who moved into the office and kept the field vocabulary.

Sulphur Prairie Operations LLC maintains the benchmark reference behind these figures. Every edition is reconciled against the newest CFMA survey release before it publishes here. Where a figure changes between editions, the older edition keeps its year in the title so a citation to it stays correct.

Eight steps. Sixty days.

CONTROL is the full system, written for commercial subcontractors from under $1M to $100M. It publishes on October 1, 2026. Eight steps, six working templates, and the order they install in.