STRUCTURAL STEEL

STRUCTURAL STEEL FABRICATION DEPOSITS AND CASH FLOW: LEAD TIMES, DEPOSITS, AND BILLING MILESTONES.

QUICK ANSWER

Structural steel procurement creates a cash problem that doesn't exist in other trades: a 25 to 50 percent fabrication deposit goes out at order placement, and billing recovery doesn't begin for 12 to 20 weeks. On a $400,000 steel package, that's $140,000 deployed today against billing that doesn't start for four months. The contractor who models that distance before placing the order funds it from a planned LOC draw. The one who doesn't find out about it when the deposit clears and the cash position drops without warning.

Every trade has a procurement problem. Steel has a bigger one, because the money goes out before the steel exists. A pipe order gets delivered in two weeks and installed the same month, so the cash comes back on the next pay app. Steel gets ordered in March, fabricated through May, set in June, and billed in July. Four months of the contractor's own money sits in a fabricator's shop, and nothing on the income statement says so, because a deposit is a balance sheet event. The forecast is the only place it's visible before it hurts.

BY JOSH LUEBKERPublished 2026-08-06Updated 2026-08-07
THE DEFINITION

WHAT IT MEANS.

A steel fabrication deposit is the 25 to 50 percent of the fabrication contract a fabricator requires at order placement, months before the steel is delivered, installed, or billable.

The deposit is a prepayment, so it never touches the income statement in the month that hurts. A contractor scanning the P&L for the reason cash got tight won't find the reason there. It shows in the bank balance and on the balance sheet, which is why steel procurement has to be a forecast line rather than a monthly surprise.

THE STRUCTURAL STEEL CASH FLOW PROBLEM

WHERE THE MONEY GOES AND WHEN IT COMES BACK.

01

The deposit gets paid before the steel exists

Structural steel fabricators require deposits, typically 25 to 50 percent of the fabrication contract, at order placement. Lead times for structural steel fabrication run 8 to 20 weeks depending on complexity and shop backlog. A contractor who orders $400,000 in structural steel with a 35 percent deposit requirement deploys $140,000 in cash at order placement, and the steel isn't delivered for 12 weeks, not installed for 14 to 16 weeks, and not billed until after installation. That $140,000 waits 16 to 20 weeks before billing recovery begins, and it has to be in the cash forecast before the order gets placed.

02

The SOV bills completion, not procurement

A standard schedule of values bills against installation completion, so nothing in it pays the contractor back for money already committed to fabrication. There's no stored materials line to bill fabricated steel sitting in the shop, and no mobilization line carrying procurement cost. Both of those are negotiable at contract execution and neither one gets added afterward. A contractor who signs the GC's standard SOV has agreed to fund the deposit out of pocket for the full lead time.

03

Lead time risk when the schedule moves

When the steel is ordered and the project schedule then changes, because the owner pushes the start date or other trades aren't ready or a permit is late, the steel still gets fabricated on schedule while the project doesn't. The fabricator may charge storage fees. The billing milestone that was supposed to cover the deposit gets pushed out with the schedule. The contractor has paid for steel that can't be billed because the installation milestone hasn't been reached, and the way out is written notice to the GC requesting storage cost reimbursement and schedule impact.

THE ARITHMETIC

WHAT IT LOOKS LIKE IN DOLLARS.

The $400,000 steel package

A $400,000 structural steel package with a 35 percent deposit puts $140,000 out the door at order placement. The steel is delivered around week 12, installed by week 14 to 16, and billed after that. The $140,000 waits 16 to 20 weeks before billing recovery begins. That's one package on one job, and nothing in the monthly financials flags it, because the money moved from cash into a prepayment rather than into cost.

What it does to LOC sizing

A structural steel subcontractor consistently carrying $200,000 to $400,000 in steel deposit exposure needs a line of credit sized to cover that exposure plus operating costs. The LOC that suits a concrete or civil contractor at the same revenue isn't enough for a steel contractor, because the deposit structure of steel procurement is different. The exposure figure, not the revenue figure, is what the LOC request gets built from.

HOW TO MANAGE STEEL PROCUREMENT CASH FLOW

FOUR ACTIONS BEFORE THE ORDER IS PLACED.

Model the deposit in the 13 week forecast before placing the order

The deposit amount, the date it goes out, and the date billing recovery starts all go in as forecast lines. If the draw that results exceeds current LOC availability, that gets resolved before the order goes in rather than after the check clears. This is the whole difference between a planned draw and an emergency one.

Negotiate stored materials billing language at contract execution

The provision goes into the subcontract before work starts, because it doesn't get added later. A stored materials line converts the deposit from unfunded to funded by creating a billing event at the point the deposit goes out. Not every GC contract allows it, and it's worth asking for on any large steel procurement.

Build a mobilization SOV line that carries procurement cost

Even without stored materials language, a mobilization line at 10 to 15 percent of contract value recovers procurement deposit cost in the first billing cycle. That line gets negotiated at signing, alongside the rest of the schedule of values. It's the fallback when stored materials billing is off the table.

Track fabrication lead time against the project schedule weekly

When the fabrication lead time and the project schedule begin to diverge, the GC gets written notice and a request for either an expedite or a storage cost recovery plan. Written notice in week two costs nothing to send. The same claim raised at closeout is a fight the contractor usually loses.

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COMMON QUESTIONS

FREQUENTLY ASKED.

Sometimes. Fabricators use deposits to lock in shop time and cover their own material purchase. With an established fabricator where you have a track record of completing orders, a smaller deposit or payment milestones tied to fabrication progress may be negotiable. On a competitive project with a fabricator you haven't worked with before, the standard deposit terms are usually not negotiable.
A stored materials provision in the subcontract lets the contractor bill for material that has been fabricated and paid for but not yet delivered to the project site. The GC typically requires proof of ownership through a bill of sale, a certificate of insurance covering the stored material, and a storage location that's identifiable and secure. Not all GC contracts include the provision by default, but many GCs will add it for a large material procurement when you ask at contract execution.
Yes. For structural steel subcontractors the 13 week cash forecast carries deposit payment dates, expected delivery dates, and billing milestone dates pulled off the SOV. The distance between the deposit and the first billing recovery is visible in the forecast before the order gets placed, so the LOC draw that funds it's planned instead of discovered.
Three tiers, and which one you are in depends on how much of the work you want off your desk. Core is where you stop guessing: job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a monthly meeting that ends in decisions, while your bookkeeper keeps doing the books. Executive is where you stop touching the books, because we run the bookkeeping and the controllership as well. Strategic is where every job shows its margin while it is still running, because the job costing and WIP platform is set up and managed for you. No payroll. No scope gaps.
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WHAT THIS TIES INTO
Josh Luebker, The Construction CFO
Josh Luebker
FRACTIONAL CFO · THE CONSTRUCTION CFO

Former commercial project manager and master electrician: 150+ projects worth $2.1B combined, from $50,000 to $300M. Now fractional CFO to commercial subcontractors.

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