Skip to main content
JOB COSTINGCASH FLOWWIP REPORTINGFRACTIONAL CFOSUBCONTRACTOR FINANCEOVERHEAD RATEPAY APP BILLINGAR RECOVERYCONTROLQORERETENTION RECOVERYEQUIPMENT COST BASIS13-WEEK FORECAST JOB COSTINGCASH FLOWWIP REPORTINGFRACTIONAL CFOSUBCONTRACTOR FINANCEOVERHEAD RATEPAY APP BILLINGAR RECOVERYCONTROLQORERETENTION RECOVERYEQUIPMENT COST BASIS13-WEEK FORECAST
The Construction CFO SCHEDULE A FREE CALL
STRUCTURAL CLUSTER · TRADE OPERATING SYSTEM

WHY CONCRETE CONTRACTORS RUN OUT OF CASH.

QUICK ANSWER

Concrete contractors run out of cash because material and labor go out fast while payment comes back slow. Ready-mix and rebar are placed in days on supplier terms of 15 to 30 days, the GC pays Net 30 to 45, labor is often tracked at base wage instead of burdened, and overhead is bid at 5 percent against a real 12 percent. The pour is profitable while the bank account is empty.

On a $400K pour you can have ready-mix, rebar, and finishing labor in the ground within a week, on supplier terms that demand payment in 15 to 30 days, while the GC pays Net 30 to 45 on the monthly pay app. Most concrete subs also track labor at base wage and miss the full burden, the payroll tax, high concrete workers-comp rates, and benefits that add 30 to 40 percent, and carry overhead in their head at 5 percent when the real number is 12 percent or more. None of that timing or buried cost shows on the income statement. CFOS fixes the billing timing, the burdened labor, and the overhead rate together.

BY JOSH LUEBKER Published: February 2026 Updated: June 2026
THE FAILURE MODE

WHY CONCRETE WORK EATS CASH.

Concrete is a material-and-labor trade that spends before it bills. Ready-mix, rebar, and forms are delivered and placed in days, but the suppliers want their money in 15 to 30 days, sometimes cash on delivery, while the GC pays Net 30 to 45 on a monthly pay application. The cash goes out at the speed of the pour and comes back at the speed of the pay cycle.

Labor is the other quiet leak. Concrete is labor-intensive, and concrete labor carries some of the highest workers-comp rates in commercial construction. Track it at base wage and you understate the real cost by 30 to 40 percent, which means you are bidding labor that loses money before the first yard is placed. Then there is overhead: the 5 percent number a lot of concrete subs carry is almost never real, and 12 percent or more is closer to the truth.

Put the material timing, the buried labor burden, and the understated overhead together and you get the concrete pattern: busy crews, full schedule, a profitable-looking P&L, and a bank account that never reflects it. The income statement was never built to show any of those three.

Gross Margin Target
22-25%
Healthy range at $1M to $12M
Overhead Rate
12-14%
Of revenue, recovered in bids
Net Margin Target
8%+
After real overhead is loaded
3 REASONS YOUR CASH IS GONE

THE MECHANISMS NO ONE PRICES IN.

READY-MIX AND REBAR PAID BEFORE BILLED

Suppliers want 15 to 30 days; the GC pays in 45.

Concrete and rebar are delivered and placed within days, but the supplier wants payment in 15 to 30 days or cash on delivery, while the GC pays Net 30 to 45 on the monthly pay app. On a $400K pour that is a five-figure material gap you finance out of your own cash or your line of credit, and it never shows as a cost on the income statement.

LABOR BURDEN UNDERSTATED

Base wage is not what a concrete crew costs.

Concrete is labor-heavy, and concrete labor carries high workers-comp rates. If job costing tracks base wage and skips the full burden, payroll tax, comp, and benefits, you understate labor by 30 to 40 percent. You bid and run jobs that lose money on labor while believing they are profitable.

OVERHEAD BID AT 5 PERCENT

The number in your head is half the real one.

Many concrete subs carry overhead at 5 percent because that is what they have always used. The real number is closer to 12 percent or more. Bidding 5 against 12 buries a 7-point loss in every job, and one good pour hides it in the blended P&L while the cash quietly drains.

WHERE CONTRACTORS GET MISLED

THE WRONG DIAGNOSIS COSTS YOU YEARS.

Wrong answer 1: ready-mix prices keep going up. Material cost matters, but the bigger drain is financing the material for weeks before you can bill it, not the unit price.

Wrong answer 2: concrete is just a thin, competitive trade. It is competitive, which is exactly why burdened labor and a real overhead rate matter. You cannot win a race while carrying weight you cannot see.

Wrong answer 3: the crews need to go faster. Speed helps, but if labor is tracked at base wage you cannot even tell which crews and which work types actually make money.

The real answer: labor is not fully burdened, overhead is understated, and the material timing is left to the line of credit. Three gaps, three different places, never visible together. CFOS closes all three.

HOW CFOS FIXES IT

SAME BUSINESS. BETTER SYSTEM.

CFOS is the Construction Financial Operating System. For concrete contractors it installs as a set of specific deliverables, not advice:

Schedule of values structured to bill stored materials and completed pours early
Fully burdened labor in job costing, including high concrete workers-comp rates and benefits
Real overhead rate calculated and loaded into every bid, replacing the 5 percent assumption
Formwork carried as a reusable equipment cost basis, not expensed job to job
Retention tracked as a separate receivable with a closeout collection routine
13-week cash forecast built around ready-mix terms and GC pay cycles
PRICING

FLAT MONTHLY FEE. NO SURPRISES.

Two tiers based on trailing 12-month revenue. No hourly billing. No payroll. No add-ons. Everything included in the flat monthly fee.

RevenueCore FinancialExecutive Financial
Under $1M$1,900/mo$2,900/mo
$1M–$3M$2,600/mo$3,600/mo
$4M–$6M$3,800/mo$5,500/mo
$7M–$9M$5,100/mo$6,900/mo
$10M–$12M$6,100/mo$8,500/mo
$13M+QuotedQuoted
What's Included →
COMMON QUESTIONS

FREQUENTLY ASKED.

Concrete contractors run out of cash because the trade pays out fast and collects slow. Ready-mix and rebar are delivered and placed in days, and the supplier wants 15 to 30 days or cash on delivery, while the GC pays Net 30 to 45 on a monthly pay app. On a $400K pour that material gap is real money you finance. Labor is heavy and often tracked at base wage instead of fully burdened, understating cost 30 to 40 percent, and many concrete subs carry overhead at 5 percent when the real number is 12 percent or more. The income statement shows profit because none of that timing or burden lands on a line you watch.
CFOS structures your schedule of values to bill stored materials and completed pours early, loads fully burdened labor including high concrete workers-comp rates into your job costing, calculates your real overhead rate and corrects the 5 percent assumption, builds a cost basis for reusable formwork instead of expensing it, tracks retention as a separate receivable with a closeout routine, and runs a 13-week forecast around ready-mix terms and GC pay cycles.
CFOS serves commercial concrete subcontractors doing $1M–$12M. Core Financial starts at $1,900/month. Executive Financial starts at $2,900/month. Onboarding takes 60 days.
Core Financial includes ControlQore setup, job costing aligned to your estimates, full-service bookkeeping, and bank reconciliations. Executive Financial adds monthly CFO advisory meetings, controllership, and strategic accountability. No payroll. No scope gaps.
60 days. We migrate your books to the start of your last taxable year, set up ControlQore, and build your job costing structure from scratch. Fully operational in two months.
Josh Luebker, The Construction CFO
Josh Luebker
Fractional CFO · The Construction CFO

Former commercial construction project manager and master electrician. Managed 150+ projects totaling $300M+ including data centers, military bases, hospitals, and high-rises. Now fractional CFO for commercial subcontractors doing $1M–$12M through Sulphur Prairie Management. About Josh →  |  LinkedIn →

$2.1M+
Client AR Recovered Since 2023
24
Active Trade Specializations
60 DAYS
Average Onboarding Time
CLIENT RESULTA $4.9M concrete contractor collected $203K in overdue receivables in the first week after its overhead rate was corrected from 5 percent to 12 percent. Anonymized client result.
RELATED RESOURCES
CFOS System
Run on CFOS
The Construction Financial Operating System. What it is and how it runs.
CFOS Module
Cash Control System
Payroll, AR, LOC, and cash timing. How CFOS controls the crisis layer.
CFOS Module
Job Profitability System
Why jobs look profitable but lose money. How CFOS shows you the truth.
SYSTEM CONNECTIONS
CFOS SPINE + MODULES
Run on CFOS — Full System Index Job Profitability System Cash Control System Cash Flow Cycle System
RELATED TRADE OS
Concrete Flatwork OSMasonry OSStructural Steel OS
SERVICE LAYER
Fractional CFO for Construction Construction Bookkeeping Construction Controllership

DO YOU KNOW YOUR TRUE COST PER YARD?

We will show you exactly where the cash is leaking on your concrete jobs before we talk about anything else.

BOOK A FREE 30-MIN DIAGNOSTIC →

30 minutes. Free. No sales pressure. We tell you what is broken first.

OR SEE YOUR NUMBERS FIRST → FREE CEO REPORT TOOL
THE CONSTRUCTION CFO
Run on CFOS Cash Control System Concrete Overhead Rate Schedule a Call Josh@ConstructionCFO.net CONTROL Book →
© 2026 SULPHUR PRAIRIE MANAGEMENT · SULPHUR ROCK, AR
0
Josh Luebker, The Construction CFO
JOSH LUEBKER
FOUNDER & CFO

Master electrician and former project manager, 150+ projects and $2.1B+ in commercial work. Now runs the numbers for subcontractors instead of standing on the job site.

LinkedIn About
Stewart Bohrer, The Construction CFO
STEWART BOHRER
VP OF OPERATIONS

Keeps the system running day to day: job costing, WIP, monthly financial reviews, and the follow-through between calls. Josh handles onboarding.

LinkedIn About
LinkedIn YouTube About Run on CFOS