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CONCRETE · JOB COSTING · CONSTRUCTIONCFO.NET

WHY CONCRETE CONTRACTORS CAN'T FIND WHERE THE MONEY WENT.

QUICK ANSWER

Labor cost per cubic yard is your production standard — what it costs in fully burdened labor to place, finish, and cure one yard of concrete on a given work type. Your estimate embedded a specific cost per yard for each phase. When actual cost per yard exceeds estimated, every yard over budget is a margin loss that compounds for the rest of the job. Most concrete contractors track total labor dollars against a lump budget and never see the per-yard variance until the job closes.

CFOS builds cost per yard into the weekly job review for every active concrete job. A phase running at $42/yard actual against $34/yard estimated has a problem that is visible in week 2 — not at final billing.

BY JOSH LUEBKERPublished: June 2026Updated: June 2026
$/Yard
The Right Concrete Metric
Not total labor dollars. Labor cost per cubic yard by phase — slab, wall, column, elevated — tracked against the estimated rate weekly.
3–5 Phases
Minimum Phase Structure
Slab on grade, elevated slabs, walls, columns, and foundations have fundamentally different production rates and crew compositions. One labor line for all concrete is not job costing.
$24K
Typical Unrecovered Variance — $1.5M Concrete Job
A $1.5M concrete job running $8/yard over on 3,000 yards of slab work. Visible in week 2. Gone by closeout if no one is tracking the rate.
THE BLENDED RATE PROBLEM
One Labor Line for All Concrete Work Hides the Variance

A concrete contractor running slab on grade, elevated deck, and wall panels on the same job has three fundamentally different production problems. Slab on grade runs at one labor rate per yard. Elevated deck involves different equipment, more setup, and higher risk — it runs at a different rate. Wall panels are different again. A single labor budget for all three means a $40,000 overrun on elevated deck is hidden inside a $180,000 concrete labor line that looks approximately on budget.

Phase-level cost codes that match the estimate structure — one code per work type — are the minimum requirement for concrete job costing to produce actionable data.

THE FULLY BURDENED RATE PROBLEM
Estimating at Base Wage Understates Every Labor Hour

A concrete laborer at $28 per hour base costs $47 to $56 per hour fully burdened when employer payroll taxes, workers compensation, health insurance, and retirement contributions are included. Workers comp alone for concrete work runs 18 to 28 percent of wage in most states. A contractor who estimates labor at $28 base and incurs $52 actual is 85 percent over on every labor hour — before any production variance is factored in.

CFOS corrects the burdened rate first. A $4.9M concrete subcontractor netting $161,000 went to $1,112,000 net profit the following year after CFOS corrected the burdened labor rate and implemented phase-level tracking. Same revenue. Same crews. The number was always there. It was just invisible.

THE TIMING PROBLEM
Labor Variance at Closeout Is Not Actionable

A concrete PM who sees a $38,000 labor overrun at job closeout has exactly one option: document it and move on. A concrete PM who sees a $4,200 labor variance in week 3 of a 14-week job has eight options — crew redeployment, production rate coaching, sequence adjustment, overtime authorization, change order review, back-charge evaluation, revised cost-to-complete, and an early conversation with the GC if conditions changed.

The difference between those two scenarios is not the variance. It is the timing. CFOS produces the per-yard cost by phase every Friday so the options are available before they expire.

01
BUILD COST CODES BY CONCRETE WORK TYPE
Slab on grade, elevated slab, walls, columns, foundations, flatwork finish — each gets its own cost code. Same structure as the estimate. When labor is logged, it goes to the right phase. Cost per yard by phase is calculated weekly.
02
USE FULLY BURDENED RATES IN EVERY ESTIMATE
Calculate the actual fully burdened rate for your workforce — base wage plus payroll taxes, workers comp, health insurance, and retirement. Use that rate in every estimate and every job cost comparison. Base wage estimates that understate burden by 40 to 90 percent make every job cost report wrong from day one.
03
TRACK YARDS PLACED ALONGSIDE LABOR HOURS
Every week, record cubic yards placed by work type alongside labor hours logged. Divide dollars by yards. Compare to the estimated rate. A phase running at 115% of estimated cost per yard has a problem that is visible, quantifiable, and still recoverable.
04
30% COMPLETION JOB REVIEW — MANDATORY
At 30% completion, every active job gets a formal review: cost per yard actual vs estimated by phase, projected final cost, projected final margin. This is the last point where material corrections are possible on the majority of scope. CFOS makes this review non-negotiable.
$2.1M+
Client AR Recovered Since 2023
18
Active Trade Specializations
60 DAYS
Average Onboarding Time
PRICING

FLAT MONTHLY FEE. NO SURPRISES.

Two tiers based on trailing 12-month revenue. No hourly billing. No payroll. No add-ons.

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.

It depends on the work type and region. Slab on grade in commercial construction typically runs $18 to $28 per yard in fully burdened labor. Elevated slabs run $28 to $45. Walls and columns vary significantly by form type and height. The right number is your own historical actual for similar work — not an industry table. Your job history is the most accurate benchmark you have.
Because workers compensation insurance for concrete work runs 18 to 28 percent of wage in most states, and total burden on base wage is typically 40 to 90 percent depending on benefits. A laborer estimated at $30 per hour base may cost $52 fully burdened. On 10,000 labor hours, that $22 gap is $220,000 in unrecovered cost — before any production variance.
CFOS serves commercial subcontractors doing $1M to $12M. Core Financial starts at $1,900 per month. Executive Financial starts at $2,900 per 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.
Josh Luebker
Josh Luebker
Fractional CFO · The Construction CFO

Former commercial construction PM and master electrician. 150+ projects, $300M+ in volume. Now fractional CFO for commercial subcontractors doing $1M–$12M through Sulphur Prairie Management. About Josh →  |  LinkedIn →  |  CONTROL Book →

RELATED
Trade OS
Concrete Operating System
The full CFOS architecture for concrete subcontractors — billing, labor, and margin control
CFOS Module
Job Profitability System
The CFOS module that tracks cost per yard by phase against the estimate in real time
Case Study
$161K to $1.1M Net Profit
How a $4.9M concrete contractor recovered $950K in margin by fixing labor tracking
CFOS SYSTEM CONNECTIONS
SYSTEM SPINE
Run on CFOSJob Profitability SystemConcrete OS
RELATED
Labor ProductivityIndirect LaborOwner Salary in Overhead
PROOF
Concrete Case StudyCivil MCA Case StudyFractional CFO Services

DO YOU KNOW YOUR LABOR COST
PER YARD BY PHASE?

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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.

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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.

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