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CIVIL CLUSTER · C.F.O.S EXECUTION LAYER

WHY EXCAVATION CONTRACTORS RUN OUT OF CASH.

QUICK ANSWER

Excavation contractors run out of cash because structural and mass excavation rates get blended together, hiding which type of work is actually costing more. Equipment idle time during site access delays goes unbilled, and backfill and compaction costs get lumped into the excavation rate instead of tracked as their own cost code.

Excavation work splits into two fundamentally different cost structures, mass excavation and structural excavation, but most contractors price and track both under one blended rate. Structural excavation requires tighter tolerances and often hand work at the edges, costing meaningfully more per cubic yard than open mass excavation. When both are blended, net margin quietly absorbs the difference, and equipment standby during access delays compounds the problem with no billing mechanism to recover it.

BY JOSH LUEBKER Published: Jul 2026 Updated: Jul 2026
THE FAILURE MODE

WHERE THE MONEY GOES.

Excavation is not civil work. Excavation is bulk earthmoving to reach subgrade or install below-grade elements, a narrower production discipline; civil covers broader earthwork and infrastructure production across a wider range of unit types and equipment classes.

Excavation contractors move material at a cost per unit, but that unit cost varies enormously depending on whether the work is mass excavation, open cuts with large equipment, or structural excavation, tighter foundation and utility trench work requiring more careful operation and often hand finishing.

Most bids and most job costing blend the two into one rate, which means a job with a heavier structural excavation component costs more than the blended rate assumes, and that gap erodes margin silently across the job.

The consequence chain: blended rates hide the true cost mix · structural-heavy jobs cost more than billed · equipment standby during access delays adds further unbilled cost · backfill and compaction get lumped into the same blended number · by closeout, the job's real cost structure bears little resemblance to what was tracked along the way.

Gross Margin ($1M–$5M)
21%
CFOS target: 22–30%
Overhead Rate ($1M–$5M)
14%
CFOS target: 9–13%
Net Margin ($1M–$5M)
5.5%
CFOS target: 12%
3 REASONS YOUR CASH IS GONE

THE THREE MECHANISMS.

MECHANISM 1

STRUCTURAL AND MASS EXCAVATION RATES BLENDED

Structural excavation, tighter tolerances, careful equipment operation, hand work at edges, costs significantly more per cubic yard than open mass excavation. When both are priced and tracked under one blended rate, a job with more structural work than assumed costs more than the rate recovers, and nothing flags the mismatch until closeout.

MECHANISM 2

EQUIPMENT IDLE COST WHEN SITE ACCESS IS DELAYED

When site access is delayed, permits, utility conflicts, other trades not yet clear, excavation equipment sits idle. That standby cost is real but rarely tracked as its own billable-adjacent cost code, so it gets absorbed into general overhead instead of recovered or even visibly counted.

MECHANISM 3

BACKFILL AND COMPACTION LUMPED INTO EXCAVATION RATE

Backfill and compaction are distinct cost activities with their own equipment and labor requirements, but they're frequently tracked as part of the general excavation rate rather than their own cost code, which means their specific cost drivers, compaction testing failures, material import costs, stay invisible.

WHERE CONTRACTORS GET MISLED

THE MISDIAGNOSIS.

Owners blame: "We must have underbid the excavation."
What's actually happening: The blended rate was often reasonable for the assumed mix of mass and structural work. The real issue is the actual mix ran more structural than assumed, and nothing tracked that shift until the job was done.

Owners blame: "Equipment costs just ran high on this job."
What's actually happening: Idle time during access delays is a specific, trackable cost, not general equipment overhead. Left untracked, it looks like an equipment cost problem instead of the standby issue it actually is.

Owners blame: "Backfill just costs what it costs."
What's actually happening: Backfill and compaction have their own cost drivers, material import, compaction testing and rework, that are invisible when lumped into the general excavation rate.

HOW C.F.O.S FIXES IT

THE FIX.

C.F.O.S is the financial operating system built around excavation's specific cash failure patterns · blended structural and mass excavation rates, unbilled equipment standby during access delays, and backfill and compaction costs hidden inside the general rate. Without this system running every month, structural-heavy jobs quietly cost more than the blended rate recovers, standby time erodes margin with no visibility, and backfill cost drivers stay hidden until closeout. This is C.F.O.S executing inside the civil cluster · every deliverable specific to excavation, monthly, and connected to the other five layers of the system.

Structural and mass excavation tracked as separate cost codes with separate unit rates
Equipment standby during access delays tracked as its own cost code, flagged the week it happens
Backfill and compaction cost codes separated from general excavation, tracking material and compaction cost specifically
Weekly cost-to-complete tracked by excavation type, compared against the bid rate for that specific type
13-week cash flow forecast that accounts for standby risk on jobs with known access constraints
Change order documentation triggered when structural excavation volume exceeds the bid assumption
PRICING

FLAT MONTHLY FEE. NO SURPRISES.

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

Revenue (Trailing 12 Months)Monthly Fee
Under $1M$1,900 – $2,900
$1M–$3M$2,600 – $3,900
$4M–$6M$3,800 – $5,700
$7M–$9M$5,100 – $6,900
$10M–$12M$6,100 – $8,500
$13M+Quoted

Range reflects three service tiers (Core Financial, Executive Financial, Strategic Financial) · scope and fee within each band depend on which tier fits your business. Strategic Financial includes ControlQore job costing and WIP software at no added cost. SPM does not handle payroll.

What's Included →
COMMON QUESTIONS

FREQUENTLY ASKED.

Structural and mass excavation get priced and tracked under one blended rate, even though structural excavation costs meaningfully more per unit. Equipment standby during site access delays goes unbilled and untracked, and backfill and compaction costs get lumped into the general excavation rate instead of their own cost code, hiding their specific cost drivers.
CFOS separates structural and mass excavation into their own cost codes with distinct rates, tracks equipment standby during access delays as its own cost code, separates backfill and compaction cost tracking from the general excavation rate, and runs weekly cost-to-complete by excavation type against the bid.
CFOS serves commercial excavation subcontractors subcontractors doing $1M–$12M. Monthly fees run $1,900 to $8,500 depending on revenue and which of the three service tiers fits your business (Core Financial, Executive Financial, or Strategic Financial). Onboarding takes 60 days.
Core Financial covers CFO advisory only: monthly check-ins, a rolling cash flow forecast, WIP reporting on request, and estimating review. Executive Financial adds full-service bookkeeping, bank reconciliations, and controllership. Strategic Financial adds ControlQore job costing and WIP software, set up and managed for you at no added cost. No payroll processing at any tier. No scope gaps between services.
60 days. We migrate your books to the start of your last taxable year, build your job costing structure around your estimates, and get your first WIP schedule and cash flow forecast running. 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 $2.1B+ in combined volume across 24 trade specializations, with individual jobs ranging $50K–$300M. Now fractional CFO for commercial subcontractors doing $1M–$12M through Sulphur Prairie Management. About Josh →  |  LinkedIn →

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 for excavation subcontractors
CFOS Module
Job Profitability System
Why excavation subcontractors jobs look profitable but lose money · how CFOS shows you the truth
$2.1B+
Combined Client Project Volume
24
Active Trade Specializations
60 DAYS
Average Onboarding Time
SYSTEM CONNECTIONS
CFOS SPINE + MODULES
Run on CFOS · Full System Index Job Profitability System Cash Control System Trade Benchmarking System
RELATED TRADE OS
Civil Grading Demolition
SERVICE LAYER
Fractional CFO for Construction Construction Bookkeeping Construction Controllership

THE GAP DOESN'T CLOSE
WITHOUT THE SYSTEM.

You cannot self-assemble a fix from knowing the problem. The financial system has to be built, run monthly, and connected to the other five layers of C.F.O.S · or the blended rate mismatch, unbilled standby, and hidden backfill cost drivers keeps compounding every job. Let's show you what that system looks like built around your excavation subcontractors business.

BOOK A FREE 30-MIN DIAGNOSTIC →

30 minutes. Free. No sales pressure. We'll tell you exactly what's broken before we talk about anything else.

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

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 CONTROL Book →
© 2026 SULPHUR PRAIRIE MANAGEMENT · SULPHUR ROCK, AR