CIVIL & EARTHWORK CLUSTER · CFOS TRADE OPERATING SYSTEM

WHY EXCAVATION CONTRACTORS LOSE MARGIN WITHOUT KNOWING IT.

QUICK ANSWER

Excavation margin is lost to three specific things: production blindness, the ground lies, and one bucket, one margin. Excavation subcontractors at $1M to $5M run 21 percent gross and 5.5 percent net, against CFOS targets at $1M to $5M of 23.5 percent gross and 10.5 percent net. All three are measurable, and all three are invisible without job costing that reads against the estimate.

Excavation contractors at $1M to $5M net 5.5 percent, rising to 8.5 percent by $25M to $50M; the CFOS target at $1M to $5M is 10.5 percent. The distance between the trade average and the CFOS target comes out of operations in this trade, never out of pricing. It lives in the three mechanisms below, each of which moves margin without appearing as a failure on any single job. Excavation sells cubic yards per hour. When production rates aren't tracked per operator, per machine, per soil class, the estimate and the field never reconcile, and losing jobs look identical to winning ones until the money is gone.

BY JOSH LUEBKERPublished 2026-08-06Updated 2026-08-06
THE THREE BIG LEAKS

THE MATH BEHIND THE MISSING CASH.

LEAK 01

Production Blindness

Excavation sells cubic yards per hour. When production rates aren't tracked per operator, per machine, per soil class, the estimate and the field never reconcile, and losing jobs look identical to winning ones until the money is gone.

LEAK 02

The Ground Lies

Soil class changes, rock shows, groundwater rises, and quantities move; the cost is spent before the change order is signed. A $630K excavation subcontract at the Fifth Circuit proves the fight is real. Documentation and unit-price discipline are the difference between a claim and a donation.

LEAK 03

One Bucket, One Margin

A single utility strike can erase a job's profit through repair bills, fines up to $10,000 for repeats, and GL sublimits that cap below the damage. The locate, the tolerance zone, and the hand-dig are financial controls, not just safety rules. (cfos-cash-control-system) ---

HOW CFOS FIXES IT

WHAT CHANGES IN THE FIRST 60 DAYS.

The net profit question everyone is asking
Utility strikes (the five-figure oops)
Rock, spoil, and the changed-conditions fight
Haul-off and trucking (the profit that leaves by the ton)
Iron economics
EXCAVATION BENCHMARKS
Metric$1M to $5M$5M to $10M$10M to $25M
Gross margin, industry average21%23%24%
Gross margin, CFOS target23.5%25.5%26.5%
Net profit, industry average7%10%12%
Net profit, CFOS target10.5%13.5%15.5%
Overhead, industry average14%13%12%
Overhead, CFOS target13%12%11%

Industry figures are Excavation contractors' AVERAGE for each revenue band, not a floor. The CFOS net profit target is set at 10 percent before taxes or 3.5 points better than your trade's average at your revenue, whichever is higher, and the gross margin target is set at whatever gross margin produces that net profit once your overhead is paid, and never below your trade's own average. Gross minus overhead equals net on every column, so the rows tie out.

HOW THE NET PROFIT FIGURES ARE BUILT

Gross margin and overhead come from figures CFMA, Jones Maresca and other sources publish by trade and size. Net profit is derived from them as gross margin minus overhead, so the three rows tie. That makes it an operating profit figure: what is left before interest, other income and expense, and the tax planning choices owners make, such as bonuses, depreciation methods and retirement contributions.

Surveys report net income before taxes after those items, so a reported net can run below the figure here. At the typical contractor the difference is small: CFMA's 2025 medians are 7.1 percent before interest and taxes and 6.7 percent net income before taxes. It grows with size. Against the separate measured net profit dataset, the calculated net runs 0.8 points higher at $1M to $5M, 2.2 points at $5M to $10M and 3.5 points at $10M to $25M, because the gross margin and overhead rows change faster with size than reported net profit does. The bands above the $10M to $25M band are published at runoncfos.com as a modeled extension of the same curves. They have not been reconciled against the licensed CFMA Benchmarker, and the calculated net there runs well above survey medians, so read them as a model and not as a survey result.

Last 12 months revenueMonthly feeOne-time onboarding
Up to $1M$1,900 to $2,900$1,000
$1M to $3.5M$2,600 to $3,900$1,500
$3.5M to $6.5M$3,800 to $5,700$3,000
$6.5M to $9.5M$5,100 to $7,100$4,500
$9.5M to $12.5M$6,100 to $8,500$6,000
$12.5M to $15.5M$7,400 to $11,000$7,500
$15.5M to $18.5M$9,400 to $13,500$9,000
$18.5M+Quoted individuallyQuoted individually

The onboarding fee covers migrating your books back to the start of your last taxable year and getting you fully operational in 60 days. It's billed once, with your first invoice. It's the same for all three tiers. Your first month is prorated, and your monthly engagement starts on the first of the first full month.

Range reflects the three tiers below. Which one you're in depends on how much of the work you want off your desk. No payroll. No hidden line items. The onboarding fee is right here in the table.

Core

You stop guessing.

You get the CFO work. Job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a meeting every month that ends in decisions and never in a report.

Your bookkeeper still does the books.

Executive

You stop touching the books.

Everything in Core, and we run the bookkeeping and the controllership as well. Your office stops answering coding questions and stops chasing a reconciliation on the last day of the month.

We do the books. No payroll.

Strategic

Every job shows its margin while it's still running.

Everything in Executive, plus the job costing and WIP platform set up, loaded with your cost codes, and managed for you every month. You never have to learn it.

We do the books, the job costing, and the software. No payroll.

What's included
COMMON QUESTIONS

FREQUENTLY ASKED.

Excavation contractors at $1M to $5M in revenue net 5.5 percent on average, rising to 8.5 percent by $25M to $50M. The CFOS target at $1M to $5M is 10.5 percent, and it rises with revenue. The gap usually sits in untracked production rates, haul-off cost drift, and iron that bills nothing. Every net profit figure here is stated before taxes, the same basis CFMA reports on, so the two are directly comparable.
Because the trade pays you last and charges you first. Equipment payments and fuel run daily, trucking subs bill weekly, and the receivable lands 60 to 90 days later, minus retainage. Add one rock surprise or one failed compaction test and the quarter's cash is spoken for.
It turns on the 811 locate and the digging discipline. Skip the locate or dig through the marks and the excavator owns the damage; mismarked lines can shift fault to the utility or locator. Fines start around $2,500 and repeat violations reach $10,000, and many GL policies sublimit underground facility damage below the real repair cost.
Classify soils in the bid, include unit prices for rock and unsuitable material, and tie both to a written changed-conditions clause. The cost of extra spoil gets spent before any dispute resolves; the paper trail is what turns a surprise into a paid change order instead of a donation.
A CAT 330 class machine runs $150 to $200 per hour fully loaded and roughly $200 per day in ownership cost even parked. Every bid needs an ownership-and-operating rate per machine; fuel-and-grease-only rates hand the ownership cost to the owner for free.
About 13 percent of revenue at that size, trending toward 11 percent as revenue grows. For construction as a whole, Jones Maresca and Company's 2025 Performance Benchmarks put total indirect cost at 8 to 15 percent of revenue and CFMA's 2024 Construction Financial Benchmarker reports SG&A at 11.8 percent across all respondents, and both of those are averages rather than an excavation figure. /construction-overhead-rates-by-trade has the excavation rate for your revenue band. Excavation overhead hides in the yard: lowboys, service trucks, mechanics, and the shop all have to be recovered by the working iron.
It depends on machine class, soil, and haul pattern, which is the point: track it per job, per operator, per soil class, and compare against the estimate weekly. Production tracking is the single highest-leverage number in the trade, because everything else prices off it.
A bookkeeper records history. Production-rate pricing, equipment ownership rates, changed-conditions claims, and utility-strike reserves are a control-system problem, which is CFO work. SPM operates that financial control function for excavation contractors. ---
CFOS serves commercial excavation subcontractors doing $1M to $12M. Pricing starts at $1,900 per month for companies under $1M and runs to $13,500 per month at the top published band. Onboarding takes 60 days.
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.
Sixty days. We migrate your books back to the start of your last taxable year, set up ControlQore, and build your job costing structure from scratch. Fully operational in two months.
$10.7M+
Client AR Recovered Since 2023
48
Active Trade Specializations
60 DAYS
Average Onboarding Time
WHAT THIS TIES INTO
Josh Luebker, SPM The Construction CFO
Josh Luebker
FRACTIONAL CFO · SPM THE CONSTRUCTION CFO

Josh Luebker is a master electrician turned construction CFO, president of SPM The Construction CFO and author of CONTROL: The Construction Financial Operating System.

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