Commercial Project Benchmarks
Large commercial and GC work is bonding-dependent, PO-driven, and financially complex. Gross margins run 10–20% — the lowest in contracting — and the financial management discipline required to preserve those margins is the entire game.
Key Finding
50 jobs open 90+ days without an invoice — on a single contractor's books
One contractor review found 50 jobs open more than 90 days with no invoice sent. Each represents near-certain revenue leak: work done, costs absorbed, cash not collected. At $20K average project size, that is $1 million in unbilled completed work. The same contractor had 56% of active jobs with no assigned project manager.
In a business running 10–15% gross margins, a 5% revenue leak from unbilled work erases one-third to one-half of your profit.
Commercial Project Benchmark Distribution
Percentile ranges from 2,200+ contractors. Commercial project benchmarks emphasize financial management quality — because at 10–20% margins, operations leaks show up immediately in profitability.
| Metric | Bottom Quartile | Median | Top Quartile | Note |
|---|---|---|---|---|
| Gross Margin | < 8% | 10–15% | 18–20% | Lowest margins in contracting — financial discipline is the edge |
| Jobs Open 90+ Days Without Invoice | 15%+ of open jobs | 5–10% | < 2% | 90+ days open = near-certain revenue leak |
| Jobs With Assigned PM | < 50% | 60–70% | 90%+ | Unmanaged jobs overbill subs, miss change orders |
| WIP Schedule Accuracy | Updated quarterly or less | Updated monthly | Updated weekly | Surety companies underwrite based on WIP quality |
| Vendor Concentration (Top 5) | > 60% of PO spend | 35–45% | < 30% | Concentration is leverage or risk — needs active management |
| Bonding Ratio (Revenue/Working Capital) | > 20:1 | 10:1–15:1 | < 8:1 | Sureties look for clean financials and strong working capital |
What the data tells us
50 jobs open 90+ days, no invoice
One contractor review found 50 jobs open more than 90 days with no invoice sent. Each represents near-certain revenue leak: work done, costs absorbed, cash not collected. At $20K average project size, that is $1M in unbilled completed work.
56% of jobs had no assigned PM
More than half of active commercial jobs in one contractor's system had no named project manager. Unmanaged jobs overbill subs, miss change orders, and close late — each costing 2–5 points of margin from a pool that starts at 10–20%.
$39.3M PO spend — top 5 vendors = 38.55%
Vendor concentration data from one commercial contractor: $39.3M in annual PO spend with the top 5 vendors representing 38.55%. Most contractors have no formal vendor review process and leave 3–8% in rebates and terms improvements on the table.
Bonding capacity is a financial statement problem
Surety companies bond based on working capital, net worth, and WIP accuracy — all financial statement quality metrics. Contractors who can't produce clean, current financials are bonding capacity-constrained and locked out of the largest commercial projects.
Frequently Asked Questions
What is a good gross margin for commercial construction projects?
The median gross margin for commercial projects is 10–15%, with the top quartile reaching 18–20%. These are the lowest margins in contracting. Financial management discipline — WIP accuracy, PO controls, PM assignment — is the primary differentiator, not sales volume.
How does bonding capacity affect commercial contractors?
Surety companies set bonding limits based on working capital, net worth, and WIP schedule accuracy. A contractor with a 20:1 revenue-to-working-capital ratio is over-leveraged. Top quartile contractors maintain ratios below 8:1, giving them access to larger projects. Clean, timely financials are a prerequisite.
What is a good WIP schedule update frequency?
Top quartile commercial contractors update their WIP schedule weekly. The median updates monthly. Bottom quartile updates quarterly or less. Surety companies underwrite based on WIP quality — weekly updates catch cost overruns before they erode the entire project margin.
How does vendor concentration affect commercial contractors?
Data from one commercial contractor showed $39.3M in annual PO spend with the top 5 vendors representing 38.55%. Concentration above 60% in top-5 vendors creates supply chain risk. Most contractors have no formal vendor review and leave 3–8% in potential rebates and payment term improvements uncaptured.
What's leaking from your commercial book?
We'll audit your open jobs, WIP schedule, PO concentration, and bonding position and benchmark you against commercial contractors nationally. 15-minute call. Free.