What is a healthy backlog coverage ratio?

3 to 6 months for most specialty commercial subcontractors. Lower range for fast-mobilization trades like electrical and drywall. Upper range for civil and underground utility with longer lead times.

Should LOIs and verbal work be included in backlog?

No. Backlog uses signed contracts only. LOIs and verbal commitments overstate coverage and delay the bidding response the real number would have triggered.

What should a subcontractor do when backlog coverage drops below 2 months?

Bid acceleration — prioritize near-term starts and fast-execution scopes. Review outstanding proposals for follow-up. Reach out to top GC relationships. The sub has 30 to 45 days to respond before the cash impact arrives.

FINANCIAL METRICS — BACKLOG

HOW MANY MONTHS OF WORK DO YOU ACTUALLY HAVE SIGNED?

QUICK ANSWER

Backlog coverage ratio is total signed contract value divided by average monthly revenue. A $5M subcontractor with $1.5M in signed backlog has 3.6 months of coverage. Healthy for a fast-bidding specialty sub. Thin for a civil contractor with 90-day mobilization lead times. SPM tracks backlog coverage monthly in the CEO Report — not because more backlog is always better, but because the coverage ratio is the earliest leading indicator of a future cash gap.

3 TO 6 MONTHS IS HEALTHY. BELOW 2 IS A CASH RISK SIGNAL.

BY JOSH LUEBKER Published: June 2026 Updated: June 2026

How to Calculate Backlog Coverage Ratio

Backlog Coverage Ratio = Total Signed Contract Remaining Value ÷ Average Monthly Revenue

Use remaining contract value — not total contract value. Work already billed is not backlog. On a $1.2M contract that is 60% complete, the remaining backlog value is $480K.

<2 Mo.

Thin — Cash Gap Risk in 60–90 Days

2–3 Mo.

Watch Zone — Bidding Priority

3–6 Mo.

Healthy — Standard Range

>6 Mo.

Strong — Watch Crew Capacity

What Backlog Coverage Predicts

BELOW 2 MONTHS: CASH GAP IN 60 TO 90 DAYSWhen backlog coverage drops below 2 months, revenue is about to drop — and overhead isn't. Fixed costs — payroll, insurance, equipment, office — continue at full rate. If new work isn't signed in the next 30 to 45 days, the business will be spending more than it is bringing in within 60 to 90 days. This signal gives the owner time to act. Without tracking it, the cash shortage is the first indicator.

ABOVE 6 MONTHS: CREW CAPACITY RISKHeavy backlog isn't a problem until it exceeds crew capacity. A specialty sub with 7 months of backlog that can only execute 5 months of work with its current crew is either going to slip schedules, hire aggressively, or let relationships deteriorate when it can't start jobs on the promised dates. Backlog coverage above 6 months triggers a crew capacity review.

TRENDING DIRECTION MATTERS AS MUCH AS THE NUMBERA backlog coverage ratio of 3.5 months trending down for 4 consecutive months is a more urgent signal than a 2.5 month ratio that has been stable for a year. The 13-month CEO Report tracking makes the trend visible. A consistently declining ratio is the definition of a pipeline problem developing in slow motion.

BACKLOG RISK IS TRADE-SPECIFIC.

Civil & Sitework

Civil backlog is lumpy — one $2M DOT award can swing the ratio from 1.5 to 4 months overnight. The risk is the gap between awards: bid cycles on public work run 60–120 days from letting to NTP, so a thin backlog today means a revenue hole one quarter out, not next month. Civil contractors need a higher coverage floor — 3 months minimum — because the replenishment cycle is slower.

Concrete & Structural

Concrete backlog burns fast. A $400K pour package that looked like six weeks of work compresses to three when the GC accelerates the schedule. Concrete subs consistently overestimate coverage because they divide backlog by average monthly revenue instead of scheduled burn rate. CFOS tracks both numbers — and the scheduled burn is the one that predicts the gap.

Electrical & Specialty

Electrical backlog has the longest tail — rough-in dollars burn early, trim and closeout dollars sit in backlog for months without producing revenue at the same rate. A $1.8M electrical backlog might only support $150K/month of actual billing in its final phase. Phase-weighted backlog coverage is the only honest version for electrical subs.

T&M-Heavy Trades (Fiber, SWPPP, Service)

T&M trades technically have no backlog — they have client relationships and historical run rates. The coverage equivalent is contracted recurring scope plus trailing 90-day T&M average. A fiber contractor with zero signed contracts but $200K/month of consistent carrier work has coverage — it's just invisible on a traditional backlog report. CFOS builds the T&M version explicitly.

WHAT CHANGES WHEN COVERAGE IS TRACKED MONTHLY.

90 Days

Warning instead of surprise. A $5.2M erosion contractor saw their coverage ratio drop from 3.1 to 1.8 months over one quarter. Because it was on the CEO Report, the owner saw the slide in month one — not when revenue fell. Bidding activity doubled for six weeks and the gap never hit the bank account.

$120K

Overhead decision made on data. A subcontractor carrying a 12-person shop saw coverage fall below 1.5 months. Instead of guessing, the owner used the number: deferred two equipment purchases and slowed one hire until coverage recovered to 2.5. That's roughly $120K of spending timed to the pipeline instead of timed to optimism.

2 Weeks

Bid-no-bid decisions get sharper. With coverage visible, thin months ahead justify chasing work at tighter margins to keep crews busy — and fat coverage justifies walking away from bad-margin work. One client's win rate dropped from 41% to 28% after coverage tracking started. Margin went up. The ratio told them when they could afford to be selective.

Frequently Asked Questions

3 to 6 months for most specialty commercial subcontractors. The lower end of the range is appropriate for subs that can mobilize and execute quickly — electrical, drywall, insulation. The upper end is appropriate for civil and underground utility contractors with longer mobilization lead times and longer project durations.

No. Backlog coverage ratio uses signed contracts only — executed subcontract agreements or executed purchase orders. LOIs and verbal commitments are not backlog. Including them overstates the coverage ratio and can delay the bidding response that the real backlog number would have triggered.

Backlog is tracked as a separate line item in the monthly CEO Report — total remaining signed contract value divided by trailing 3-month average revenue. Tracked 13 months rolling so the trend is visible. A declining trend triggers a conversation about pipeline and bidding priorities in the monthly accountability meeting.

Bid acceleration — prioritize estimating capacity toward near-term starts and fast-execution scopes. Review outstanding proposals for follow-up. Reach out directly to top GC relationships for upcoming work. A sub that knows its backlog coverage is dropping to 2 months has 30 to 45 days to respond before the cash impact arrives. Without the metric, the first response is a reactive cash scramble.

Signed contracts only — with a separate line for verbal awards and pending letters of intent. The coverage ratio's job is to predict revenue you can count on, and a verbal award from a GC is not revenue you can count on. SPM tracks a second number, weighted pipeline, that includes pending work at a probability discount. The two numbers together tell the full story: what's certain and what's likely.

Directly. The backlog burn schedule feeds the revenue line of the 13-week cash forecast. When coverage drops, the forecast shows exactly which weeks the revenue decline hits and whether the working capital reserve absorbs it. A coverage problem identified at month one becomes a managed cash plan instead of a payroll crisis at month three. The two tools are designed to work together — one predicts the gap, the other plans through it.