Drayage margins are razor-thin, and most operators don't know which loads are actually profitable. Tracking the right metrics separates thriving operations from those stuck in the break-even cycle. Here's what to measure—and how to act on it.
Cost Per Mile vs. Revenue Per Mile
This is your baseline. Calculate total operating costs (fuel, labor, maintenance, insurance, permits) divided by miles driven monthly. Compare that to revenue per mile. Most drayage operators run $2.50–$4.00 in costs per mile. If your revenue per mile falls below that, you're losing money before profit.
Track this weekly, not quarterly. Set up a simple spreadsheet or use transportation management software (TMS) to flag lanes or customers where revenue per mile consistently underperforms. A single lane paying $1.80 per mile will sink profitability faster than you think.
Port Dwell Time and Detention Costs
Port detention—sitting idle while waiting for containers to load or unload—is silent profit drain. The average U.S. port charges $25–$75 per day in detention fees after the free period (usually 3–5 days). Some high-volume ports like LA/Long Beach hit $150+ daily.
Track average dwell time by port and shipper. If a customer's containers regularly spend 7+ days at the terminal, you're absorbing $150–$300 in fees per container. That's a conversation starter with that customer about expediting releases—or raising rates.
Empty Miles Ratio
Empty miles (bobtail or repositioning) are pure cost with zero revenue. Industry standard is keeping empty miles below 25% of total miles. Every extra percentage point above that cuts into profit.
Calculate this monthly: (empty miles / total miles) × 100. If you're running 30% empty, a 500-mile monthly increase in empty deadhead costs roughly $250–$400 in fuel and wear alone. Focus on:
- Load-matching software to find backhauls
- Partnerships with freight brokers for return loads
- Regional networks with shippers for balanced lanes
Revenue Per Container Move
Breaking profitability down to per-container basis clarifies what you actually make. Drayage rates typically range $150–$400 per container move depending on distance and port, but your net profit after all costs should be $25–$75 per container.
Track revenue per move by:
- Lane (LA to warehouse in Ontario vs. LA to Riverside)
- Customer segment (major shipper vs. small importer)
- Time of day (night moves often command premiums; factor in night labor surcharges)
A premium account paying $350 per move might net you $60. A discount rate at $180 per move nets $10. Volume matters, but margin variance tells the real story.
Customer Concentration Risk
If one shipper represents more than 15% of your revenue, you're exposed. That customer can demand rate cuts or walk. Track your top 10 customers as a percentage of total revenue. Anything over 50% combined means you need to actively acquire new accounts.
Building a diversified customer base takes time—typically 6–12 months to replace a major account—so start now.
On-Time Performance and Ancillary Costs
Late deliveries trigger detention, failed appointments, and rate penalties from shippers (often $100–$500 per incident). Measure on-time delivery percentage. Most shippers expect 98%+ compliance.
Late moves also cascade: a missed 2 p.m. drop-off at a warehouse means the container sits another day, and you often eat the cost through failed appointment fees.
Fuel Surcharge Pass-Through
Fuel volatility is real. Many operators negotiate fuel surcharges with customers, but don't consistently apply them. If diesel is at $3.50/gallon, you should be capturing that in rates or surcharges. Calculate fuel as a percentage of revenue—it should typically be 18–25%.
If you're not passing surcharges through, rising fuel costs directly crush margins.
Action Steps
Set up a simple dashboard tracking these six metrics weekly. Most drayage operations run lean, so automation via TMS or even Airtable saves hours. Identify your worst-performing 20% of loads and either raise rates, renegotiate terms, or walk.
Listing your services on Mercoly helps attract qualified shippers looking for reliable drayage providers, turning metric analysis into new customer wins.
Frequently Asked Questions
Q: What's a realistic net profit margin for drayage operations? Most drayage operators target 8–12% net profit after all expenses. Anything below 5% indicates pricing or cost control issues that need immediate attention.
Q: Should I use a TMS, or is spreadsheet tracking enough? Spreadsheets work for under 50 trucks, but any larger operation loses visibility fast. Basic TMS solutions (Samsara, Verizon Connect, even Zonar) cost $100–$300/truck monthly and pay for themselves in margin recovery.
Q: How do I compete if my rates are higher than discount carriers? Lead with reliability metrics: on-time percentage, damage rates, and specialized services (hazmat, refrigerated). Shippers pay premiums for consistency and reduced risk—document yours.
Start measuring this week, and revisit your customer and lane mix in 30 days.