TL; DR
Every trailer in your fleet costs $900–$2,000+/month whether it moves or not. Most fleets believe they’re running at 80–85% utilization. The data usually tells a different story.
In this post: what trailer utilization actually means, why the gap between perceived and real utilization costs fleets hundreds of thousands per month, and the three decisions operations leaders make once they have accurate data.
Key takeaways:
- A dry van trailer costs $900–$2,000+ per month in combined lease, insurance, maintenance, tires, licensing, and storage — whether it generates revenue or not.
- Underutilization is almost always a visibility problem — you can’t manage what you can’t track.
- The right data leads to three decisions: retire idle assets, cancel unnecessary orders, or put dormant trailers back to work.
The Question Nobody Can Quite Answer
It comes up in nearly every operations meeting, usually on a Monday morning when someone is staring at a dispatch board or a lease renewal deadline:
“Do we have the right number of trailers? Are we carrying too many — or do we actually need more?”
It sounds like a straightforward operational question. In practice, it’s one of the most expensive ones a fleet can fail to answer accurately.
For most carriers, the honest answer is: we’re not entirely sure. And that uncertainty has a cost that shows up every single month, whether a trailer is moving or not.
What Utilization Actually Means
Trailer utilization, at its core, is a simple question: are you actually using the assets you’re paying for?
How companies measure it varies. Some track movement — is this trailer pulling loads or sitting idle? Others set a mileage threshold. One carrier we work with defines a trailer as “utilized” only if it exceeds 2,500 miles in a given month. Anything under that and it’s not earning its keep.
There’s also the truck-to-trailer ratio — how many trailers exist in your fleet for every active tractor. That ratio can range from 1:2 to 1:10 depending on your operation. A drop-and-hook heavy carrier needs more trailers in rotation. But at a certain point, the ratio stops supporting operations and starts draining the budget.
Whatever metric you use, the goal is the same: make sure every trailer in your fleet is working hard enough to justify the cost of keeping it.
The Cost You’re Probably Not Tracking
Here’s where most conversations about utilization break down. Companies think about trailers as a capital investment, not an ongoing expense. But every trailer in your fleet carries a monthly cost regardless of whether it ever touches a load:
- Lease or finance payment: $400 – $900+
- Depreciation / capital allocation (owned): $300 – $600
- Insurance (physical damage + cargo): $60 – $200
- Maintenance & repairs: $80 – $250
- Tire allocation: $50 – $150
- Licensing / permits / registration (annualized): $10 – $50
- Trailer yard / storage costs: $0 – $100+ (if applicable)
That adds up to roughly $900 to $2,000+ per trailer, per month. For a trailer pulling loads and generating revenue, that’s a reasonable cost of doing business. For a trailer sitting idle at the back of a terminal — or parked at a customer yard well past its return date — it’s pure, unrecovered cost.
Now scale it. If you’re running a fleet of 1,000 trailers and 20% are sitting idle, that’s 200 units costing you anywhere from $180,000 to $400,000 per month — with nothing to show for it on the revenue side.
Why the Number Is Almost Always Worse Than You Think
Most operations leaders, when asked to estimate their utilization, land somewhere between 80 and 90 percent. It feels right based on what they’re seeing day-to-day.
The data often tells a different story.
There are a few reasons the real number tends to be lower than expected. Trailers get dropped at customer yards and linger well past their contracted window — sometimes because there’s no mechanism to flag it, sometimes because nobody wants to strain the customer relationship by pushing back. In large terminal yards, trailers at the back of a lot get lost in rotation. The ones closest to the gate move constantly; the ones further back can sit for months without anyone noticing.
There’s also the maintenance shop problem. A trailer goes in for a repair and stays for three weeks. It’s technically “in service” but completely unavailable and still costing money.
All of these scenarios have one thing in common: they’re invisible without accurate location and movement data on every asset.
The Three Decisions That Change the Math
When operations leaders get reliable utilization data for the first time, it tends to surface three clear opportunities:
- Retire trailers that aren’t earning their keep. Trailers with consistent low or zero movement can be flagged for retirement, reducing fleet cost without impacting operational capacity.
- Cancel or defer new trailer orders. If you already have hundreds of idle assets, signing a contract for 100 new units doesn’t solve a capacity problem — it adds to an existing cost.
- Put idle trailers back to work. Identifying dormant assets isn’t just about cutting — it’s also an opportunity to add load and turn a cost center into a revenue generator.
The carriers who act on this data don’t just reduce cost. Some reduce their fleet size and grow their business at the same time — because right-sizing creates operational clarity that was buried under excess assets.
The Real Issue: Insight, Not Inventory
The real issue isn’t the number of trailers — it’s the lack of insight into how well the existing fleet is being used. Trailers sit at customer yards, dwell times creep up, and assets go idle without anyone noticing until it becomes a service problem.
This uncertainty leads to:
- Overbuying trailers to “play it safe”
- Chronic dwell at customer sites
- Poor circulation across the network
- Hidden costs in maintenance, storage, and capital
The Shift: From Guessing to Knowing
TGI Connect’s Utilization Reports give fleets the visibility they’ve been missing. Instead of relying on gut feel or outdated spreadsheets, managers get data-driven answers to the questions that matter:
- How many trailers are actually turning each week?
- Which customers are driving excessive dwell time?
- Where are underutilized or idle trailers sitting?
- How many trailers do we really need to support demand?
The Payoff: Fewer Unnecessary Trailers, Better Service
Most fleets discover they don’t need more trailers — they need better utilization. With TGI Connect’s Utilization Reports, companies typically uncover:
- 10–25% of their fleet sitting idle
- Chronic dwell issues at specific customers
- Opportunities to reduce capital spend
- Ways to improve on-time performance without adding equipment
Better visibility means better decisions — and fewer unnecessary trailers.
Frequently Asked Questions
What is trailer utilization?
Trailer utilization measures whether your fleet assets are actively working or sitting idle. At its simplest: are your trailers moving loads and generating revenue, or are they parked somewhere costing you money? Different carriers define it differently — some track physical movement, others use a mileage threshold, and some measure whether trailers assigned for temporary storage are actually being used for that purpose.
How do I know if my fleet is underutilized?
The most reliable way is through trailer tracking data — specifically utilization reports that show movement patterns across your entire fleet, dormancy reports that flag trailers with no activity over a set period, and dwell reports that surface assets sitting at customer locations or terminals beyond expected windows. Without that data, most fleets rely on gut instinct, which tends to significantly overestimate how well-utilized the fleet actually is.
What is a truck-to-trailer ratio and why does it matter?
The truck-to-trailer ratio tells you how many trailers exist in your fleet for every active tractor. A 1:5 ratio means one truck services five trailers; a 1:10 ratio means ten. Carriers that rely on drop-and-hook operations naturally carry higher ratios. The key is making sure your ratio reflects operational need — not historical habit or accumulated assets that were never retired. Utilization data helps you identify the right ratio for your specific operation and flag when you’ve drifted past it.
How does customer dwell time affect utilization?
Significantly. When a customer holds a trailer beyond their contracted window — using it as overflow storage, for example — that trailer is unavailable for loads and still costs you money every month. In some fleets, one or two large customers can quietly hold 20–30% of total assets well past their return date. Dwell reporting, backed by geo-fenced location data, gives you the date- and time-stamped evidence needed to enforce contracts, bill for detention, and recover those assets.
What is a dormancy report?
A dormancy report surfaces trailers that have recorded zero movement over a defined period — typically 30, 60, or 90 days. It’s one of the most actionable utilization tools because it identifies exactly which assets are contributing nothing to your operation. For large fleets with assets spread across multiple terminals, dormancy reports are often where the biggest surprises — and the biggest savings opportunities — are found.
Can improving utilization actually help grow my business?
Yes — and that’s often the unexpected result. Right-sizing a fleet isn’t just about cutting cost. Removing excess assets creates clearer visibility into what’s actually available, reduces yard congestion, and frees up capital that can be reinvested elsewhere. Carriers who have retired underperforming trailers based on utilization data have, in some cases, reduced their fleet size while simultaneously growing their business — because operational clarity makes it easier to scale efficiently rather than just add more assets.
About TGI Connect
Welcome to TGI Connect, the trusted leader in trailer tracking and asset management solutions for the transportation and logistics industry, in business since 1992. We specialize in trailer tracking, helping fleets maximize efficiency, visibility, and cost savings with our cutting-edge satellite tracking technology.
Our extended coverage footprint and state-of-the-art satellite connectivity ensure real-time trailer tracking, automated reporting, and seamless data integration, reducing downtime and boosting revenue opportunities. Backed by a dedicated customer service team, we provide proactive account management and a proven track record of reliability, trust, and customer satisfaction.
Partner with TGI Connect to optimize your trailer fleet operations, enhance trailer utilization, and stay ahead in today’s competitive transportation industry. For more information visit www.tgi-connect.com.
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