What Happens at Port of Montreal When Your Container Arrives
When a container hits Port of Montreal, the clock starts immediately. The terminal operator begins counting detention from the moment the vessel is discharged, not from when you pick it up. Most importers don't grasp this distinction — they think detention starts when they call for drayage. It doesn't. By the time your broker files the CAD (Commercial Accounting Declaration) and CBSA issues the PARS release, you may have already burned through a chunk of free time.
Port of Montreal moves roughly 1.3 million TEU annually, making it one of North America's busiest container gateways. That volume means gate congestion is constant, especially Q4. The port operates with published free-time policies and gate hours, but the real constraint isn't the policy — it's the drayage window. Your broker has a clear release. Your drayage window, though, is narrow. A Q4 dwell that starts on a Tuesday may not clear until Friday because available drayage slots are stacked three to five days out.
Detention charges don't care about your drayage booking preference. CBSA clearance delays push that window further out, and the port's detention meter keeps running. We've seen containers arrive Monday, sit unclearable until Thursday (CAD query hold or additional documentation), then face a drayage shortage because every drayage slot through Friday is sold. The importer absorbs both the CBSA delay and the port detention for three extra days.
PARS Release Timing Is the Linchpin
The PARS (Pre-Arrival Review System) release from your broker is supposed to mean customs clearance is approved. But the definition of "move" is vague. A PARS release means clearance is approved. It does not mean drayage is available, your warehouse has dock-door space, or the port isn't congested.
Brokers file CADs and chase releases like it's the only constraint. It is not. We run our dock-to-stock SLA at 48 hours from PARS release to cargo sitting in our racking. That assumes drayage arrives within 24 hours of release. If drayage doesn't show for two days, that 48-hour window evaporates. The cargo is our responsibility. Detention fees are the importer's. But the importer calls us asking why we haven't started putaway. Putaway can't start until the goods are physically here.
In Q4, PARS releases are common by EOD the day after arrival. The port's detention timer is already 36 hours in. Drayage availability drops off a cliff. The math is simple: release Thursday evening, drayage Saturday earliest, detention charges Friday and Saturday, and you're paying for two days of port detention plus drayage premium rates because you're booking last-minute.
The Detention-Drayage Cascade
Port detention isn't a line-item fee that haplessly accumulates. It changes behavior upstream. When detention starts accruing visibly (usually after free time expires, which varies by terminal and cargo type), importers panic. Panic triggers last-minute drayage calls. Last-minute drayage calls bump into congestion, raising rates.
We see drayage premiums spike in Q4 because every container is urgent by the time detention is evident. An importer who booked drayage confidently on day one pays the standard rate. An importer who waits to see if customs will flag the container, then books drayage on day three, pays 15–25% over baseline because it's short-notice. That premium is the cost of uncertainty, not the cost of the drayage itself.
Port detention also bleeds into warehouse handling. If a container arrives at our dock at 2 PM on a Friday (because that's the only drayage slot available due to port congestion and clearance delay), and it's a full 40-foot container that needs break-bulk and putaway, we may not finish until Monday. The importer paid detention for four calendar days at the port. They're now paying our in/out handling ($40+ per skid) to move cargo to racking, plus a weekend overtime premium if the importer needs it expedited to outbound. The real cost of that port detention is not just the detention invoice — it's the cascade of premiums and handling that follows.
Cross-Dock as the Detention Escape Valve
When port detention is expensive and drayage is tight, cross-dock looks attractive. Instead of paying us to receive, putaway, and hold inventory in a sufferance warehouse, the importer says, "Land the container at our cross-dock, break it down, and ship directly to the end customer." Cross-dock skips the "hold" cost and the warehouse per-skid rate. But it only works if the outbound window is tight and there's no re-consolidation needed.
Cross-dock timing is rigid. If the port releases the container Thursday evening and drayage is Saturday afternoon, and outbound is scheduled for Monday morning, you have a 48-hour window to break the container, sort SKUs, and consolidate for final delivery. That's feasible for some shipments. For others, particularly when the customer needs pallets for their own cross-dock, the 48-hour window is fantasy. You end up warehousing it for a few days anyway, defeating the cross-dock logic.
From a dock standpoint, cross-dock is usually just "unload faster, then reload." It's not cheaper. The cost advantage only materializes if you genuinely avoid warehouse dwell. Most Q4 cross-dock attempts fail because drayage was late, documentation was incomplete, or the customer wasn't ready for Monday delivery. The importer absorbs both the port detention for waiting and now a warehouse in/out fee at the cross-dock facility because the cargo couldn't leave on schedule.
Where the Real Pressure Points Sit
The biggest cost leaks we see in Q4 container handling are not dock-door fees or racking density — they're detention and drayage premiums born from poor upfront planning. An importer who books drayage speculatively (two days after a vessel announcement, before the container even arrives) locks in baseline rates and avoids the Q4 premium. An importer who waits for customs clearance before booking pays 25% more for the same mile of trucking, plus the detention invoice.
This is not a broker problem. The broker's job is to clear the cargo. What happens next — drayage timing, detention accrual, warehouse utilization — is the importer's and the 3PL's problem. The importer doesn't think about it. The 3PL (that's us) can't solve it without a clear communication from the importer about when they expect to use the cargo.
Some importers build buffer time into their port planning. They know Q4 means six to eight days of dwell is normal, so they book drayage for day six and accept that detention will run. They add detention into their landed cost upfront and move on. Other importers assume a three-day cycle (arrival, clearance, drayage, warehouse), and they're shocked when port and broker delays conspire to make it eight days. By then, detention is real, drayage is premium, and the warehouse has dock pressure because three other containers are queued behind theirs.
Port of Montreal drayage coordination is where FENGYE Logistics sits in the middle. We're the dock door, the drayage dispatcher, and the warehouse all in one conversation. When detention starts, we know it before the importer files a complaint. When drayage has no availability, we can offer a cross-dock alternative or negotiate a later dock window. When clearance is delayed, we can stagger putaway and free up inbound space for the next container. But all of that only works if the importer has told us their true timeline upfront — not after the container has landed and the math has gone sideways.
The Operational Play
If you're running freight through Montreal, the operational reality is this: assume Q4 dwell will be longer than you estimated. Build six to eight days into your cost model, not three to four. Book drayage before the vessel arrives, not after the container is cleared. If you can't commit to a pickup date that early, absorb the detention as a sunk cost — don't treat it as an emergency that justifies premium drayage and expedited warehouse handling.
For goods bound for short-term warehouse storage or consolidation, the detention math includes one more variable: your outbound window. If you're consolidating a 40-foot container into LCL (less-than-container-load) shipments to three different customers on three different dates, warehouse dwell compounds the port detention cost. The container sits in-bond, taking up racking and dock space, until the last customer's shipment goes out. That dwell doesn't just cost racking fees — it costs priority and opportunity. If a lower-priority container arrives mid-dwell, you can't touch it without disrupting the primary consolidation.
The win is planning backward from the customer's need date. If the customer needs delivery by December 20, and your supply chain is Montreal port to consolidation to final delivery, the port arrival has to happen by December 12, not December 15. That backward math drives drayage timing, which drives detention costs, which drives warehouse sequencing.
Related: Port of Montreal container handling: getting drayage to d...
Related: Port of Montreal Container Handling: Drayage, Dock Doors,...
Related: Port of Montreal Container Handling: What Forwarders Need...
The Economics in Context
Port of Montreal's role in your total landed cost is not its terminal fees. Those are fixed and modest. The role is detention-driven urgency. Detention creates drayage urgency. Drayage urgency creates premium rates. Premium rates on a 40-foot container can run an extra CAD 800–1,500 over baseline in Q4, depending on distance and timing pressure. A container that dwells five days longer than expected costs detention (importer pays the port) plus the warehouse space and handling (importer pays the 3PL) plus potentially a drayage premium (importer pays the carrier).
That total can easily exceed CAD 3,000 on a single container. Multiply that by a weekly import schedule during Q4, and you're looking at supply-chain cost variability that dwarfs the negotiation over a 2% reefer surcharge or a $5/skid handling discount.
FENGYE LOGISTICS sees this math play out every week. The containers that move cleanly are the ones where the importer decided upfront, "This is Q4, detention will run, I'm budgeting for it, and I'm booking drayage without waiting for perfect clearance timing." The containers that create chaos are the ones where the importer thought they'd do a standard three-day cycle and are now shocked to be day six without outbound arranged. Port of Montreal's role ends at the dock door. Ours begins there. When you're planning your Q4 imports, call drayage and the warehouse before the container arrives — not after it's flagged for detention. That one decision collapses half the cost surprises.
Originally published at https://www.fywarehouse.com/news/port-of-montreal-container-handling-when-detention-drives-drayage-costs-ef85224e.
