Open deck out of Calgary, planned around the season.

Open deck is a family of trailers, and in Alberta the choice is made against a taller legal ceiling than most of the continent allows. Four point one five metres is roughly 13 feet 7 inches of total loaded height measured from the ground. A standard flatbed puts its deck around 5 feet up, which leaves something in the order of 8 feet 7 inches of usable cargo height before a permit enters the conversation. That is enough for most palletised and packaged freight and for a great deal of structural steel, and it is why so much Alberta freight moves on a plain deck that would need a step in a lower-ceiling jurisdiction.

A step-deck drops the main deck to roughly 3 feet 6 inches and buys back about 18 inches of cargo height. In practice it is the trailer for equipment, tanks, skids and anything with a fixed vertical dimension a flatbed cannot absorb. Double-drop and removable gooseneck trailers go lower again, with a well sitting close to 2 feet, and they exist for the loads that defeat a step-deck outright. An RGN adds the ability to roll or drive the load on at deck level, which matters for tracked and wheeled equipment where crane time is the expensive part of the move.

The wrong deck is expensive in a specific way. It is not discovered when the rate is agreed. It is discovered when the load is measured at the shipper and the truck cannot legally carry it. The load then waits for correct equipment, the shipper loses a loading slot, and the corrected move usually prices worse than booking properly would have. Confirming actual loaded height against the specific deck before dispatch removes almost all of that risk, and it takes one measurement.

Alberta manages what its roads carry through the year rather than assuming a single limit. During spring thaw the province reduces allowable carrying-axle weight to 90, 75 or 50 percent on affected highway segments. Those reductions are not scheduled in advance. They are triggered by measured frost depth, read at roughly 70 probe stations across the province, and they come off in stages as the road recovers, with the post-thaw position generally settled by the middle of June, summer weights following at the start of July and fall weights from the beginning of September.

Winter works the other way. Once frost depth reaches around 75 centimetres the road carries more than it does in summer, and winter weights are allowed on qualifying routes. For heavy open deck this is a genuine planning tool. A module or a vessel that needs a permit and possibly a split in April can move as a single legal load in January. Shippers able to flex their schedule against that window save real money, and the saving grows with the weight of the freight.

The practical consequence for a flatbed booking is that the weight you can carry depends on the date and on the specific highways in the routing, not on a general Alberta number. Counties and municipal districts publish their own restrictions for local roads on top of the provincial list, which matters because the final kilometres into a plant, a fabrication yard or a lease road are usually exactly those roads. We read both before quoting a weight.

A load is oversize in Alberta once it exceeds 4.15 m in height or 2.6 m in width, and overweight once it exceeds the axle weights allowed on that route at that time of year. Permits are issued through TRAVIS Web, through accredited TRAVIS agents or through the Central Permit Office, and the application needs real numbers: dimensions as loaded, axle spacings and weights, the origin and destination and the intended route.

What shippers underestimate is that a permit is a set of conditions rather than a piece of paper. It names a route, and the named route is not always the shortest one. It sets travel windows, which can exclude peak hours, night movement or weekends depending on the dimension. It may require signage, flags, lights or one or more pilot vehicles, and above certain dimensions it may require a route survey to confirm clearances and turning geometry before the load moves at all.

That is why the permit has to lead the plan. Booking a truck for Tuesday and applying for the permit afterwards produces a truck sitting under load on Tuesday while conditions are still being confirmed. Establishing the dimensions, running the permit and then dispatching against the approved route and window is slower to start and materially faster to finish. It is the sequence we hold to.

Calgary sits where two national routes meet a north-south trade corridor, and Stoney Trail now closes the ring around the city. The final segment opened in December 2023, completing a 101 kilometre ring the province describes as a commercial goods route around Calgary. For open deck that removed a real problem: an oversize load no longer has to negotiate urban intersections and overhead structures to cross the city on its way through.

Northbound the freight is energy and industrial. Edmonton, the Industrial Heartland, Fort McMurray and the service centres that supply them take modules, vessels, structural steel and packaged equipment on step-decks and double-drops. Westbound is British Columbia and the Port of Vancouver, across mountain highways with their winter equipment requirements. Southbound is Coutts and the United States. Eastbound is Saskatchewan, Manitoba and the long haul to Ontario, where the move becomes a truckload question as much as an open deck one.

Rail sits alongside all of it. CPKC operates Alyth Yard on 168 acres southeast of downtown, its busiest yard in Western Canada, with satellite operations at Ogden Park and the Calgary Intermodal Facility at Shepard. CN runs the Calgary Logistics Park at Conrich, a 680 acre site whose intermodal terminal opened in 2013 near the junction of Stoney Trail and the Trans-Canada. The relevance for open deck is straightforward: some heavy and oversize freight is better on rail for the line haul and on a deck only for the first and last legs, and that question is worth asking before defaulting to one truck the whole way.

Securement is regulated, and the regulation is commodity-specific rather than general. Steel coils, pipe, structural sections, concrete products, machinery and packaged equipment each have their own rules for tie-down count, working load limit, blocking, dunnage and edge protection. A carrier that hauls one of them weekly arrives with the right chains, binders, corner protectors and cribbing already on the trailer. A carrier that does not arrives with straps and improvises, and improvisation is what fails an inspection at the scale.

Tarping is a separate decision from securement and a separate cost. Some freight has to be covered because it is finished, painted or moisture-sensitive, and some has to be covered because the consignee requires it. Tarping heavy or awkward freight takes real time and is physical work, so it is quoted as an accessorial rather than absorbed into the line haul. Settling it at booking avoids the argument about it later at the dock.

Loading responsibility deserves the same clarity. On open deck the shipper generally loads and the carrier is responsible for securing the load, but the practical division varies by site and by commodity, and disagreements about it surface at the worst possible moment. We confirm who loads, who secures, who tarps and who supplies dunnage before the truck is dispatched, and we put the answer in writing.

A large share of Alberta open deck freight does not deliver to a dock. It delivers to a construction site, a fabrication yard, a plant gate, a compressor station or a lease road, and the constraint is rarely the highway. It is the approach: the turning radius at the entrance, the surface after rain or thaw, the overhead line across the driveway, the gate width, and whether the yard has room for a 53 foot trailer to turn without backing onto a public road.

The offload method decides whether the truck waits. If the consignee has a picker truck, a forklift rated for the actual piece weight or a crane window already booked, the truck is unloaded and released. If the equipment is not there, or is rated for less than the piece actually weighs, the driver waits and detention accrues. Confirming the offload method and the equipment capacity at booking costs one phone call and removes the most common source of unplanned cost on these moves.

Seasonal access is the other half of it. Lease roads and gravel approaches that carry a loaded truck comfortably in January can be unusable during thaw, and the same road may sit under a county restriction the provincial ban list never mentions. Where the destination is that kind of site we ask about ground conditions at the gate before quoting and, where the timing allows, we plan the delivery into the window the road can actually take.