What Makes a Load "Oversized"
Standard legal limits in most Canadian provinces are roughly 8.5 feet wide, 13.5 feet tall, and 53-65 feet long for a typical tractor-trailer combination, with weight limits set by axle configuration and provincial regulation. Any load that exceeds width, height, length, or weight limits in its province of travel needs a permit before it can legally move.
Because these thresholds are set provincially, a load might be legal in one province's default configuration and require a permit in another - which is one of the first things we check when planning a cross-provincial oversize move.
Types of Permits
A single-trip permit covers one specific move on a defined route and date. An annual or blanket permit, available in some provinces for loads within certain oversize thresholds, covers repeated moves without needing a new permit each time. Superload permits apply to the largest, heaviest loads and typically require more extensive review, including bridge and road engineering assessments in some cases.
We determine which permit type applies based on your load's actual dimensions and weight, and the provinces it will travel through.
Pilot and Escort Vehicle Requirements
Depending on how far a load exceeds standard dimensions, provinces may require pilot (escort) vehicles - front, rear, or both - to warn other traffic and help navigate tight points on the route. Height poles are sometimes required on the lead escort vehicle to check clearance at bridges and overhead obstructions ahead of the load.
Escort requirements are one of the costs that catches shippers off guard if they haven't shipped oversize before - we factor them into the quote from the start rather than adding them as a surprise.
Route Planning and Restrictions
Oversize routes have to account for bridge weight and height restrictions, weight-restricted roads (common during spring thaw in many provinces), construction zones, and municipal bylaws that may restrict oversize travel through certain areas or times. Many jurisdictions also restrict oversize moves to daylight hours only, and some restrict travel on weekends or holidays.
We plan the route as part of the permit application process, not after the fact - this avoids a load getting partway through a move and hitting a restriction that wasn't accounted for.
Timelines for Permit Approval
Permit processing time varies by province and by how far outside standard dimensions the load is - straightforward single-trip permits can sometimes be processed within a day or two, while superloads requiring engineering review can take considerably longer. We start the permit process as early as possible once we have accurate load dimensions, since permit timing is often the factor that determines how quickly an oversize shipment can actually move.
Why This Isn't a DIY Process for Most Shippers
Between varying provincial regulations, escort requirements, route restrictions, and the paperwork itself, oversize permitting is genuinely complex, and mistakes can mean fines, delays, or a load getting turned back mid-route. Working with a broker who handles this regularly means the permitting and route planning happen correctly the first time, rather than being figured out reactively.
Frequently asked questions
What size load requires an oversize permit in Canada?
It depends on the province, but generally any load exceeding about 8.5 feet wide, 13.5 feet tall, or standard length/weight limits for its axle configuration needs a permit.
Do oversize loads need escort vehicles?
Depending on how far the load exceeds standard dimensions and the province's specific rules, yes - front, rear, or both escorts may be required.
Can oversize loads travel at night?
Many provinces restrict oversize travel to daylight hours only, and some restrict weekend or holiday travel as well. This varies by jurisdiction and load size.
How long does it take to get an oversize permit?
It varies by province and load size - straightforward single-trip permits can be processed quickly, while superloads requiring engineering review take longer. We start the process as soon as we have accurate dimensions.
What happens if an oversize load doesn't have the right permit?
It's not legal to move and risks fines, delays, or the load being turned back. This is why proper permitting and route planning happen before the truck ever leaves.