Over-Dimensional FAQ - Avenger Logistics

What is considered over-dimensional freight?

Freight is generally considered over-dimensional when it exceeds standard legal dimensions, which vary by state, but are most commonly defined as:

8’5″ wide
13’5″ to 14′ high
53′ trailer length
80,000 lbs. gross vehicle weight

Permits are typically required, and freight is deemed over-dimensional when these sizes are exceeded.

Why does over-dimensional freight cost more?

Over-dimensional freight takes specialized labor, equipment and planning to ship safely. You’re not only paying for space on a truck, but also additional costs like:

Do over-dimensional shipments require permits?

Yes. Permits are generally required anytime a shipment exceeds legal dimensions or weight limits. Permit requirements vary by state and province.

Why are escorts or pilot cars required for over-dimensional shipping?

Getting freight to the destination intact and in peak condition is the goal. Pilot cars help with this by:

Warning fellow motorists
Assisting with lane changes and turns
Monitoring bridge clearances
Navigating restricted routes

Depending on the size of your load, some states require one or multiple escorts so be sure to follow the guidance of your shipping experts.

Why do I have to provide exact dimensions for my over-dimensional shipment?

Exact dimensions are a critical requirement for over-dimensional loads. Even a few inches can change:

It is much better to be prepared upfront than to be hit with additional costs or delays due to incorrect information.

What is considered a super load?

A super load significantly exceeds standard permit dimensions and often requires:

Engineering studies
Utility coordination
Police escorts
Bridge analysis
Specialized equipment

How long does it take to obtain permits for an over-dimensional shipment?

Planning is very important when factoring in the lead time for permits. Simple permits can often be obtained within hours, while highly oversized or super loads may require several days or weeks due to route engineering and government approvals.

Can over-dimensional loads travel at night or on weekends?

Many states restrict oversized loads to daylight hours and prohibit travel during:

Weekends
Holidays
Major metropolitan rush hours
Severe weather conditions

Restrictions vary by jurisdiction.

What are the qualifications I should look for in a partner for over-dimensional shipping?

Look for a transportation partner with proven experience managing overdimensional and specialized freight. The right provider should understand permitting requirements, route restrictions, escort requirements, specialized equipment and load securement regulations. They should also have access to a qualified carrier network with experience handling oversized loads.

Because requirements vary by state and by shipment, your partner should be able to manage the entire process—from selecting the proper equipment and verifying dimensions to coordinating permits, escorts, routing and delivery. Strong communication and shipment visibility are also critical, particularly when weather, construction, permit restrictions or travel-hour limitations affect the load.

Most importantly, choose a partner that treats over-dimensional freight as a specialized service rather than simply another truckload shipment. Avenger Logistics has decades of practice in handling over-dimensional and open-deck shipments. Our expertise is rooted in deep organizational knowledge and realworld experience in managing challenging and unorthodox shipments for our customers. We thrive on handling loads that require finesse and focus to be successful.

Are there any special certifications required for open-deck freight haulers?

There is no specific federal certification required to haul open-deck freight; however, carriers and drivers must meet all applicable DOT and FMCSA requirements, including federal cargo-securement regulations. Certain cargo types may require additional certifications, endorsements or qualifications, such as those required for hazardous materials. Avenger Logistics is extremely well-versed in all open-deck requirements and can help advise and guide our customers to ensure each shipment is properly managed, including all paperwork and proper authorizations. When it comes to your open-deck shipments, you want to work with an experienced partner who can simplify the process and offer you peace of mind.