Can You Ship a 40 Foot Container by Truck?

Yes, you can ship a 40-foot container by truck, and most of them travel on a flatbed or step deck trailer rather than a container chassis. The difference comes down to what is actually being hauled. 

A chassis carries a loaded ocean container that stays sealed from the port to the warehouse door. 

A flatbed or step deck carries the container itself as the freight, which is what most buyers and property owners need when they purchase a shipping container, a one-trip container, or a storage container for a job site.

How a 40 Foot Container Ships by Truck

A 40-foot container can move on multiple types of equipment. The right one comes down to two questions: how tall the container is and how it comes off the truck at the other end. 

Height is the number that decides most of it. A loaded trailer has to clear the legal ceiling of 13 feet 6 inches that most states enforce. Vehicle height is not set by federal law. The limit is set state by state, and it runs from 13’6″ in most of the country up to 14 feet in some western states, per the Federal Highway Administration.

Method	Best for	Loaded height (8’6″ container)	Loaded height (high cube)
Step deck / drop deck	High cube containers, most container moves	~12 ft	~13 ft
Flatbed	Standard height containers	~13 ft 6 in (at the legal ceiling)	~14 ft 6 in (over legal, permit required)
Container chassis	Loaded ocean containers moving port to door	~12 ft 6 in	~13 ft 6 in to 13 ft 8 in (low-profile chassis often needed)
Tilt bed / roll off	Local on-site storage placement	Not applicable	Not applicable

Why a Step Deck Is the Default for a High Cube Container

A step deck is the standard choice for a high cube container because a flatbed puts it over the legal height limit. 

A flatbed deck sits roughly five feet off the ground. Add a 9-foot-6 high cube shipping container on top of it, and the total comes to about 14 feet 6 inches. That’s a full foot above the 13-foot-6 legal maximum in most states. That load needs an over-height permit and a routed trip. 

A step deck drops the rear deck to roughly three feet six inches. This brings the same high-cube container to about 13 feet and keeps it inside legal limits with no permit and no special routing. 

Why Flatbeds Work Well for Container Freight

A flatbed handles a standard container without any trouble, which makes it the go-to choice for most container moves. At 8 feet 6 inches of standard container height, a 40-foot container on a five-foot flatbed deck sits right around 13 feet 6 inches, putting it within legal height in most states. 

The only planning point is that local roads, older bridges, rail underpasses, and low utility lines do not always match the interstate standard. A carrier that runs flatbeds every day already knows which lanes clear and which ones to route around, so the load moves without surprises.

When a Container Chassis Makes Sense Instead

A container chassis is the right call when the container is loaded and sealed. This is the port and rail ramp scenario. Freight arrives inside an intermodal container, the box locks onto a 40-ft chassis with twist locks, and the whole unit gets pulled to a distribution center without anyone opening the doors. That first-mile and last-mile leg is called drayage. It is a common move, but it is a different job from hauling the container as cargo.

40 Foot Container Dimensions and Weight

Container dimensions are standardized worldwide, which makes planning a container transport straightforward. Every 40-foot shipping container built to spec has the same footprint, and the only real variable is exterior height.

Spec	40-ft standard container	40-ft high cube container	20-ft container
Exterior length	40 ft	40 ft	20 ft
Exterior width	8 ft	8 ft	8 ft
Exterior height	8 ft 6 in	9 ft 6 in	8 ft 6 in
Interior height	~7 ft 10 in	~8 ft 10 in	~7 ft 10 in
Usable volume	~2,390 cubic feet	~2,690 cubic feet	~1,170 cubic ft
Tare weight	~8,000 lb	~8,750 lb	~4,900 lb

Those numbers hold because ISO containers are built to a published international standard, ISO 668, which fixes the length, width, and corner fitting positions of every freight container in circulation. A 20-ft container from one manufacturer stacks and locks the same way as an actual container from another. It also means the extra 300 cubic feet of storage space in a high cube comes entirely from that added foot of height, which is exactly the foot that creates the trucking problem.

An Empty 40-Ft Container Is Not a Weight Problem

Weight rarely stops a container move. A 40-foot container weighs about 8,000 pounds empty, and a standard flatbed carries up to 48,000 pounds. There is a wide margin. Weight only becomes a factor when the container is loaded. A 40-ft container capacity of roughly 59,000 pounds of cargo, plus the tractor and trailer, pushes past the 80,000-pound federal gross vehicle weight limit set by the Federal Highway Administration. In that situation, the freight either rides a tri-axle chassis, moves under an overweight permit, or gets transloaded into a dry van or onto a flatbed.

Special Container Types

Not every container is a plain dry box, and the variations can change how the load is secured or which trailer it needs:

• High cube containers, one foot taller than standard
• Side doors and double doors configurations
• Open top and flat rack containers
• Water-tight one-trip containers, sold as new
• Used shipping containers pulled from ocean service

A special container with side doors or an open top may need extra attention at the securement stage, but the outside dimensions almost always stay within the standard footprint.

How a Container Is Secured to the Trailer

A container is chained to the trailer through its corner castings, the reinforced steel fittings at all eight corners of the box. Those castings are engineered to carry the container’s fully loaded weight during a crane lift, so they are the strongest anchor points available and the correct place to attach chains. Securement follows federal cargo rules on working load limits, meaning the combined rating of the chains has to meet or exceed a set share of the cargo weight.

A container does not get tarped. It is water-tight by design, so the box protects itself. What it does require is a driver who has secured this kind of freight before and knows how corner castings, chains, and binders work together on a 40-foot load. 

You Need a Way to Get It Off the Truck

Plan your unloading before you book the truck. Neither a flatbed nor a step deck can unload itself. The receiving site needs a crane, a container handler, or a heavy-duty forklift rated for the container’s weight. If none of that is available, the move needs a tilt bed or roll-off truck instead, which tilts the deck and slides the container off under its own weight.

The site also has to accommodate a truck the length of a tractor pulling a 40-foot load. Plan on firm, level ground with roughly 100 feet of straight clearance so the driver can back in and position the load. You will also need at least 14 feet of overhead clearance with no low branches or utility lines, plus someone on site to sign for the delivery.

Drivers will not set a container on soft or sloped ground, so gravel or pavement is the safe bet for on-site storage placement.

What Shipping a 40-Foot Container Costs

There is no flat rate for container shipping. The shipping expense is built from a handful of variables, and knowing them lets you estimate your own move before you ever call for a quote.

Cost driver	What it depends on
Line haul	Mileage, lane, and market conditions
Trailer type	A step deck typically prices above a flatbed
Over-height permits	Only if a high cube ships on a flatbed, and permits are state by state
Fuel surcharge	Current diesel index
Unloading	Crane or container handler at destination, if the receiver has none
Accessorials	Detention, layover, and any special handling

The least expensive version of this move is an empty container on a step deck, delivered to a site that already has a forklift or crane waiting. Every deviation from that adds cost, and the biggest single add is an over-height permit on a high cube that could have shipped legally on the right trailer.

Why Companies Trust Mercer With Container Transport

Mercer Transportation has grown from one truck in 1977 to one of the largest fleets in North America, with over 4 billion miles driven and roughly 250,000 loads a year.

For container transport, the fleet is the point. Mercer runs 1,300 flatbeds and 600 drop decks, precisely the equipment a 40-foot container needs, plus dry vans and Conestogas when freight has to be transloaded.