If you are thinking about buying a dually truck, one question may come to mind: how wide is a dually truck? This is important if you need to park the truck in a garage, drive through a narrow gate, or use it on tight roads.
A typical dually pickup is around 96 to 102 inches wide at the rear fenders, but the exact width depends on the truck model, year, configuration, tires, wheels, and the point where you measure it.
A dually can also be wider when you include the side mirrors. So, before checking whether your truck will fit somewhere, it is better to check its exact factory dimensions.
What Is a Dually Truck?
A dually truck, also called a dual rear wheel (DRW) truck, has two tires on each side of the rear axle. This gives the truck four rear tires instead of two.
Popular dually trucks include:
- Ford F-350 Super Duty DRW
- Ford F-450 Super Duty DRW
- Ram 3500 DRW
- Chevrolet Silverado 3500 HD DRW
- GMC Sierra 3500 HD DRW
These trucks are mainly built for heavy towing and hauling. The extra rear tires provide a wider rear footprint and help support heavy loads.
How Wide Is a Dually Truck?
So, how wide is a dually truck?
As a general guide, many dually pickups are about 96 to 102 inches wide at the rear fenders. That is roughly 8 to 8.5 feet.
However, this is only a general range. The exact measurement can change between manufacturers and model years.
For example, manufacturer specifications can list a different maximum width depending on whether the measurement is taken at the body, rear fenders, or mirrors.
This is why you should not use one number for every dually truck.
Why Are Dually Trucks So Wide?
The main reason is the second rear tire on each side.
A dually needs enough space for:
- Inner and outer rear tires
- The rear axle
- Tire clearance
- Wide rear fenders
- Suspension and other components
The large rear fenders cover the extra tires and make the back of the truck noticeably wider than a single-rear-wheel (SRW) truck.
The difference is usually most noticeable when you look at the truck from behind.
Dually vs. SRW Truck Width
A regular pickup with one rear tire on each side is called an SRW (single rear wheel) truck.
A dually has DRW (dual rear wheels).
In general, a dually is around 8 to 12 inches wider at the rear than a comparable SRW truck, although the exact difference depends on the model.
| Truck Type | General Rear Width |
|---|---|
| SRW pickup | Narrower |
| DRW/Dually pickup | About 96–102 inches |
| Dually difference | Often around 8–12 inches wider |
The extra width gives a dually more rear tire contact and helps it handle heavy towing and payloads.
Is a Dually Truck 8 Feet Wide?
A dually can be close to 8 feet wide, especially when measuring around the rear fenders.
But there is an important detail: 8 feet is not a universal dually width.
Some trucks may be narrower or wider depending on their configuration. Mirrors can also make the truck significantly wider than the body itself.
If you are checking whether a truck will fit through a gate or garage, use the manufacturer’s exact measurement instead of assuming that every dually is exactly 8 feet wide.
How Wide Is a Dually With Mirrors?
This is an important measurement that many people forget.
The truck body may fit through an opening, but the mirrors can make the total width much greater.
For example, a manufacturer may provide one measurement for the truck’s maximum body width and another measurement when mirrors are included.
If you are measuring a garage door, driveway, or gate, check:
- Truck body width
- Rear-fender width
- Mirror-to-mirror width
- Width of the opening
You should also leave some extra space on both sides instead of trying to drive through with only a few inches of clearance.
Will a Dually Fit in a Standard Garage?
It depends on the actual width of both the truck and the garage opening.
Before parking a dually inside a garage, measure the garage-door opening, not just the inside walls.
For example, a truck may have enough room inside the garage but still have difficulty passing through the door.
Also consider:
- Side mirrors
- Rear fenders
- Door frame clearance
- Garage wall clearance
- How straight you can enter the garage
If your garage or gate is narrow, check the exact truck dimensions before buying.
How Wide Is a Dually Truck Bed?
The outside width of a dually is different from the usable width of its truck bed.
One useful measurement is the distance between the wheel wells.
On many heavy-duty pickups, this space is around 50 to 52 inches, although it varies by model and configuration.
This measurement is especially useful if you carry pallets or large equipment.
A standard pallet is about 48 inches wide, so knowing the space between the wheel wells can help you understand what you can carry inside the bed.
How to Measure a Dually Truck’s Width
If you already own a dually and want its exact width, measuring it yourself is simple.
Step 1: Park on level ground
Park the truck on a flat surface and keep the wheels straight.
Step 2: Find the widest point
For a dually, the rear fenders or tires may be the widest point.
Step 3: Measure from side to side
Measure from the outside edge on one side to the outside edge on the other side.
Step 4: Measure the mirrors separately
If you are checking a garage or gate, measure the maximum width including the mirrors.
Step 5: Compare the measurements
Compare your truck’s measurements with the actual opening you need to use.
This gives you a much more reliable answer than using a general dually width.
Are All Dually Trucks the Same Width?
No. Dually trucks do not all have the same width.
Width can change because of:
- Truck manufacturer
- Model year
- Cab configuration
- Bed length
- 4×2 or 4×4 setup
- Wheels and tires
- Factory equipment
- Aftermarket modifications
Lift kits, wider tires, different wheels, and other modifications can also change the truck’s overall width.
For an exact number, always check the specifications for your specific truck.
Why Does Dually Width Matter?
The extra width is useful when the truck is carrying or towing heavy loads, but it can also create some practical challenges.
A wider truck may require more care when:
- Parking
- Using narrow roads
- Entering a garage
- Driving through a gate
- Using a parking space
- Passing through tight areas
This is one reason it is useful to know your truck’s exact dimensions before buying a dually.
Frequently Asked Questions
How wide is a dually truck in feet?
Many dually pickups are roughly 8 to 8.5 feet wide at the rear fenders, but the exact measurement varies by truck.
How much wider is a dually than a regular truck?
A dually is often around 8 to 12 inches wider at the rear than a comparable SRW truck, depending on the model.
Is every dually truck 8 feet wide?
No. Eight feet is a useful general reference, but actual width varies between trucks and measurement points.
Will a dually fit through an 8-foot gate?
It depends on the truck’s actual width and the gate’s usable opening. Measure the truck, including the areas that could contact the gate, before attempting to drive through.
Is a dually bed wider than a regular truck bed?
The outside of a dually is wider, but the usable space between the rear wheel wells can still be around 50–52 inches on many heavy-duty pickups.
What is the widest part of a dually truck?
The rear fenders and rear tire area are commonly among the widest parts of a dually. Mirrors can create an even greater overall width.
Final Answer
So, how wide is a dually truck? A typical dually pickup is roughly 96 to 102 inches wide at the rear fenders, or about 8 to 8.5 feet. However, there is no single width that applies to every dually.
If you are checking whether a dually will fit in a garage, gate, driveway, or parking space, use the exact specifications for your truck and check the width with and without mirrors. This small step can save you from a very expensive clearance problem later.
