The Most Common Types of Vehicle Dents and What Causes Them

Dents are infamously not uniform. They come in different shapes, sizes, and depths. Knowing what type you’re dealing with can make a real difference in knowing how to repair a dent in a car. Or at least knowing what to expect at the auto body shop.

Dent repair options range from same-day paintless techniques to more involved bodywork, and the right course of action depends on the dent’s parameters and cause. Let’s look at the most common types of vehicle dents so you can better understand what happened to your car and what dent repair might involve.

What is the difference between a dent, a ding, and a crease on a vehicle?

Generally speaking, a dent is a shallow, rounded depression in a panel. The cause of a dent is most often a blunt, even impact, such as a hailstone or a stray shopping cart. A ding is typically a smaller, more minor blemish, often just a few millimetres deep and easy to overlook. A crease is different altogether. It’s a sharp, linear fold in the metal, typically caused by a sliding or dragging impact rather than a direct strike.

Of course, these are imprecise terms. What one might call a “ding,” another will call a “dent.” But these broad definitions largely comport with how people talk about it at the auto body shop. And if you know which category your damage falls into, you can better explain your situation when going for professional dent repair.

Dents and dings often respond well to paintless techniques, while creases usually involve stretched or folded metal that needs more traditional bodywork to restore properly. A quick way to tell them apart: run your hand over the damage. Dents and dings feel smooth and rounded, while a crease has a distinct fold or ridge you can feel under your fingers.

What causes round dents and are they easier to repair than other types?

Hail damage, door dings from other vehicles in parking lots, and errant baseball throws or road hockey shots are common culprits of round dents. Such dents are usually easier to repair than others because the metal is pushed inward evenly, without stretching or creasing. This allows dent repair professionals to massage it back into shape from behind the panel using specialized rods and tools.

Hail is a particularly common cause in Canada. In fact, a single 2024 hailstorm in Calgary produced nearly $2.8 billion in damage, according to the Insurance Bureau of Canada, much of it to vehicles. If your vehicle has multiple round dents spread across the hood, roof, and trunk rather than a single impact point, hail is your prime suspect.

What causes sharp crease dents and why are they harder to fix?

Sideswipes, shopping cart hits, and anything that collides with a sharp corner can cause crease dents. This happens because the metal is dragged or folded rather than struck evenly. These are harder to fix because the crease stretches the metal beyond its original shape, and stretched metal doesn’t simply spring back the way a round dent does, no matter how much pressure you apply from behind the panel.

Repairing a crease is often a more involved process than paintless dent repair (PDR). It requires filling, sanding, and repainting to restore a smooth surface, because manipulating stretched metal back into place tends to leave the panel thinner and less stable than it was before. A technician will typically inspect the crease closely to determine whether the surrounding paint and metal can support a paintless approach at all.

How does a collision create complex multi-panel dents?

A collision can create multi-panel dents when the force of impact transfers across adjacent panels rather than staying contained to a single point. The physics involved can be complex, but there are numerous factors at play beyond speed. Indeed, even a moderate-speed impact can push energy from a bumper into a fender, and from a fender into a door. Such a crash leaves damage that spans several body sections at once and can shift panel gaps you wouldn’t immediately notice from a quick glance.

This kind of damage can misalign panels and, in some cases, injure the vehicle’s structural components. As a result, multi-panel dents often require a full structural assessment before any repair work begins. An auto body shop will check panel gaps, mounting points, and frame measurements to confirm the damage hasn’t gone deeper than what’s visible on the surface.

What dent types are suitable for paintless dent repair versus traditional bodywork?

PDR works best on shallow, round dents where the paint is still intact and the metal hasn’t been stretched. These types account for a strong majority of everyday dent damage; possibly as much as 80% to 90% of typical dents are candidates for PDR. It’s also usually faster and less expensive, since there’s no filler, sanding, or paint-matching required.

Traditional bodywork becomes necessary in situations such as:

• The paint is cracked or chipped.
• The metal has been stretched or creased.
• The dent sits somewhere a technician can’t reach from behind the panel, such as certain areas near a door frame or roofline.

In cases such as these, filling, sanding, and repainting are the only way to restore a smooth, factory-quality surface.

How quickly should you get a dent repaired before it causes additional damage?

You should get a dent repaired as soon as possible. Dents may seem lower-stakes than other vehicle issues, such as engine or transmission trouble, but when left-unchecked, they can cause real damage. Even a small dent with cracked paint exposes bare metal to moisture and road salt, which can lead to rust within weeks. Once rust sets in beneath the paint, it almost inevitably spreads outward from the damage site, turning a relatively simple fix into a more complex – and expensive – repair.

Dents also weaken the structural integrity of a panel over time, particularly in areas near seams or edges. This is because the metal is already under stress from the initial impact. Addressing a dent early, before corrosion or additional stress sets in, is almost always the more affordable path compared to waiting until the damage worsens and the scope of repair grows.

Whatever type of dent you’re dealing with, an accurate assessment is the first step to fixing the problem. The right repair method depends on the specific damage to your vehicle rather than a one-size-fits-all approach. A dent repair technician can typically tell within minutes whether your damage is a candidate for PDR or if it needs a more sophisticated fix. That’s why it’s best to get a professional opinion before assuming the worst.

Not sure what type of dent you have? Find a CSN shop near you and we’ll figure it out.