Nerf bars and running boards are commonly found on trucks, which are built to be larger than regular vehicles. They have taller ride heights and are higher off the ground, thus making it necessary to have either the nerf bar or running board installed as it can be difficult to enter or exit these vehicles.
Running boards are typically equipped as standard out of the dealership. However, if you want to give your truck a special look, nerf bars are also a great choice.
But first, let’s discuss the differences between these truck step options.
Running boards or footboards provide an accessible step for people who are entering and exiting pickup trucks and other taller vehicles. They have an overall flat profile and run along the side of the truck cabin, right below the doors.
Running boards are also perfect for SUVs and crossovers as these vehicles are also designed to provide more ground clearance. The boards are mounted somewhat flush against the rocker panels, with some SUVs having running boards that electronically retract and stow neatly into the body.
If you require a larger stepping area before climbing into your vehicle, a running board is perfect for you.
Aside from its intended purpose, running boards also provide other benefits—like keeping your car clean. The surface of the running board is the perfect area to wipe or knock the dirt and mud off your shoes before entering the car. It also acts as extra protection from rocks, mud, and other debris that would typically fly up and hit the door.
The nerf bar has its origins in the world of racing. “Nerf” is the term for when a racer bumps another car in order to pass them during a race. In order to do this move safely, race cars are equipped with tubular fixtures on either side of the car body. These bars help protect the cars and prevent their tires from rubbing against each other (which can make either car spin out of control or flip over) during this maneuver.
The nerf bar has since been adopted for other applications, specifically for trucks and SUVs. Much like the running board, it serves as a lowered step to make it easier to get in and out of lifted vehicles. It’s essentially made of a single aluminum or steel tube spanning the cabin area, usually with a dedicated, slip-resistant rubber foot grip under each door.
In some cases, nerf bars are installed in taller trucks simply to give them a more rugged look.
As discussed above, nerf bars and running boards are extremely similar in function. So to help you choose between the two, let’s put them side by side and take a closer look at how they differ from one another.
| Nerf Bars | Running Boards | |
| Shape | Tubular with a round or oval shape | Flat and wide surface |
| Size | 2 to 6 inches in diameter | 4 to 7 inches in width |
| Length | Cab-length Wheel-to-wheel | |
| Style | Standard nerf bars
Sport tubes | Standard running boards Lighted running boards Retractable running boards Custom molded running boards |
| Materials and Finishes | Polished stainless steel Powder-coated carbon steel (matte or textured) High-quality plastic Aluminum | |
| Capacity | Up to 300 lbs. | Up to 500 lbs. |
| Recommended for | Heavy-duty trucks, workhorse rigs, and off-road vehicles | Modern trucks and SUVs |
The main difference between running boards and nerf bars is their shape.
Running boards provide a flatter and wider surface to place your feet. They are often mounted flush along the length of the vehicle. They may come with non-slip step pads or tread patterns that provide extra grip when entering and exiting the vehicle.
Nerf bars feature a round and narrow surface for stepping. Some designs come with rubber foot grips below every door. From the side, you’ll be able to see the bar’s oval, tubular, or angular shape.
Nerf bars and running boards come in sizes that vary depending on which year, make, and model the parts are compatible with. In general, nerf bars have diameters measuring between 2 to 6 inches while running boards have widths in the range of 4 to 7 inches.
Both nerf bars and running boards come in two lengths: cab-length and wheel-to-wheel.
Cab-length nerf bars and running boards span the entire length of the passenger cabin. They run from behind the front wheel and stop at where the cab doors end. These are highly recommended for full-size SUVs.
Wheel-to-wheel nerf bars and running boards extend further than the passenger cab and stretch towards the rear wheel. This provides them with an additional function—you can easily access items inside the truck bed from the side of your vehicle or reach any roof/utility racks on top of your vehicle.
Standard nerf bars are tubular in shape with round or oval-shaped ends. Oval nerf bars provide a surface that’s between round and flat. They provide a wider surface than round nerf bars for better access to the vehicle.
Sport tubes have a smaller diameter and a lower weight capacity than standard nerf bars. They are typically installed on vehicles that sit lower to the ground since they are mostly decorative. The ends of sports tubes typically curve under the vehicle.
Conventional running boards are long, rectangular footboards that are mounted flush against the body of the vehicle. They run along the length of the cabin in a single piece below the doors.
These running boards feature built-in lighting that make them more visible to make it easier to enter or alight the vehicle in low-light situations. These LED lights illuminate not just the top of the step but also underneath it, making it easier to avoid puddles and find your footing on uneven terrain.
Also known as power running boards, these motorized steps extend and retract from the body of the vehicle. Retractable running boards are activated by electric door sensors and powered by motors located at the end of each bracket.
These running boards provide trucks and SUVs with a sleeker look. Custom designing this component allows you to seamlessly blend them in with the curves of your vehicle and even color-match them with your truck’s paint job.
Nerf bars are typically made from thick-walled steel tubing that comes in either a polished or powder-coated finish. Cold-rolled stainless steel is polished, while carbon steel is powder-coated.
Polished steel features a reflective finish that doesn’t tarnish or corrode, while powder-coated steel has a chip and scratch-resistant surface.
Most running boards make use of high-strength plastic supported by an integrated aluminum frame. They often come in a matte black or dark grey color. The surface of plastic footboards may have a molded step, while those made from aluminum are often stamped with a tread design to prevent slipping. Carbon or stainless steel may also be used.
Nerf bars made from dense steel, if installed with heavy-duty mounting brackets, can support a maximum weight of approximately 300 lbs. at a time. Running boards have greater weight capacity because of the support frame that run underneath them. They can carry up to 500 lbs. at a time.
Plastic and aluminum nerf bars or running boards are understandably lighter than their steel counterparts. They have lower weight limits but are an affordable option for those who have no need for the extra capacity. If your priority is durability and strength, carbon or stainless steel is the way to go.
Nerf bars and running boards are installed in a similar manner. Some require drilling, but most vehicles have pre-drilled mounting holes that only require the part to be bolted on. Installing a nerf bar or running board is an easy and quick project that can be done in under an hour.
Both nerf bars and running boards offer clear and undeniable benefits.
They provide ease of access to your vehicle, reduce the risk of slipping when getting in and out of your ride, and give you the means to clean your shoes before stepping inside the car. They also help protect the vehicle by guarding the sides from impact and road debris.
Both nerf bars and running boards make it significantly easier for drivers and passengers to enter or exit a vehicle. They give people an extra step to climb, making a tall vehicle like a truck or an SUV much more manageable to get in and out of.
Nerf bars and running boards are typically made with rubber or another non-slip surface. This means you’ll be less likely to slip or fall off your vehicle whenever you enter or exit it.
Slipping is a common problem for owners of tall vehicles. They’d normally have to stand on one leg and raise the other high to access their ride, greatly reducing their stability on the ground. If the step or ground is slippery, they can misstep and fall down.
Drivers and passengers alike can easily clean their shoes by wiping their soles on the rungs of nerf bars and running boards. This is especially useful in the rainy season when there’s a lot of mud and in winter when there’s a lot of snow.
By having the ability to clean your shoes before entering the vehicle, you can prevent dirtying the interior with hard-to-clean substances, like mud, dirt, sand, and snow.
Because nerf bars and running boards are designed for rugged, outdoorsy activity, both accessories provide your vehicle with some extra protection. They guard the sides of your vehicle from damage from obstacles, other vehicles, and flying road debris.
Running boards and nerf bars essentially serve the same purpose. They also provide a certain aesthetic to your vehicle. If you’re looking for a sleek and formal look with a wider stepping area, consider the running board. Their wider and flatter profile are perfect for those with families.
On the other hand, if you’re looking for a sportier feel, then nerf bars are for you.
Nerf bars are narrower and do not provide a lot of surface area for stepping, but they typically blend in more seamlessly with your vehicle’s design.
Whichever you choose, make sure they are mounted on properly. Seek a professional installer’s advice to get a precise fit and to avoid any damage to your vehicle. Accidents may happen if they are suddenly dislodged from their mounting points while someone is stepping on them.
Damaging running boards and nerf bars are very easy if you take your vehicle off-road, so do consider the reduced ride height before hitting the boulders!
Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.