Free Guide to Truck Running Board Installation Steps

Understanding Truck Running Boards: What They Are and Why Owners Install Them

Truck running boards, also called side steps or nerf bars, are horizontal platforms mounted along the side of a truck between the front and rear wheels. They serve both functional and aesthetic purposes for pickup truck owners. These boards provide a sturdy stepping surface that makes it easier to reach the truck bed, wash the upper portions of the vehicle, or load cargo onto roof racks. Running boards are typically made from aluminum, stainless steel, or plastic-composite materials, and they come in various styles ranging from simple utilitarian designs to more decorative options with LED lighting or textured surfaces.

The popularity of running board installation has grown significantly over the past two decades. According to automotive aftermarket data, approximately 35-40% of pickup truck owners add some type of side step or running board to their vehicles within the first five years of ownership. This reflects both the practical value these components provide and their role in truck customization. Running boards are particularly common on trucks with higher ground clearance, where the step up to the truck bed or door can be 20-30 inches or more from the ground.

Installing running boards yourself can save between $200 and $600 in labor costs compared to professional installation at a dealership or shop. The actual cost of the running boards themselves typically ranges from $150 to $800 depending on material quality and design complexity. Budget-friendly aluminum options start around $150-$300, mid-range stainless steel boards run $300-$500, and premium designs with integrated lighting or composite materials can exceed $600. When you add professional installation labor, total costs often reach $800-$1,400, making DIY installation an attractive option for many truck owners.

Practical takeaway: Research your truck's specific year, make, and model to understand ground clearance and door height. Measure the vertical distance from the ground to your truck bed or door sill—this measurement helps determine whether standard running boards will work for your vehicle or if you need extended-reach options.

Tools and Materials You'll Need for Installation

Before beginning any running board installation project, gather all necessary tools and materials. Having everything prepared beforehand prevents interruptions during the installation process and reduces the overall time commitment. A basic running board installation typically requires common hand tools that many truck owners already have in their garage, though some specialized equipment may be needed depending on your specific truck model and running board design.

Essential hand tools include a socket set with both metric and standard sizes (typically 8mm to 1/2 inch), a torque wrench calibrated for tightening fasteners to manufacturer specifications, wrenches in common sizes, a rubber mallet for gently tapping components into position, and a drill with bits for any pilot holes your installation may require. You'll also need screwdrivers (both Phillips and flat-head), a level to ensure proper board alignment, and measuring tape for accurate placement. Safety equipment is equally important—wear work gloves to protect your hands from sharp edges, safety glasses to shield your eyes from debris, and consider using jack stands if you need to elevate the truck for better access to mounting points.

Beyond tools, you'll need the running board assembly itself along with all included hardware. Most quality running boards come with mounting brackets, bolts, washers, lock washers, and sometimes rubber or foam spacers. Check the instruction manual or parts diagram to verify that all components are present before starting work. You may also need adhesive-backed weatherstripping tape if your running board doesn't come with pre-installed gaskets, as this helps prevent water from entering between the board and truck body. Some installations require drilling into the truck frame, so having a sharp metal-cutting drill bit and a punch for marking hole locations prevents costly mistakes.

Optional but helpful items include a creeper (a low rolling platform) for working underneath the truck, a magnetic tray to hold small fasteners so they don't get lost, and a camera or smartphone to photograph bolt locations and assembly order before disassembly. Having a clean workspace—either a level driveway, garage floor, or shop—makes the installation process safer and more efficient. If you plan to install running boards with integrated lighting, you'll also need basic electrical tools like a wire crimper, wire stripper, and electrical tape, plus knowledge of your truck's wiring system.

Practical takeaway: Create a checklist of all tools and parts before you begin. Lay out components in your workspace in the order you'll use them, and photograph the truck's existing condition from multiple angles. This documentation proves valuable if questions arise during installation or if you need to reference original bolt locations later.

Locating Mounting Points and Preparing Your Truck

The first physical step in running board installation involves identifying the exact mounting locations on your truck's frame and body. Every truck model has specific structural points designed to accept running board brackets, and locating these points correctly ensures safe, secure installation. The frame rails that run along the underside of your truck are the primary mounting locations—these are the strongest structural components and the appropriate place to anchor running boards that will regularly support human weight.

Start by consulting your running board's instruction manual, which typically includes a diagram showing mounting bracket placement for your specific truck year and model. If you don't have the manual, the running board manufacturer's website usually offers downloadable PDF versions. Place the running board against the truck's side at its intended height, typically positioned so the board surface is 10-14 inches from the ground. Mark the mounting bracket positions with painter's tape or chalk—avoid using permanent marker as this can be difficult to clean from truck paint.

Once locations are marked, clean the area thoroughly. Use soap and water to wash away dirt and debris, then dry completely with a clean cloth. If you'll be drilling into the truck frame, use a punch and hammer to create a small indent at the drill point—this prevents the drill bit from wandering across the metal surface. For trucks with existing body trim or side molding near the mounting area, you may need to remove these components carefully. Use a plastic trim removal tool or old credit card rather than metal tools, which can scratch paint. Keep removed trim pieces in a labeled bag so you can reinstall them after the running board is mounted.

Check the area under your truck where mounting brackets will be secured. Look for existing holes, threaded inserts, or welded nuts that may already be installed for optional accessories. Many truck manufacturers pre-drill or pre-weld these mounting points even if they don't install running boards at the factory. If pre-drilled holes don't align with your running board brackets, you'll need to drill new holes through both the truck body and frame. Always measure twice and use a clamp to hold the bracket in exact position before drilling, as misaligned holes are difficult to correct.

Practical takeaway: Take detailed measurements of your truck's frame width and ground clearance at multiple points along the side. Variations in truck geometry—especially on vehicles that have been lifted or lowered—may affect running board alignment. Documenting these measurements prevents installation problems and makes adjustments easier if needed.

Step-by-Step Installation Process and Bracket Mounting

With preparation complete, begin the actual installation by positioning the first mounting bracket. Most running board systems use two to four brackets depending on length—typically one near the front wheel well, one near the rear wheel well, and sometimes additional mid-section brackets for longer boards. Have a helper hold the bracket in position while you verify alignment with a level. The bracket should be perpendicular to the truck body, with equal gaps between the bracket and the body along its entire length.

For bolted installations into pre-drilled frame holes, insert the first bolt through the bracket and into the threaded hole without fully tightening. If holes don't exist, you'll need to drill them now. Use a center punch to mark the exact position, then carefully drill using a drill bit slightly smaller than your mounting bolt diameter. Clear away metal shavings with compressed air or a brush. Apply a thin layer of thread-locking compound (medium strength, removable type) to the bolt threads before installation—this prevents vibration from loosening fasteners over time.

Install all fasteners for the first bracket hand-tight before moving to subsequent brackets. This allows adjustment if alignment isn't perfect. Once all brackets are positioned and hand-tight, use a level to verify the running board will be parallel to the ground in both directions. Many running boards are designed to follow the truck's body lines, so slight angles may be intentional. Check the manufacturer's specifications in your instruction manual. Once alignment is confirmed, use your torque wrench to tighten all fasteners to the manufacturer's specified torque value—typically between 30-50 foot-pounds depending on bolt size and