RB20 Running Boards With Mounting Brackets Protective Bedliner Coating 2015-2018 Silverado/Sierra 2500 HD/3500 HD Extended Cab Diesel Go Rhino

These running boards feature heavy-duty plate-steel construction with 16-gauge galvanized, zinc-coated steel for superior strength and corrosion resistance. They have a textured black bedliner coating to prevent rust, a 7.5-inch extra-wide profile, and bullet-stamped perforations for enhanced traction and debris drainage. The RB20 features a closed, fully welded boxed end design to prevent damage. They offer a simple, bolt-on installation with no drilling, trimming, or modifications required. Includes vehicle-specific mount kit and instructions. Backed by a limited lifetime structural warranty and a 5-year finish warranty.