The basics of side step materials

Nerf bars typically use thick-wall steel tubing to get their strength and durability. Either cold-rolled carbon steel or stainless steel are the metals of choice, with the carbon steel only used on powder coat models.

Running boards feature molded polymer top surfaces. It's a high-strength plastic, supported underneath by an integrated aluminum frame for added rigidity. That's how the wider, thinner running board can support more weight than standard tubes.

Ground Clearance

Side step thickness varies greatly, especially among nerf bars. For standard tubes and steps, non-lowered trucks and SUVs will have no trouble. Lowered trucks and SUVs may have clearance issues with any tubes or steps. And, only full-size trucks can tackle jumbo-sized 4" nerf bars. Just another thing to keep in mind when deciding to customize your ultimate driving machine.....:)

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