Do these need any hardware beyond what's in the box?

Mounting hardware is not confirmed in the product specs — verify fitment to factory attachment points before ordering, and have fasteners on hand that match your vehicle's rocker mounting system.

Can I paint these before installation?

Steel bars can be painted after a light surface prep, but test-fit first to confirm clearance and alignment with your body. Paint after final positioning to avoid finish damage during install.

Will these interfere with opening my doors or tailgate?

The drop-down design pulls inward when not in use, so they won't catch doors. Bed access is unaffected — they're positioned below rocker height.