Wrought-iron railings can last long outdoors if they are primed and painted frequently to prevent weathering, rusting and corrosion. Ideally, these railings should be stripped and repainted every couple of years if they are to last for a long time outdoors.
Wrought-iron railings are much more durable than most metal railings because they are stronger and harder to break, and last for long outdoors if they are well-maintained. Frequent checks for rust and corrosion, combined with periodic painting and weather-resistant coating, are essential for these railings to last. Priming the railings with a rust-resistant primer before painting them makes them last longer outdoors.