Ten years later, Richville, NY farmer Linden Anson is still using an old, 18-inch-wide, galvanized metal trough elevator to feed ground corn to his beef cattle. He simply placed it on the ground and removed the chain. It's durable, plenty wide, won't rust, and easy to sweep out with a broom. He also uses a similar trough elevator that sits on 30-inch legs as his horse feeder. Again, no problem with corrosion, even with mineral blocks in them.