Butch Uehling, producer from Gretna, Neb., has solid sided alley-ways leading into his cattle working area. The 5-foot tall, 28-inch wide setup works well for cattle 600 pounds or heavier, but allows smaller calves to turn around and slow things down.

Mr. Uehling purchased some highway guardrail to narrow the alleyway. He bolted a piece of guardrail on each side of the alley so that the top of the rail is 26 inches off the ground. This way, the smaller calves don't have room to turn around and the larger cattle still have the 28-inch width they need to pass through. The guardrail is available in many lengths, and you can buy end pieces that will cover up blunt edges of the rail.