Friend has one.Guard rail is hard to beat if you find it as seconds and plan well for using it.
Drop a corral panel on the inside of the chute .Mine is drill stem. It was built in 1989. We've only had this place two years, but I love it. I would definitely build with stem again if I was going to build another. Alleyway is a little bit too wide for small yearlings, but it was built for running momma cows through too. I would make a few design changes if I were to rebuild, but as far as material it's great.