I have to agree with Pat on this one replacing mine with aluminum. I am not knocking the Skeeter c channel that has lasted 20 yrs made by Big Tex. For me it is the maint. caused by rust that I don't want to deal with anymore. No matter what steel will always need to be painted with some coating that is expensive.
Who ever said nothing in life is impossible.
Never tried slamming a revolving door.