Thanks for the info. I did put 2 x 4's across the steel. Slocomb is right on the Florida line about 20 miles from the Georgia line. I think we had 2 nights this year that went to below freezing.
I dont know, I am new at this but, they have higher wooden roosts. It is 50 degrees here. If I am wrong please let me know. It does get cold at night. I will do a search for it.
In their old purpose they were used to hold heavy canvass bags that the mail went in between post offices. I don't use them myself it was more of a hassle to remove them.