[Ron Brown]

Chuck, when it comes to weight sometimes there's not much difference. It takes more bracing with aluminnum to get the same weight load rating, the maintenance on alum. units isn't different unless you live around salt water air( no rust). Cost is some what higher, aluminum cost more. In a steel trailer you really need to look at the construction of the unit from the ground up. Some manufactors do alot of things different. Warrenty is something to consider as well if you buy new. The best advice is to ask people who own fifferent brands, they are the true answers.Think long and hard about the lenght, if you are thinking 28" might consider going on up to 30", it never fails you just run out of room. Again the best answers will come from people who own the different ones. Good Luck