We bought a new Aluminum deck over 22 foot trailer for local deliveries April 2020 .. we do use it a lot , 400 miles each day easily, it has two 6000 lb axles , we wore the original tires out quickly , by August one was blown out and two were worn out ..I replaced them with Carlisle 14 ply and what a difference .not one problem since and drivers claim the trailer rides better ..we have put about 50,000 miles on them , they do need to be replaced now
but , I sent that trailer to my Minnesota location , they will use it much less than we do ..and I bought two new trailers , got them in 6 weeks these I ordered with 14 ply tires