I wanted to get a flatbed type wagon or cart to tow behind a compact tractor which would be about 4' x 6'. However, it seems like all the regular utility wagons are only about 2' wide. For example, if you look at the range of GorillaMade carts, a typical manufacturer, you can see that even the biggest wagons are only 3' wide.
Is there some reason why a 4' flatbed wagon is impractical that I don't see?