boat transport cost
1 The cost to transport a boat will mostly depend on the size of the boat. 2  On average, a boat that varies from 28 to 40 foot will commonly pay anywhere from $1.50 to $4 per mile. If the boat is over sized, most states will require permits to legally transport it on the road. 2  If the boat has to be transported across state lines, multiple permits will have to be pulled. 3  Depending on the state, permits can average $100 to $300. 4  Most states have a height limit of 13â6â³.