The cargo space of the 2018 dodge durango, if you don't fold down the seats, is 17.2 cubic feet. fold down the far back ones, and you'll have 47.7 cubic feet to work with. fold 'em all down, and that'll give you 84.5 cubic feet total. the widest object you'll be able to cram in is going to have to be under 70 inches, though. the maximum payload of this durango is 1460 pounds, and the maximum towing capacity is6200 pounds --- though you shouldn't like, have passengers on rollerskates zipping along behind, holding a rope tied to the hitch: it's illegal and also dangerous! put them inside, instead: there's room for 7 passengers (if you haven't folded the seats down) in your vehicle.
The 2018 dodge durango offers 47.7 cubic feet of space. folding the back row of seats and it will allow for 84.5 cubic feet of space.