Mine are 8ft and they barely fit in my attic, and lay down perfectly in my 8' trailer. I can put them on the roof of my van, but my van can't get up 4wd trails. My 4wd doesn't have a roof rack (and likely never will unless I custom build one) so that's where the trailer comes in. I want a nice, big, 12ft fishing kayak, but I'm not sure where I'd put it and it wouldn't fit on my trailer until I mod the trailer.