This will depend on the hitch used and the height of the trailer coupler. You want the trailer to be as level as possible. We have a page on calculating hitch height and coupler height to help you find what ball mount would work best.
Most light duty trailers are 16-17 inches in coupler height, so we recommend ball mounts on the hitch pages that will give that particular vehicle 16-17 inches on the ball mount. The ball mount that provides 16-17 inches height for a 2008 Hyundai Entourage... view full answer...
On the Curt trailer hitch mount cargo carrier # C18150 from the center of the hitch pin hole to where the shank starts to bend up, it is approximately 5 inches. The rise in the shank provides 3 inches more height above the top of the receiver opening. I have included a link to a video review of this carrier for you. view full answer...