Shown in this picture is the double rack, set up for two kayaks. The overall height is proximately 44".
The lateral support leg at the back is removable and requires no tools for assembly. This means you can easily disassemble the rack to easily fit in any vehicle.
Another popular version of this rack is to have one kayak arm on top and have a longer raised canoe are on the bottom. This would be for the person who has one kayak and one canoe.