8 foot.
I carried them to Sardis this past week tied in the bed of the truck with the end hanging over the tailgate, no problem there. The bed was loaded down with a lot of extra stuff on the way home.
I can go this style.
Workstar Pickup Truck Rack
On ebay they can be dirt cheap with free shipping, or higher priced than this one with almost the same price for shipping. Mount them on the inside of the rail instead of the top.