I met a fellow in Montana who built his out of PVC tubes, military ammo boxes, & ordinary roof racks. The tubes were bolted down on the roof rack on the roof & he attached the rear rack to rack like a ladder rack in the box of the pickup. The ammo boxes were then used on the reel end of the rods which he could lock with a padlock. I use to have a picture of because I was going to build the same setup, but I because I sliding window & a cap on my truck I went with a Rod Loft which would let me haul 6 strung up rods, but the most I have done is 4. Works nice because the truck is all blacked out & no one knows they are even there.