Made mine using Hat's advice - fits inside of my Silverado camper top. Holds 12 rods up to 6.5' long...I made a six rod rack that fits up inside my F150's truck cap (camper top) for my two piece rods with reels. Lightweight but sturdy it rests on and is anchored to the truck bed rails. Did it so that the rods and reels would not have to risk damage when stacking with other stuff we take on our pier fishing trips like coolers, cart, etc. Loss of storage area in the truck bed is minimal since it is near the ceiling of the top. Could put up a pic if that interests you.
Thanks dialout I will check it out.I think this is the thread I was thinking of...older than I thought.
http://www.pierandsurf.com/fishing-forum/showthread.php?31908-Sick-rod-racks.