For heavy cargo hauling over your truck's bed, nothing beats the Yakima Outdoorsman 300. It's like a penthouse duplex for your gear. Clamps directly and securely to your truck bed, no drilling required. Combine one of the stand sets with towers on your trucks roof or use two sets of the stands on the bed itself. Each stand set can hold up to 300 pounds if on truckbed only. If used in conjunction with top-of-cab racks, check roof rack load limit. The Outdoorsman 300 is sold as a pair of stands - one for either side of truck bed. Use standard Yakima round crossbars (sold separately)with the Outdoorsman. Stands are Built for small pickups. For full-size trucks, use Item # 3512, Outdoorsman 300 -Full-Size. Stand dimensions: 26" tall (from bed rail), base is 16"long.