The problem with kayak/ladder racks that are commercially available, is that they don't leave room for the tonneau cover. This kayak rack works using the existing stake pockets and as long as the tonneau cover doesn't cover them up you can freely open and close the tonneau cover AND carry your stuff in the rack.
Here's a great way to haul up to (5) kayaks plus the paddles, life jackets & other gear neatly in the back of of pick-up. Outfitters in our area charge $40 per kayak per trip to drop you off upriver ($200 a day for a family of 5). With this set-up, they only charge us $25 to drop us off at the same spot & to drive my truck back to the same take-out spot downstream. That saves at least $175 each time we go!
Look for #Bed #Racks With Options - There are many options available if you are considering a truck rack. Look for a bed rack that works with an integrated system, allowing you to haul your tools and toys while protecting the bed of your truck.