I have a rackit brand lumber rack with 4 rack specific ratchet straps. Rack is designed to fit under a truck cap. Comes with a perimeter flat metal truckbed support. Fits a 6.5 foot truck bed. A must have for carpenters who pick up lumber at the yard on a regular basis. So nice and convenient to use. And makes guys who have lumber sticking up in the air or 10 feet out the back of their truck look like amateurs.