I discovered that hauling large sheets of plywood in a small pickup truck isn't a good match. So to make my truck a little more accommodating, I built a simple plywood rack.
The rack is made from common 2x4s. As you can see in the drawing, it's nothing more than three supports connected with two cross rails. The rear cross rail is positioned just behind the tail gate to keep the rack from sliding. I positioned the front rail to clear the wheel wells of the truck.
The detail drawing shows how the supports and rails are fastened together with hex bolts and lock nuts. The heads of the bolts and nuts are counterbored to prevent damage to the sheet stock or the truck.
I also placed washers between the supports and cross rails. This allows me to easily fold the rack and store it out of the way when it's not in use.
Have a great weekend,