Lately I’ve had to transport 4 x 8 sheet goods on top of our undersized chariot. Thanks to YouTuber Dan Pattison, I now have a handy method.
It’s as simple as attaching 2 x 4s to an existing roof rack. Following the instructions in Pattison’s video, I notched the 2 x 4s and attached them with metal plates and bolts to make the rack sturdy and easy to remove. A pair of brackets keep the sheets from sliding forward during transit. And I use this handy online calculator to make sure I don’t exceed the weight capacity of my rack.
Pattison’s rack is not just for sheet goods. In fact, I use it for transporting lumber much more often than plywood. Put those 2 x 6s on the roof, strap them to one of the 2 x 4 cross pieces and you’re ready to roll.