I started with a frame made from 2"x6" pieces and covered with a plywood surface. I wanted one side of it to have a large area that could support full sheets of plywood. I also wanted this area to be on an angle so that the would would be leaning back but also be fully supported to prevent any bowing. I cut some 2"x6"s at an angle to be the back supports for this section. The cutoffs from these angles were then used to support the floor of that section and keep it at a 90-degree angle with the back.
The center section has shelves through the interior that can hold longer stock. The other side of the cart has a couple of bins for holding smaller pieces. These sections were largely made with scrap pieces I already had laying around.
I added wheels to the bottom, of course, so that I can move it around easily. However, the original wheels were too small in diameter and made it difficult to roll the cart in and out of the garage (over the small concrete lip). So I removed the original 2.5" wheels and replaced them with much more sturdy 3.5" wheels.
When fully loaded with lumber, this cart weighed hundreds of pounds. So, I also added metal pull handles on each end to assist with rolling the cart around. Finally, just for fun, I added a sign to the front of the cart with a spoof of the gunfighter, Paladin's, business card in the classic TV show "Have Gun, Will Travel."
