Thought I'd try a new design. Its sold already so hopefully all works right first time I fire it up. The 3 racks will be 20x20. Building spoke wheels to go on it as well.
Wheels weren't hard. The outer ring is from the leftover part of firebox tank. The center bushing is 3/4" ID and 1" OD and are 2" wide as are the wheels. The spokes are 1/2" foundation anchor bolts I cut to length. As these are 8 spoke, I laid out the first 4 with a square tacking in place. I then took the remaining 4 and centered. Given the 1" bushing center and 1/2" spokes, they all touched when placed together so the fit up was perfect but I did chamfer the edges so I had a little room for the weld to penetrate easier. From start to finish including cutting the rings, the spokes and grinding chamfers on the spokes, took about an hour and a half to build them both. I did have one slightly wobbly after installation so I found the spot closest to smoker, heated 3 spokes cherry red next to bushing and pried slightly. Spun wheels and repeated a few times until rolled without a wobble