Great design. Panel at level is 4\" above ground. Side support braces are 7 1/2\" high. Support braces adjust to any width. Tires are excellent attached with cotter pins (which may be why the previous buyer returned this, saving me a few dollars, they didn't know how to use cotter pins) which is a very secure way to attach wheels. Moves smoothly over all terrain and maneuvers great. Great value for the money. I bought this because right now I'm moving 8' lengths of butcherblock in and out of my garage, next July I'll be doing a complete reroof of my house with 100 sheets of 23/32 plywood, and soon after building true carriage door garage doors out of redwood. All by myself; I'm 65. This will really help. And it will be sturdy enough fit all of this and more.