They come already assembled. All you do is slip the top four pegs of the cart into the bottom part. Get the one in the box would be my recommendation. Also, make sure you don't throw out the ash tool, I have done it twice. It is in a tiny piece of cardboard that looks like packing material. The packing method is pretty slick, the sidewalls are in slots, very simple to unpack, and you get the benefit of the kid on Christmas morning opening it all up.
PNWBA - Hayden, Idaho http://www.facebook.com/BC2BBQ