This was the biggest cake I have made to date. 18" round is Chocoloate, and I had quite a bit of difficulty covering that big of round with fondant, but after a few tries was happy with the outcome. The 14-10-6 rounds are red velvet. Each cake was on a 4" cake dummy, so with the the 4" square wooden base, the cake was about 32" high. The delivery was 3 hours, a bit nervewracking in heavy traffic, but once the cake was set up it turned out just as the bride had in mind.