[header] How to transport a decorated cake [title] Be bold. [step] Most cakes are fairly solid and strong, so the cake itself will be fine provided it's well packed and not able to slide about on its journey. [title] Choose a sturdy box or cake carrier to place the cake in. 
[step] Avoid anything too large, as the cake might slight and hit the sides. By the same token, don't squish the cake in unless you don't mind the frosting rubbing off.