How to choose your wedding cake size properly for your big day! First, know the difference between finger portions and dessert portions. Dessert portions are larger, and if your cake is the main dessert, you’ll need more cake than you think. Second, a three-tier cake won’t feed 200–300 guests unless the tiers are wider, which creates a shorter, less elegant silhouette. If you want a tall, luxury look and enough cake, you may need extra kitchen cutting cakes or additional tiers. And finally, cons