Cake Dowel Calculator

The number depends on the weight of the tiers above and the strength of your dowels. Most standard cakes need 3-5 dowels per tier. Heavier tiers or weaker materials require more dowels. This calculator accounts for a safety factor to ensure stability.

Wooden dowels are the strongest and most traditional. Food-safe plastic dowels are lighter and easier to cut. Bubble tea straws work for lighter cakes and are the easiest to insert. Choose based on the weight of your cake and your personal preference.

Cut your dowels to exactly the height of the tier they are supporting. Insert a dowel into the cake, mark it at the top of the icing, remove it, and cut all dowels to this length. They should sit flush with the top of the cake so the board above sits flat.

Yes, always place a thin cake card or board between each tier. This distributes the weight evenly across the dowels below and makes it much easier to separate the tiers for serving.

The board under each upper tier should be the same diameter as that tier, so it stays hidden under the icing and is invisible once the cake is stacked — it should never be larger than the tier sitting on it. Only the bottom presentation drum is bigger, typically about 5 cm (2 inches) wider than the bottom tier so it shows as a neat border.