Cake Boards and Boxes

Boards (3–6 mm) are lightweight and ideal for single-tier cakes being collected in person, or where the cake sits inside a box for support. Drums (~12 mm) add rigidity and height, making them the better choice for heavy multi-tier cakes, postal or courier delivery, or when the board doubles as a presentation base at the table. A drum also prevents the cake from sinking on a soft surface.

Allow at least 25 mm (1") between the top of any decoration or stacked tier and the lid. For fondant-covered cakes with tall decorations or toppers, size up to a Tall Box (10×10×10", 12×12×12", or 14×14×12") to avoid the lid pressing on your finish.

No — the corners of a square drum will protrude past the circular base of a round box, preventing the lid from closing. Always match the board/drum shape to the box shape, or use a square box for a square board.

Same-size pairings (e.g. 10" board in a 10" box) work for thin single boards (3–5 mm). Double boards and drums may be fractionally wider due to manufacturing tolerances — size up one inch to be safe, especially for decorated cakes where the icing extends to the board edge.

Match the box size to the drum size (e.g. 12" drum → 12" white box or 12×12×12" tall box). Remember the drum's 12 mm height counts toward total box depth, so factor that in alongside your cake height and decoration clearance.

Yes — our Cake Box Corner Extensions (set of 4) raise the lid height of a standard white box, giving extra clearance for tall decorations on the existing base. They do not increase the footprint of the box, so the board size must still match or be smaller than the box base.