Custom Cake Boxes

Cake boxes are sized from the cake board, not the cake. Most decorated cakes sit on a drum or board 25-50mm wider than the sponge, and a box cut to the sponge will not take it. Give us the board diameter and we work outward from there.

Height is where most orders go wrong. A buttercream dome, a drip finish, or a topper can add 50-80mm above the nominal cake height, and a lid resting on a decoration ruins it. Measure to the highest point of the finished cake including anything that stands proud, then add clearance - we normally build in 15-20mm above the tallest point.

The single-serve formats are a different structure entirely. Cupcakes need an insert with a cavity per cake, or they arrive on their sides - a six or twelve cavity punched tray is the standard, sized to the case diameter rather than the cake. A window in the lid is close to essential here, because decorated cupcakes are bought on appearance.

Slice boxes are small, wedge or square, and their whole job is to stop the slice tipping onto its side. A shallow footprint with a snug fit does it; there is no insert that helps a slice that is free to slide. Both formats are usually sold from a counter, so they are branded surfaces as much as containers.

The most common cake damage happens in a car, not in a bakery. Two structural details reduce it. A continuous flat base - a four-corner tray rather than a folding carton with a seam - gives the board nothing to catch on when the cake shifts. And a lid that lifts vertically off, rather than a hinged or tucked lid that has to be tilted, means the cake is never angled during opening.

For delivery rather than collection, a corrugated build is worth the cost. Single-wall folding carton at 300mm across will flex when carried by one hand, and flex is what cracks a finished surface.

A cake box that goes into a fridge or a chilled display is in a different environment from one that sits on a counter. Board absorbs moisture from cold humid air, softens, and loses stiffness - a box that was rigid at the counter can bow after a few hours chilled.

Heavier stock helps, and a corrugated base helps more. For cakes that live refrigerated, we generally specify a heavier caliper than the size alone would suggest, and recommend a coated interior so condensation on the inside surface does not soak straight into the board. Stock weights and coating options are set out on our materials and printing page.

Packaged cakes sold to retailers or through delivery platforms generally have to carry ingredient and allergen information, and the US list of major allergens has expanded in recent years - sesame is now included. Whether that applies depends on how you sell, so confirm your obligations before the artwork is finalised.

Practically, reserve a panel. Ingredient and allergen blocks are long, and a box designed with a full-bleed photograph on every face has nowhere to put them. The base or one side panel is the usual home, and a printed interior can carry storage and serving guidance without touching the exterior design.

A window converts well at a bakery counter, and the choice is whether to fill it. An open aperture costs nothing, lets the cake breathe, and suits same-day sale - it is what most counter bakeries use. A food-safe film keeps dust and handling off the surface, which matters when a cake sits on display for longer or travels through a delivery network.

Either way, keep the cut-out clear of the corners. A large aperture near a fold takes strength out of the lid exactly where a 300mm box needs it most, and a bowed lid touching buttercream undoes the reason for the window.

For a bakery, the box is the only thing that leaves the shop with the customer and stays in their kitchen until the cake is gone. That makes it a longer-lived advertisement than anything else you print. A logo, a phone number or handle, and an ordering prompt on the lid is the most effective placement, since the lid faces up on a table for the life of the cake.

Send the board diameter and the height of the finished cake at its tallest point, topper included. Say whether it is collected or delivered, and whether it sits chilled. One thing to flag at the quote rather than later: if the cake touches the board directly, we specify food-grade stock, and that cannot be changed after the fact. Related: four corner cake boxes, chocolate boxes, and the food packaging range.