A cake slice box is a small printed carton shaped to hold one wedge of cake so a bakery can sell it to go without the frosting smearing against the lid. The Best Price Boxes makes custom cake slice boxes to your slice size with no minimum order, and if you bring a written quote for the same specs we will beat it.
How a slice stays upright inside the box
A loose slice slides. It slides forward when the box tilts, and it slides sideways when someone sets the bag down on a car seat. The fix is geometry. A good slice box is cut with a wedge-shaped footprint, so the point of the slice sits in a narrow corner and the wide crust edge is supported by a wall. Most designs add a folded-in flap or a paperboard cradle under the base so the slice cannot rock.
The top matters as much as the base. Tall layer cakes need headroom for piped decoration, while a flat cheesecake wedge does not. Measure the tallest point of your real slice, not the one you drew on the spec sheet, because a lid that touches the frosting ruins the sale.
Sizing your slice box
Cut one representative slice and measure three things: the length from point to crust, the width across the crust, and the height at the tallest spot. Add roughly 1/8 inch of clearance per side so the slice goes in without scraping, and add extra height if you pipe rosettes or stack fruit. If your slices vary between cake flavors, give us the largest slice and we can size one box to fit all of them, or draw two sizes.
Plan the footprint around your slicing pattern. Eight cuts from a 9 inch round gives a different wedge than twelve cuts from a 10 inch round, and the box depends on that angle.
One more practical point: slices travel in bags, on trays and in delivery totes, so ask where yours will end up. A slice box that rides flat in a cooler bag can be shallower than one that gets carried upright in a paper handle bag, and that changes the dieline.
Board, windows and print
Most slice boxes run on folding carton paperboard, typically somewhere in the 16 to 24 pt range, or on kraft board when you want a natural bakery look. Heavier board resists a sagging base under a wet slice. A clear window lets customers see the layers, and the window should be sized so any film patch never touches the frosting either.
- Folding carton paperboard or kraft board
- Full-color CMYK printing or Pantone color matching
- Matte or gloss aqueous coating, soft-touch lamination on request
- Foil stamping or embossing on the lid for gift slices
- Optional window cutout, with or without a film patch
- Any wedge or rectangular footprint you supply
Food-contact rules depend on your product and your state, so confirm what liner or coating your cake needs with your own regulatory adviser. We print the artwork and labelling you supply.
When a different box is the better call
If you sell whole cakes or half sheets, a standard cake box is the right format. For tall celebration cakes with dome toppers, look at tall cake boxes. If your counter is mostly handheld items such as turnovers and croissants, pastry boxes make more sense than wedge cartons. You can also see everything we make for bakeries in the bakery boxes category.
Next step: send us your slice dimensions and a quantity, even if it is a single box, and we will draw the dieline and quote it. That is true for a café testing one flavor and for a chain running thousands.
Frequently asked questions
What is a cake slice box?
A cake slice box is a small carton cut to hold one wedge of cake upright for takeaway. The wedge-shaped footprint and a supporting flap or base stop the slice from sliding, so the layers and frosting reach the customer looking the way they left the counter.
How do I size a cake slice box?
Measure one real slice for length from point to crust, width across the crust, and the height at its tallest point. Add about 1/8 inch of clearance per side, plus extra height for piped decoration. Send those numbers and we will draw the dieline to fit.
What is the minimum order for custom cake slice boxes?
There is no minimum order. You can order one box to test a flavor and its fit, or ten thousand for a chain of cafes. The price-beat guarantee applies at any quantity when you bring a written quote for the same specifications.
Can cake slice boxes have a window?
Yes. A cutout window shows the layers, and it can be left open or covered with a clear film patch. Size the window so the film never touches the frosting, because frosting that sticks to the film looks messy when the customer opens the lid.
Are cake slice boxes food safe?
We do not certify food contact on this product. Whether you need a grease-resistant coating or a liner depends on your cake and your local rules, so check with your own regulatory adviser. We print the artwork and labelling copy that you supply.
What board is used for cake slice boxes?
Most bakeries choose folding carton paperboard, usually in the 16 to 24 pt range, or kraft board for a natural look. Heavier board holds up better under a moist slice. We can advise on weight once we know your cake type and slice size.
More Custom Bakery Boxes
See the full Custom Bakery Boxes range, or explore related options with no minimum order and our best-price guarantee:
