Ask around any bakery and someone will tell you about the cake that didn’t make it, and nine times out of ten the recipe was fine, it was the box, half an inch too short, so the lid sat on the buttercream the whole drive home and lifted the piping clean off. Painful.
Below are the cake box sizes we’d actually use for the cakes people order most. Plus the one number nearly everybody forgets (height, we’ll get to it).
Cake Box Sizes at a Glance
Boxes get listed by the inside of the base. Our rough rule is two inches wider than the cake, so you’ve got an inch all the way round for your fingers when you lift it out (trust us, you’ll want that inch).
| Cake | Box size we’d pick (L x W x H) | Notes |
|---|---|---|
| 6 inch round | 8 x 8 x 5 in. | Smash cakes, small birthdays. |
| 8 inch round | 10 x 10 x 5 in. | The everyday one. |
| 9 inch round | 10 x 10 x 5 in., or 11 x 11 if it’s frosted thick. | Tight fit, check first. |
| 10 inch round | 12 x 12, and 6 in. tall. | Party size, feeds a crowd. |
| 12 inch round | 14 x 14, again 6 in. tall. | Heavy one. Thick board underneath, please. |
| Quarter sheet (9 by 13) | Roughly 11 x 15, 4 in. tall. | Office birthdays. Flat top. |
| Half sheet (12 by 18) | Around 14 x 20, 4 in. tall. | Corrugated for this one (paperboard sags). |
Ballpark numbers, that’s all. Add a chocolate drip or a spray of sugar flowers down one side and you’re sizing up anyway, so measure your own cake, not ours.
Height Is Where Cake Boxes Go Wrong
Here’s the thing. Width gets measured, height gets guessed. And it’s the height that ruins cakes. Your usual frosted two-layer comes out near 4 inches, hence everyone grabbing 5 inch boxes, but stack three or four layers and you’re looking at 6 or 7 before a single topper goes on.
Ruler out. Board to the tallest bit (the topper on its stick counts, so do candles), plus an inch. Selling tall layer cakes most weeks? Then honestly just order tall cake boxes and stop doing the math every time.
Round, Square and Tiered Cakes
Round cakes go in square boxes. Always. It sounds odd, but a square box gives you corners to grab and the cake can’t roll if it shifts a little.
Square cakes need that same inch of room per side, and a bit more if the corners are sharply piped. Tiered cakes are another story entirely. Most bakers box each tier on its own and stack on site, because a three tier cake in one tall box is heavy, wobbly and kind of terrifying to carry up a flight of stairs. Delivering it stacked anyway? Front-opening tall box. Sliding a cake in sideways beats lowering it from above while your arms shake, ask anyone who’s tried.
Cake Boards, Windows and Box Material
The cake board matters as much as the box. It should match the box base, or sit about half an inch smaller, so the board can’t slide around inside. A sliding board is how cakes end up smeared against one wall.
Windows sell cakes. A clear panel on the lid lets the customer see the decoration before they even open it, which is half the fun at a party. For material, printed paperboard works for most cakes up to about 10 inches. Anything bigger or heavier, like a half sheet or a cake that’s travelling a long way, is safer in corrugated board, which doesn’t bow in the middle when you lift it. Our custom cake boxes with logo come in both, with or without a window.
Delivery and Pickup Tips
A few things we see bakers learn the hard way:
- Fridge first, box second. A cold cake laughs at potholes in a way a soft room-temperature one just won’t.
- Floor of the car or the trunk, somewhere flat. Not the seat. Seats tilt.
- A non-slip mat under the box costs almost nothing and stops it sliding on turns.
- For long drives in summer, a cooler bag or the car’s AC on full is your friend.
Shipping cakes by courier is a whole different job, and honestly most bakeries don’t. If you do, the cake box goes inside a rigid outer carton with padding on every side.
Other Bakery Box Sizes
Cakes are usually only part of the menu. We’ve put together the same kind of guide for cupcake box sizes and for cookie box sizes, and there’s a broader read on packaging for cakes and pastries. If you need cupcake boxes with inserts to match your cake boxes, see custom cupcake boxes. The full range sits under bakery packaging boxes.
Ordering for the holidays? December is busy for every bakery box printer, us included, so it pays to get your order in early.
Cake Box Sizes FAQs
What size box do I need for an 8 inch cake?
We’d go 10 by 10 with 5 inches of height for a normal two-layer 8 inch. Toppers or a third layer, bump it to 6.
How tall should a cake box be?
About an inch taller than the cake at its highest point. For a standard frosted two-layer cake that usually means 5 inches.
Should the cake board be the same size as the box?
Close to it. A board that matches the base, or is up to half an inch smaller, keeps the cake from sliding around.
Can I get cake boxes printed with my bakery’s logo?
Yes. Custom cake boxes are printed with your logo and colors, in the sizes above or any size you need, with or without a window.
Shopping for something else too? Our guide to chocolate box sizes has the standard sizes in one place.
Want a price? Tell us your cake sizes and how many boxes you need on our quote page and we’ll send a free quote and proof.