Hold the Burger Upright
A burger is a soft, stacked product that changes shape as soon as the lid closes. The bun compresses, sauces move, loose toppings shift and a tall build can lean before the order reaches the pickup counter. Custom Burger Boxes need enough internal space to contain that movement without giving the burger so much room that it slides across the base.
Start from the finished burger, not the bun diameter on a supplier sheet. Measure the widest assembled footprint and the tallest realistic build after the patty, cheese, vegetables and sauces are added. A double stack or brioche burger can need very different headroom from a thin smash burger using the same bun diameter.
The aim is not maximum empty space. It is a controlled envelope that keeps the lid off the crown bun, leaves room for normal ingredient variation and limits sideways travel during carrying.
Headroom Has a Limit
Too little headroom lets the lid press into the bun and can push toppings outward. Too much headroom creates unnecessary volume and gives a tall burger more room to tip.
A useful fit check closes the carton over a production-representative burger without forcing the lid. Press lightly on the lid where another meal box might sit during staging. If that pressure transfers directly into the bun, the structure needs more clearance or better load support around the food.
Sauce Moves Under Pressure
Sauce is not only a grease issue. Closure pressure can drive it toward the wrapper, sidewall or locking edge. Loaded burgers with multiple sauces, melted cheese or soft toppings need enough lateral space that closing the box does not squeeze the build.
This is especially important when staff wrap the burger before boxing it. The packed footprint is the wrapped burger, not the unwrapped menu item.















