EVF31378

Paperboard Clamshell Burger Box

A one-piece, hinged-lid paperboard tray designed for high-volume food service. The factory glues all eight corners and delivers the cartons in nested stacks, allowing counter staff to pull a single box, load the meal, and tuck the lid closed in seconds.

Because the corners are formed with glued tabs rather than folded webs, this style is a strong fit for solid foods like burgers and sandwiches, but it is not intended for heavy liquids or sauces.

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  • Available in a wide variety of configurations.

At a glance

  • Delivered pre-glued and nested for instant use
  • Integrated hinged lid with a front tuck lock
  • Built-in steam vents help manage moisture

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Takeout and Food Service Applications

Fast Food and Food Trucks

A strong fit for burgers, sandwiches, and combo meals. The nested delivery means hundreds of boxes can be stacked in a small footprint right at the packing station.

Bakery and Deli Takeout

Works well for pastries and dry goods where a quick, secure closure is needed without the cost of a separate lid.

Stadium and Event Concessions

Provides a rigid base for eating on the go, with a hinged lid that keeps food covered while moving through crowds.

Institutional Cafeterias

Useful for grab-and-go meals and pre-portioned items where rapid assembly and easy stacking are priorities.

High-Volume Packing Environments

High-Volume Food Service

Because the factory glues eight separate corner tabs before delivery, this tray is typically chosen for repeat programs where the speed of pulling a pre-glued tray from a stack justifies the initial production setup.

Limited Counter Space Operations

The draft angle allows the boxes to nest deeply inside one another. This vertical stacking minimizes the footprint required at the packing station compared to flat blanks that need folding space.

Delivery and Takeout Programs

Balancing heat retention with crispness is critical for delivery. The native vent holes allow steam to escape, which helps prevent fried foods from becoming soggy during transit.

When to Consider Web-Corner or Flat-Delivered Trays

Wet foods and heavy sauces

Because the corners are cut and glued, thin liquids can seep through the seams. If you are packing wet foods, compare this to a web-corner clamshell, which folds without cuts to create a leak-resistant base.

Limited storage for nested stacks

While nesting saves space at the counter, pre-glued trays still take up more warehouse volume than completely flat blanks. If back-room storage space is severely restricted, consider a flat-delivered tray that staff fold on demand.

Coatings, Nesting Pitch, and Venting

Barrier Coatings

Standard folding boxboard can handle dry items, but hot or greasy foods often benefit from a poly or PLA coating. The adhesive used for the corners must be compatible with your chosen coating.

Nesting Depth and Draft Angle

The outward slope of the walls determines how deeply the boxes sit inside one another. A steeper angle saves shipping space but must be carefully balanced to ensure the stacks do not jam when staff pull them apart.

Steam Vent Sizing

The native cutouts on the lid hinge release steam to prevent condensation. These can be resized or repositioned based on how much heat retention versus crispness your food requires.

Board Caliper and Rigidity

The thickness of the paperboard affects both the overall rigidity of the tray and how the nested stacks behave. Heavier portions may require a thicker board, which in turn changes the nesting pitch.

Adjusting the Clamshell Profile

Draft Angle Modification

The angle of the side walls can be adjusted to change the nesting depth or to accommodate specific food shapes, though this requires careful testing to avoid stack jamming.

Front Lock Profile

The width and taper of the front tuck tongue can be adjusted to balance a secure hold during transit with an easy, one-handed opening for the customer.

Vent Hole Placement

While the standard vents are located near the rear hinge, additional cutouts can be added to the side panels if more airflow is needed.

Packing details

Die-Cutting and Food Safety

The small vent holes must be cleanly stripped during the die-cutting process to ensure no loose paperboard scraps remain in the food area.

Additional notes

Heat retention versus venting

The built-in vents allow steam to escape, which keeps fried foods crisp. If you are packing items that need to retain maximum heat, the vents can be reduced or removed during specification.

FAQs

How are these boxes delivered to the restaurant?

They arrive fully glued and nested inside each other in tall stacks. Your staff do not need to fold or glue anything; they simply pull the top box off the stack.

Can this box hold liquids or greasy foods?

It is not liquid-tight because the corners are formed by glued tabs with small seams. For greasy foods, the board should be specified with a grease-resistant barrier coating.

Why is this considered a high-volume package?

Because the factory glues eight separate corners before delivery, this tray is typically produced in larger runs. This setup makes the carton fast to use on the packing line, but it is often less practical for very short trials where a hand-folded tray might be easier to source.

Why do nested stacks sometimes jam?

Jamming happens if the draft angle (the outward slope of the walls) is too steep or if the board thickness is not accounted for in the nesting pitch. The draft angle must be verified during specification to ensure smooth release on the packing line.

Do my staff need to fold these boxes before use?

No. The factory glues the corners, so the box is ready to load the moment it is pulled from the stack.

Can we change the size of the steam vents?

Yes. The vent cutouts can be enlarged, reduced, or removed entirely depending on whether your food needs to retain heat or release moisture.

What board types work well for hot food?

Folding boxboard (FBB) or solid bleached board (SBB) are common, often paired with a poly or PLA coating to prevent grease from soaking through the paperboard.

How secure is the front tuck lock during delivery?

The front tongue inserts into a slit on the base, providing a secure friction fit for normal handling. If the box will be placed in a larger delivery bag, the lock helps keep the lid closed against shifting.

A fast-loading clamshell that keeps your packing line moving and your food protected.