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EVF31379

Flat-Storing Clamshell Takeaway Box

Available in a wide range of custom configurations & material selection.
Order 1 sample. Or order 100K+ units. Or anything in between.
Affordable delivery across North America.
Design support, warehousing, testing, assembly available.
Widest machinery capability in America via 30+ specialist partner plants.

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Product details

Top highlights

Delivered completely flat to maximize back-of-house storage
Requires manual folding of eight corner locks before loading
One-piece design with a hinged lid and front tuck closure

About this product

The EVF31379 is a one-piece folding carton clamshell designed for takeaway, bakery, and food service. It features angled walls and a hinged lid, securing with a front tuck tab to keep contents enclosed during handoff.

Unlike pre-glued clamshells that ship nested and take up valuable warehouse space, this tray is delivered completely flat. It uses eight mechanical hook-and-slot corners, trading faster assembly time for maximum storage efficiency.

Common uses

Food truck takeaway
Bakery and pastry handoff
Event catering

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Takeaway and food service applications

Takeaway and fast food

Provides a classic burger box shape for on-demand food service. The hinged lid keeps food covered during short trips, and the front tab allows the customer to easily open and reclose the box.

Bakery and pastry handoff

Offers a secure mechanical closure for delicate items. The flat-storing nature is highly valued in small bakery kitchens where space is at a premium.

Deli and prepared meals

Works well for sandwiches, salads, and sides. The wide opening allows easy loading, while the mechanical locks keep the tray rigid during customer transport.

Catered events and outdoor dining

Easy to transport flat to a venue and assemble on-site before the rush begins, keeping logistics simple for off-site catering teams.

Food service operations with limited storage

Food trucks and kiosks

Operations with very tight square footage often cannot accommodate pallets of pre-erected, nested trays. This flat-packed design allows hundreds of boxes to be stored in a single small stack.

Ghost kitchens and delivery stations

Facilities managing multiple menus can stock these flat blanks efficiently, assembling them only as orders come in to save prep-station space.

Pop-up events and festival vendors

When storage space is limited to a single vehicle, flat-packed clamshells ensure vendors have enough packaging for the day without requiring multiple supply runs.

When assembly speed outweighs storage space

High-volume fast food lines

If your service line requires boxes to be opened instantly with one hand, compare this to a pre-glued nested clamshell. The eight manual locks on this flat-storing version will slow down a high-speed packing rhythm.

Courier and parcel delivery

This friction-lock design is built for handoff and local delivery. If you are shipping food through a courier network, the angled walls and tab locks will require a sturdy corrugated outer shipper to maintain shape during mixed-carrier handling.

Board coating and assembly labor

Grease and moisture barriers

The tray design works well for food, but the board itself must be specified with a grease-resistant or poly-coated barrier if it will hold wet or oily items.

Staff assembly bandwidth

Because this box requires folding and inserting eight separate hooks into slots, confirm that your team has the time to build these boxes either during service or in prep batches beforehand.

Board tear resistance

The mechanical corner locks rely entirely on the paperboard's strength. Choosing a board with adequate tear resistance prevents the hooks from failing when the tray is loaded.

Print coverage and branding

Since the box is die-cut and delivered flat without gluing, it easily supports full-coverage printing on both the inside and outside surfaces for high-impact branding.

Base footprint and wall angle

Wall angle (bevel)

The outward slant of the walls can be adjusted. The default 103-degree angle provides a reliable balance of presentation and closure fit, but it can be steepened or flattened based on the product.

Hook and slot friction

The width of the slots and the size of the hooks can be fine-tuned during prototyping to match the exact thickness of your chosen board, ensuring the locks are secure but easy for staff to assemble.

Base footprint and depth

The length, width, and depth can be scaled to fit specific menu items, from shallow pastry trays to deep burger boxes, while maintaining the same eight-point locking mechanism.

Packing details

Die-cutting and stripping quality

The intricate hook-and-slot corners require precise manufacturing. Clean stripping of the slot waste is essential so operators aren't slowed down by leftover board scraps during assembly.

Vertical stacking limits

The angled walls are designed for presentation and nesting open trays, not for bearing heavy vertical weight. Stack assembled, loaded boxes with caution.

Additional notes

Grain direction and hinge flexibility

The main hinge connecting the lid to the base flexes 180 degrees. The board's grain direction should run perpendicular to this hinge to prevent cracking during closure.

FAQs

Does this box require gluing?

No. It is a completely mechanical tray. The base and lid are formed by manually inserting hook tabs into slots, meaning it ships flat and requires no adhesive.

Is this faster to pack than a standard burger box?

No. Because it ships flat and requires eight corners to be locked by hand, it takes more time to erect than a pre-glued, nested clamshell.

Can this hold greasy or wet foods?

The tray design is appropriate for food, but the paperboard itself must be specified with a grease-resistant or poly-coated barrier for direct contact with wet items.

How is this delivered?

It is delivered completely flat. This makes it highly efficient for shipping and back-of-house storage compared to nested trays.

Can I ship this in the mail?

Not on its own. The friction locks and angled walls are designed for handoff and local delivery. Courier networks often apply heavy top loads that can pop the tray open unless it is packed inside a corrugated outer shipper.

Can the hook locks be adjusted if they are too tight?

Yes. The width of the slots and the size of the hooks can be fine-tuned during prototyping to match the exact thickness of your chosen board.

What board thickness makes sense for this tray?

A standard folding carton board around 0.5mm is typical, but the key factor is tear resistance. The board must be strong enough that the corner hooks do not tear when the tray is loaded.

Can the wall angle be changed?

Yes, the outward slant of the walls can be adjusted. However, changing the angle alters the closure fit, so prototyping is recommended to ensure the lid still closes smoothly.