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EVF33905

Triangular Double-Wall Slice Tray

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

Pre-glued front point allows flat delivery and quick pop-up
Double-thick walls provide a clean, premium retail edge
Manual roll-over back wall locks the tray securely without tape

About this product

This specialized triangular tray is built for single slices of pie, pizza, or uniquely shaped retail goods. It features double-thick side and back walls that hide raw paperboard edges, creating a rigid, premium presentation on the shelf or in the bakery case.

To keep shipping and storage efficient, the tray is pre-glued at the front point and delivered flat. At the packing station, the operator pops the tray open, folds the side walls inward, and rolls the back wall over to lock the structure in place.

Common uses

Pizza and pie slices
Triangular cosmetics
Novelty retail kits
Wedge-shaped confections

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Retail And Food Service Applications

Slice-Based Bakery And Food Service

The wedge shape matches individual slices of pie, cake, or pizza. When produced with appropriate food-safe boards and coatings, the webbed corners help contain crumbs, while the double walls provide enough rigidity for customers to hold the tray comfortably.

Triangular Novelty And Cosmetic Packaging

For non-food retail, the distinctive footprint stands out on shelves. The rolled edges hide the raw paperboard core, offering a high-end unboxing experience for cosmetics, specialty soaps, or promotional kits.

Wedge-Shaped Confections And Chocolates

Specialty chocolates and molded confections often use triangular footprints. The rigid double walls protect delicate items from side impacts while maintaining a clean presentation.

Promotional Kits And Sampling Programs

Brands using geometric themes for product launches can use this tray to present sample bottles or branded merchandise. The pop-up assembly keeps fulfillment moving quickly during high-volume sample packing.

Fulfillment And Packing Environments

Hand-Packing Stations

Because the front point is glued during manufacturing, the tray pops open into a triangle immediately. The packer only needs to fold the side walls down and roll the back wall over, saving time compared to a fully unglued four-corner tray.

Retail Display And Presentation

The double-wall construction resists outward bowing when loaded. The tuck tongue locks securely into the base, keeping the presentation sharp even after repeated handling by retail staff or customers.

Flat Storage And Logistics

The central crease allows the tray to fold in half and ship flat. This keeps pallet density high for storage, reducing the space needed in crowded bakery backrooms or fulfillment centers.

When To Consider Rectangular Or Standard Box Styles

High-Volume Automated Lines

The final assembly step relies on an operator to manually roll the back wall over the corner gussets and seat the locking tongue. If the packing line relies on automated tray erection, a standard machine-formed tray is often a better fit.

Rectangular Product Footprints

Triangular flat blanks do not nest as efficiently on a rectangular sheet of paperboard as square trays do. If the triangular shape is not strictly necessary for the product, a rectangular tray will improve material efficiency.

Board, Print, And Layout Considerations

Board Caliper And Fold Clearance

The side and back walls fold 180 degrees inward. Heavy corrugated board can crack or crush during these tight folds. This tray performs best with folding boxboard (FBB), solid bleached sulfate (SBS), or very thin micro-flute.

Base Artwork And The Central Crease

To allow the tray to fold in half for flat shipping, a central crease runs directly down the middle of the base and back wall. Graphics and text placed on the floor of the tray should be designed to accommodate this visible fold line.

Coating For Direct Food Contact

If the tray will hold greasy or moist foods like pizza or pie, the paperboard needs a barrier coating. Discuss the specific food type to ensure the right grease-resistant finish is applied.

Outer Packaging For Transit

This is an open-top presentation tray, not a shipping container. If the product will be sent through parcel or courier networks, the tray usually requires a fitted master shipper or mailer to protect the contents.

Adjusting The Locking Tongue And Gussets

Locking Tongue Depth

The tuck tongue on the back wall can be lengthened or shortened to adjust the friction fit in the base slot, depending on how frequently the tray might be opened and reclosed.

Gusset Clearance

The webbed corner flaps fold diagonally inward before the back wall rolls over them. The clearance around these gussets can be tuned to prevent binding if a slightly thicker board is selected.

Double Crease Distance

The parallel creases that form the roll-over walls can be widened. This adjustment helps accommodate different paperboard thicknesses, ensuring the walls fold cleanly without tearing the outer printed surface.

Packing details

Nesting Efficiency And Material Layout

Because the flat blank is kite-shaped, interlocking multiple trays on a single dieboard leaves more unused paperboard than a grid of rectangular trays. This geometric reality affects the overall material efficiency.

Additional notes

Pre-glued front point and flat delivery

The manufacturer folds the blank in half and glues the front tip. This allows the tray to ship flat in dense stacks while still popping open quickly for the packer.

Webbed corners for gap-free edges

The back corners feature webbed gussets that fold inward under the back wall. This prevents gaps, keeping crumbs or small components contained.

FAQs

Does this tray require glue or tape during packing?

No. The front point is glued by the manufacturer before delivery. At the packing station, the tray pops open and the back wall locks manually using a tuck tongue and slot.

Can this tray be used for direct food contact?

The structure is well-suited for slices of pizza or pie, but direct food contact depends entirely on selecting a food-safe board and a grease-resistant coating.

How does the central fold affect base artwork?

A crease runs straight down the middle of the tray's floor so it can ship flat. Any continuous graphics or text placed on the inside bottom will have a visible fold line running through them.

Can this be made from heavy corrugated board?

Heavy corrugated is not recommended. The side and back walls fold 180 degrees inward to create the clean edges. Thick fluting can crush or crack during these tight folds. Folding carton boards or thin micro-flutes work best.

Can I ship this tray through the mail?

Not on its own. It is an open-top presentation tray. For parcel shipping, it should be loaded into a protective outer mailer or shipping box.

How does the triangular shape affect material usage?

Triangular blanks do not fit together perfectly on a rectangular sheet of paperboard. This leaves more unused scrap material between the shapes compared to standard square trays.

Does the tray ship flat or fully assembled?

It ships flat. The manufacturer folds the blank in half and glues the front tip, allowing dense stacking on pallets. The packer pops it open for final loading.

How do the back corners stay closed without glue?

The back corners feature webbed gussets that fold inward under the back wall. When the back wall rolls over and locks, it traps these gussets, preventing gaps and keeping small components contained.