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ECMA D20.20.20.50

Tapered Tray with Hinged Lid

Available in a wide range of custom configurations & material selection.
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Product details

Top highlights

Delivered as flat, unglued blanks
Usually erected with automated tray-forming equipment
Integrated friction-tuck lid with thumb cut

About this product

The D20.20.20.50 is a tapered folding carton tray featuring an integrated hinged lid and a clean, rolled top edge. Built for premium retail, bakery, and food service presentation, it offers a distinctive pyramidal or wedge-shaped footprint that stands out on the shelf.

Because of its angled walls and corner design, this carton is delivered as a flat, unglued blank. It is typically erected and glued by automated tray-forming equipment at the packing facility, making it well-suited for volume production.

Common uses

Bakery and pastry packaging
Pizza or pie slice boxes
Premium retail presentation
Takeaway and deli packaging

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Retail and Food Service Presentations

Premium Bakery and Confectionery

The tapered walls and clean, rolled top edges provide a high-end presentation for pastries, chocolates, and baked goods. The integrated lid keeps the product protected while allowing for easy reopening.

Specialty Food Service

When configured with a wedge-shaped footprint, this carton acts as a dedicated slice box for pizza, pie, or cake. The friction-tuck lid secures the contents for takeaway.

High-End Retail Presentations

For cosmetics, gifts, or specialty items, the pyramidal shape offers a distinctive unboxing experience. The rolled edges hide the corner joints, maintaining a polished look.

Takeaway and Deli Packaging

The integrated lid and rigid tray base make this a practical choice for prepared foods, keeping items contained during direct hand-off to the consumer.

High-Volume Packing and Retail Channels

High-Volume Automated Packing

This carton is built for efficiency on automated lines. Because it ships entirely flat, it maximizes pallet density. At the packing station, tray-forming equipment shapes the blank, applies adhesive to the corners, and folds the edges to lock the shape before loading.

Retail Display and Shelf Presentation

The angled walls catch ambient light differently than standard rectangular boxes, helping the product stand out on retail shelves. The clean top edge supports premium branding.

Food Service and Quick-Serve Channels

In fast-paced food service environments, having a pre-formed tray with an attached lid simplifies the final hand-off, provided the location has the volume to support automated forming or pre-assembly.

When to Consider a Different Tray Style

Manual Hand-Packing Operations

If you do not have tray-forming equipment, erecting this carton by hand requires manually applying adhesive and holding the splayed walls in place until the glue sets. For manual packing, an unglued friction-lock tray or a pre-glued crash-lock carton is often a better choice.

E-commerce and Parcel Shipping

The friction-tuck lid and tapered walls are designed for retail display and direct hand-off, not rough courier networks. If shipping directly to consumers, this tray typically needs a secure outer shipper to prevent crushing and accidental opening.

Separate Lid Requirements

If the product will be film-wrapped or if a separate, detached lid is preferred for display purposes, an open tapered tray may be a more practical starting point.

Equipment Compatibility and Board Selection

Tray-Forming Equipment Compatibility

The exact taper angle and depth of the carton need to match the tooling on your tray-forming equipment. Steep tapers can cause the internal corner flaps to clash during automated assembly.

Board Grade and Caliper

The short walls of the pyramidal variant fold 180 degrees inward to trap the glued corners and create a clean top edge. Paperboard handles this tight fold well, while thicker corrugated materials may crack or jam the machinery.

Closure Security

The size of the thumb cut and the depth of the front retaining lip can be modified to balance ease of opening with closure security, depending on how often the consumer will open the package.

Delivery State and Storage

Because these cartons are delivered as flat blanks rather than pre-glued sleeves, they require less storage space but demand specific assembly equipment at the point of use.

Taper Angles and Closure Adjustments

Taper Angle and Wall Splay

The difference between the base dimensions and the top opening dictates the outward splay of the walls. This angle can be adjusted to fit specific products, provided it remains within the limits of the forming machinery.

Thumb Cut and Retaining Lip

The thumb cut can be resized or reshaped, and the retaining lip depth can be adjusted to change how tightly the lid locks into place.

Base Footprint Proportions

The base can be configured as a square, a long rectangle, or a trapezoid, allowing the tray to accommodate everything from round pastries to triangular slices.

Board and packing details

Flat Blank Nesting and Material Yield

Because the flat blank is a complex shape with angled panels, it nests less efficiently on a master sheet than a conventional rectangular carton. This can increase material usage per unit, which is often offset by the operational speed of automated forming.

Pyramidal Versus Wedge Footprints

Pyramidal Footprint (Standard)

A rectangular base with four outward-splaying walls. The short walls feature 180-degree fold-over panels that hide the glued corners and create a smooth, finished top edge.

Wedge or Slice Footprint

A trapezoidal base that is wider at the back and narrower at the front, creating a wedge shape. Well-suited for slice-based food service, this variant relies on conventional glued flaps rather than 180-degree rolled edges.

Additional notes

Grain Direction for Hinged Lids

To prevent the lid hinge from cracking and to help the retaining lip fold cleanly, the board's grain direction is typically specified to run parallel to the long walls.

FAQs

Assembly and Production

Can this carton be supplied pre-glued?

Because of the tapered walls and corner design, this carton is typically delivered as a flat blank. It is formed and glued at the point of packing rather than being pre-glued by the manufacturer.

Is it practical to assemble this tray by hand?

Hand assembly requires manually applying adhesive to four corners and holding the angled walls in place until the bond sets. This is usually too slow for volume production, making automated tray-forming equipment the standard choice.

Materials and Finish

Can this be made from corrugated board?

Standard corrugated board is usually too thick for the 180-degree rolled edges on the short walls, which can lead to cracking. Paperboard is the common choice for this design.

Shipping and Route

Does the lid stay secure during transit?

The lid uses a friction tuck under a front retaining lip. This is secure enough for retail handling and food service takeaway, but it will likely pop open if subjected to the tumbling of a parcel courier network without an outer shipper.

Design and Fit

Can the taper angle be customized?

The top opening and base dimensions can be adjusted to change the wall angle. However, the new geometry needs to match the tooling of your tray-forming equipment.

How does the tray support stacking?

Because the base is smaller than the top opening, the bottom of one tray does not rest directly on the walls of the tray below it. Stacking relies entirely on the stiffness of the closed lid and the overall board strength.

What changes if I need a wedge shape instead of a pyramid?

The base proportions change to a trapezoid, wider at the back and narrower at the front. This is often used for pizza or pie slices and may use standard glued flaps instead of rolled edges.

How is the lid opened and closed?

The lid hinges from the back wall and features a front flap that tucks under a retaining lip on the tray. A thumb cut is usually included to make reopening easier.