Interactive 3D

1 / 3

EVF31102

4-Corner Glued Collapsible 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.

Get pricing

Free white-glove consultations. Blazing-fast response time. Fast quotes.

Product details

Top highlights

Pre-glued corners for fast manual setup
Ships completely flat to save storage space
Best suited for paperboard, not thick corrugated

About this product

The EVF31102 is a pre-glued folding carton tray that ships flat and erects when the side walls are pulled upright. Often called a 4-corner Beers tray, it uses diagonal corner webs to collapse completely flat, eliminating the need for packers to fold and lock individual corners by hand.

Because the corners are permanently sealed before delivery, this tray supports fast-paced retail, bakery, or kitting lines. The multi-point gluing process is generally suited for repeat packing programs where the labor savings on the packing floor outweigh the initial production planning compared to unglued trays.

Common uses

Bakery boxes
Apparel trays
Retail kitting
Component sorting

Get a quote

Share what you know. We'll take it from there. Or email us at info@herculeindustrial.com

Describe your project *

Approximate quantity *

Size if known

Files or competing quote (optional)Drag files here or choose filesAdd drawings, photos, dielines, quotes, specs, or other useful files.Max 5 files, 25 MB total.

Name *

Email *

Phone

Optional

More details

You can skip this whole part, or open a section and answer only what you know.

Size and quantity

Detailed dimensions

Units US customary (inches)Metric

What do your dimensions describe?

Length

Width

Height

Size notes

Quantity notes

Materials and print

Paperboard preference

Add details for paperboard preference

Paperboard details

Print and artwork

Add details for print and artwork

Print, finish, or artwork details

Shipping or storage context

Custom changes or unusual needs

What will be packed in this tray?

How will the tray be closed or covered?

Is this for a one-time project or an ongoing packing program?

Current box or specs

Do you have a current box, spec, or target sample?

Add details for do you have a current box, spec, or target sample?

Current box, known specs, or current problem

Destination ZIP or region

Company

Any deadline or timing constraint?

High-Speed Packing and Retail Presentation

Fast-paced manual kitting

When packing multiple components into an open tray, the time spent folding and locking corners adds up. This pre-glued tray allows operators to pull the walls up in a single motion, keeping the packing line moving quickly.

Retail and bakery presentation

The clean, glued corners provide a sharp presentation for baked goods, apparel, or retail assortments. The open top allows for easy loading before the tray is wrapped in film or slid into a separate sleeve.

Apparel and soft goods sorting

Clothing and textiles often require shallow, wide trays for neat stacking. The flat-shipping nature of this tray means large quantities can be kept near the sorting tables without taking up excessive room.

Component staging and work-in-progress

For manufacturing or assembly lines that need temporary open bins to move parts between stations, this tray sets up quickly and can be broken down flat again if needed.

Apparel, Bakery, and Kitting Environments

High-volume fulfillment centers

Operations that process thousands of trays per shift benefit most from the pre-glued corners. The labor savings on the packing floor make the initial production planning worthwhile.

Space-constrained packing stations

Because the trays arrive completely flat, a large number of units can be kept directly at the packing station without taking up the space required by rigid setup boxes.

Retail backrooms and store-floor assembly

Store employees can set up these trays quickly without needing a dedicated packing table or complex folding instructions, making them useful for seasonal displays or gift kitting.

When to Consider Unglued or Lidded Trays

Short runs or prototype testing

If you are running a small trial or a short digital run, a standard roll-end tray that locks together by hand is often a better choice. The 4-corner gluing process is generally reserved for larger repeat programs.

Heavy products requiring corrugated board

This tray relies on the board folding 180 degrees at the corners. Thick corrugated flutes create too much bulk when folded flat, which can cause the tray to spring open. For heavy items, consider a manually assembled corrugated tray.

Board Grade, Run Size, and Print Choices

Board folding endurance

The diagonal webs must fold completely flat for shipping and then open cleanly. Virgin paperboards like SBS or FBB are usually recommended because they resist cracking on these sharp 180-degree folds better than heavily recycled grades.

Run size and delivery expectations

This tray requires a manufacturer with a multi-point folder-gluer. Discuss your expected order volumes early, as the production route for 4-corner gluing makes this tray most practical for repeat programs.

Print surface and branding

Since the tray is open, both the interior and exterior walls are visible to the end user. Decide if two-sided printing is necessary for your retail presentation.

Insert and partition compatibility

If you plan to use dividers or custom inserts to separate kitted items, verify the internal dimensions carefully. The diagonal corner webs take up a small amount of interior space when the tray is erected.

Flap Clearances and Base Dimensions

Glue flap tapers

The internal glue flaps can be tapered to ensure they clear the folding machinery and do not interfere with the product during loading.

Layer step corrections

If the tray will be used with a matching lid, the template can adjust the flap heights slightly to account for the board thickness, ensuring the lid fits without binding.

Base dimensions and aspect ratio

The length and width can be adjusted to fit specific products, but the tray must remain rectangular. The 45-degree diagonal creases are mathematically required for a standard rectangular tray to fold flat.

Packing details

Diagonal crease geometry

The 45-degree diagonal creases in the corners are mathematically required for a standard rectangular tray to fold flat. Altering this angle will prevent the tray from collapsing properly.

Additional notes

Flat delivery and storage

Because the glued webs fold inward, the entire tray ships completely flat. This maximizes the number of trays per pallet and minimizes the storage footprint at the packing station.

FAQs

Does this tray require tape or glue during packing?

No. The corners are permanently glued before delivery. The packer simply pulls the side walls up, and the tray locks into its 3D shape.

Can I ship this tray directly through a parcel network?

This is an open-top tray designed for primary product containment or retail display. It requires an outer shipping box or mailer for parcel transit.

Can this be made from corrugated board?

It is generally restricted to paperboard grades. The 180-degree folds at the corners create too much bulk if made from corrugated board, which can prevent the tray from lying flat.

When does a pre-glued tray make sense over a hand-assembled one?

Pre-glued trays are useful when packing labor is the main bottleneck. For large runs, the time saved on the packing floor outweighs the specialized production route. For short runs, an unglued, hand-assembled tray is usually more practical.

Can I add a hinged lid to this template?

While lids can be added to trays, a fully attached lid that also folds flat usually requires a different base template, such as a 6-corner glued box.

What causes the corners to crack?

The diagonal webs fold completely back on themselves. If the board is too thick, too dry, or has short fibers, the tension can crack the coating or the board itself. Proper material selection prevents this.

Can I use custom inserts with this tray?

Yes, but the internal diagonal webs must be accounted for. Inserts should be sized to clear these corner webs so they sit flat on the base.

Can I get a single prototype of this glued tray?

Prototypes can be cut and glued by hand to verify product fit and dimensions, but they will not perfectly replicate the machine-glued tension of a full production run.