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EVF31001

Pre-Glued Double-Wall Locking 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

Double-wall construction on all four sides for a premium feel
Long walls are pre-glued by the manufacturer; ships flat
Short walls lock manually over corner dust flaps

About this product

This premium folding carton tray delivers the clean, thick-walled aesthetic of a rigid setup box while shipping flat to save space. The two long walls are pre-glued during manufacturing, allowing for rapid assembly at the packing station.

To finish the tray, the packer simply folds the long walls upright, turns in the corner dust flaps, and rolls the short walls over them. Triangular tabs and bottom flaps lock the structure securely in place without tape or additional adhesive.

Common uses

Cosmetics
Electronics
High-end bakery
Premium retail kits

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Premium Retail and Presentation Uses

High-End Cosmetics and Electronics

The double-thick walls provide a substantial, high-value frame for premium goods. When paired with a custom insert, the tray securely holds components while offering an unboxing experience similar to a rigid setup box.

Premium Bakery and Confectionery

The clean interior and sturdy walls make this tray an excellent base for artisan foods. The pre-glued long walls speed up fulfillment in busy bakery environments.

Apparel and Accessory Kits

For items like wallets, belts, or folded garments, the thick walls create a high-end presentation. The flat-shipping format keeps inbound freight costs lower than pre-assembled boxes.

Retail Component Displays

Smart home devices and premium hardware benefit from the rigid feel of the double walls. The tray can be paired with a printed sleeve for a complete retail package.

Industries Upgrading from Standard Cartons

High-Volume Fulfillment for Premium Kits

Because the long walls are pre-glued, packers only need to execute the final roll-over locks on the short ends. This reduces assembly time compared to fully unglued double-wall trays while avoiding the bulk of shipping pre-assembled rigid boxes.

Upgrading from Single-Wall Trays

When a standard four-corner tray feels too lightweight for the product's price point, this double-wall design adds visual weight and structural stiffness without changing the basic packing motion.

Replacing Rigid Setup Boxes

Brands looking to reduce storage space and inbound freight costs often switch to this style. It delivers a similar thick-walled appearance but arrives flat and takes up a fraction of the warehouse space.

When to Consider Alternative Tray Styles

Parcel Shipping and Outer Protection

This is an open-top presentation tray. If the product is shipping directly through a courier network, it should be placed inside a fitted outer mailer or shipping carton to protect the contents and keep the tray clean.

Very Heavy Industrial Components

While the double walls add stiffness, the locking tabs are optimized for paperboard. For heavy hardware, a corrugated tray or a tray with reinforced stitching may be a safer choice.

Board, Print, and Assembly Choices

Board Thickness and Lock Geometry

The triangular locking tabs and the fold-over clearance are sensitive to board thickness. Solid bleached sulfate (SBS) or folding boxboard (FBB) are common choices. If a thicker board is used, the lock geometry should be recalculated to prevent the short walls from popping open.

Print Layout and Hidden Panels

Because the inner panels of the long walls are glued flat against the outer walls, they are hidden in the final assembly. Artwork should be planned carefully to ensure graphics align on the visible interior base and the rolled-over short walls.

Insert Choice and Internal Clearance

The double-thick walls reduce the internal footprint slightly compared to the outer dimensions. Any custom insert should be sized to the exact internal clearance, taking the board thickness into account.

Packing Line Assembly Method

The pre-glued long walls make manual packing fast. If you intend to use automated tray-forming machinery, the specific triangular corner locks should be tested on your equipment to ensure smooth erection.

Structural Adjustments for Fit and Function

Bottom Lock Flap Depth

The depth of the bottom lock flaps that rest on the tray floor can be adjusted. A deeper flap provides more friction against the base, which helps keep the short walls securely seated depending on the board finish.

Triangular Tab Angle

The angle and size of the triangular locking tabs can be modified. This adjustment helps tune the lock tension for different board calipers, ensuring the short walls wedge securely into the corners.

Layer Step Crease Clearance

For thicker paperboard grades, the fold clearances can be increased. This allows the inner short walls to roll over the dust flaps smoothly without binding or tearing the corners.

Packing details

Automated Tray Forming and Tooling

While the straight-line gluing of the long walls is standard, fully automated erection of the short walls relies on specific machine tooling to engage the triangular locking tabs. If a tray former is used, the lock design should be validated with the equipment supplier.

Additional notes

Manual versus automated erection

The pre-glued long walls make manual packing fast. If you intend to use automated tray-forming machinery, the specific triangular corner locks should be tested on your equipment.

Board thickness and lock tension

The self-locking short walls rely on precise friction and geometry. Changing the board thickness means the fold clearances should be checked so the locks seat properly without tearing.

FAQs

Do I need to glue this tray myself?

No. The two long walls are pre-glued by the manufacturer before the tray is shipped to you flat. You only need to fold the walls upright and lock the short ends into place.

Can this tray be made from corrugated board?

It is primarily designed for folding carton boards like SBS or FBB. Using corrugated board often needs adjustments to the fold clearances and locking tabs to prevent the thick material from binding or popping open.

Does the double wall affect how inserts fit?

Yes. The double-thick walls reduce the internal footprint slightly compared to the outer dimensions. Any custom insert should be sized to the exact internal clearance, taking the board thickness into account.

Can I ship this tray as is?

This is an open-top tray designed for presentation or retail display. For parcel shipping, it should be placed inside a protective outer mailer or shipping box.

Are all sides of the tray visible for printing?

The outer walls, the inner short walls, and the base are visible. The inner panels of the long walls are glued face-down and will not be seen once assembled.

Why choose this over a rigid setup box?

Rigid setup boxes ship fully assembled, which increases freight and storage costs. This tray ships flat but provides a similar thick-walled, premium appearance once folded.

How are the long walls glued?

The manufacturer folds and glues the inner panels of the long walls flat against the outer walls during production. This straight-line gluing process ensures the tray arrives flat and ready for quick assembly.

Will the short walls stay locked without tape?

Yes, the short walls use triangular tabs that wedge into the corners and bottom flaps that rest against the base. When the board thickness and lock geometry are matched correctly, the walls stay secure without adhesive.