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ICB20901

Self-Locking Display Bulkhead

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

Builds a 150mm thick hollow frame from flat board
Secured by four hidden locking triangles
Usually produced via flatbed routing for V-cuts and bevels

About this product

This self-locking bulkhead forms a thick, premium structural frame or base for retail displays and exhibition furniture. Designed for heavy rigid materials like 16mm Inverted Corrugated Board (ICB) or honeycomb, it creates the appearance of solid architectural construction while shipping completely flat.

Instead of using glue or hardware, the hollow walls fold into place and are secured by four separate triangular locking plates. This friction-fit system holds the mitered corners tight, making it an excellent choice for temporary retail fixtures that need a high-end look and straightforward on-site assembly.

Common uses

Retail POP display bases
Exhibition and event furniture
Architectural retail backdrops

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Practical Uses For Thick-Walled Bulkheads

Premium POP Display Bases

Provides a sturdy, thick-walled foundation for freestanding retail displays. The hollow frame elevates the product presentation and gives temporary corrugated fixtures the visual weight of permanent furniture.

Exhibition and Event Furniture

Useful for creating temporary counters, backdrops, or structural supports at trade shows. The flat-pack design reduces transport volume, while the tool-free assembly speeds up booth setup.

Freestanding Retail Backdrops

Creating temporary walls or partitions in retail environments that need to look permanent and substantial without the cost of traditional carpentry.

Heavy-Duty Product Pedestals

Elevating premium items off the floor, using the thick walls to support the presentation and draw attention in a busy retail aisle.

Retail And Exhibition Environments

Retail Merchandising

Brands rolling out high-end temporary fixtures often need components that look substantial but remain easy for store staff to handle. This bulkhead delivers an architectural aesthetic without the weight of wood or MDF.

Event Fabrication

Event builders can use this structure to quickly assemble branded environments. Because the entire frame and its locking plates can be cut from a single sheet of rigid board, it simplifies sourcing and logistics.

Pop-Up Shops and Activations

Short-term retail spaces where fast setup and premium aesthetics are required without the cost or labor of permanent construction.

When To Consider Alternative Display Structures

High-Volume Automated Fulfillment

This is a specialized display component requiring manual folding and the insertion of separate locking plates. If you need a standard primary package or a high-speed automated tray, a traditional folding carton or corrugated tray is a better fit.

Standard Corrugated Displays

The V-cut and bevel-cut joints are specifically designed for thick, rigid boards (typically 10mm to 16mm). If your display relies on standard thin corrugated board, standard die-cut bases with traditional locking tabs will perform better.

Material, Edge, And Routing Decisions

Rigid Board Selection

This design relies on materials that can be cleanly V-cut and bevel-cut, such as ICB or honeycomb board. The exact material thickness is critical, as the locking slots and triangle slits must be cut to match the board caliper exactly.

Edge Finishing

When using honeycomb board, the V-cuts will hide the core on the folded corners, but the raw outer edges of the frame may expose the internal honeycomb structure. Decide whether your retail environment requires edge-banding or if the raw edge fits the aesthetic.

Production Route and Tooling

Because of the board thickness and the 45-degree miter joints, this bulkhead is typically produced on flatbed routers equipped with V-cut and bevel-cut tools, rather than standard die-cutting equipment.

Flat-Pack Delivery vs. Pre-Assembly

Deciding whether store staff will assemble the frames on-site using the locking triangles, or if they will be shipped pre-assembled for immediate placement.

Adjusting The Frame Dimensions

Frame Depth and Proportions

The overall footprint and the depth of the hollow walls can be adjusted to suit different display needs. However, increasing the wall depth changes the leverage on the locking triangles, which should be physically tested for stability.

Nesting the Locking Plates

To optimize material use during routing, the four separate locking triangles can often be nested within the central waste cutout of the main frame blank.

Print and Branding Surfaces

The large central panel and wide outer walls provide uninterrupted areas for direct flatbed printing before the board is cut and folded.

Packing details

Material Thickness and Locking Tolerances

The friction-fit locking system relies entirely on the board thickness. If you prototype the display in 16mm board and later switch to 10mm board for production, the template's slot widths and offsets must be recalculated, or the corners will gap and the locks will fail.

Additional notes

Print surfaces and flatbed printing

Because the structure is cut from a single flat sheet, graphics can be applied via direct flatbed UV printing before the board is routed. The central panel and the outer faces of the hollow walls provide large, uninterrupted branding areas.

FAQs

Does this bulkhead require glue or hardware to assemble?

No. The frame folds into shape and is held together by four separate triangular plates that slide into pre-cut slots on the back. This friction fit secures the mitered corners without adhesive, though glue can be added for permanent installations.

Can this be made from standard corrugated board?

This specific structure is designed for thick, rigid materials like 10mm to 16mm honeycomb or Inverted Corrugated Board (ICB). Standard thin corrugated board is usually too flexible for the V-cut miter joints and friction locks to function properly.

How is this display component manufactured?

It is typically produced on a large-format flatbed router. The process uses V-cut tools to create the 90-degree folding hinges and bevel-cut tools to create the 45-degree mitered corners.

What happens if we change the board thickness?

The dimensions of the locking slots and the slits in the triangular plates are strictly tied to the board's caliper. If you change the material thickness, the template must be updated, or the pieces will not fit together.

How is the bulkhead shipped to the retail store?

The main frame and the four locking triangles ship completely flat. This minimizes transport volume, allowing large architectural display bases to be shipped efficiently and assembled on-site.

Can the hollow walls support heavy retail products?

While 16mm rigid board is inherently strong, the actual weight-bearing capacity depends on the specific board grade, the overall dimensions, and environmental humidity. Physical load testing is always recommended before a full retail rollout.

How are the corners finished?

The corners use bevel cuts to create 45-degree miter joints. When the walls are folded upright, these joints meet cleanly to hide the internal board structure, giving the appearance of a solid architectural frame.

Can the locking triangles be replaced or ordered separately?

Yes. Because the locking plates are separate pieces, they can be nested in the waste areas of the main sheet during production, or cut separately if replacements or extras are needed for a rollout.