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EVF52050

Custom Paperboard File Holder

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-cut holes for external document fasteners
Multi-creased rounded spine helps resist corner crushing
Delivered flat for manual folding and loading

About this product

The EVF52050 is a one-piece paperboard file holder designed for document storage and branded presentations. Delivered flat and assembled by hand, it features a multi-creased rounded spine, inward-folding edge flaps, and pre-cut holes to accept common metal or plastic file fasteners.

Because it relies on external hardware rather than glued pockets, this folder accommodates growing document stacks while keeping the pages bound. The wide, flat base and curved hinges help distribute pressure along the spine, making it useful for archival use or frequent handling.

Common uses

medical records
corporate presentations
archival storage
kitted training manuals

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Document storage and kitted presentations

Branded presentations and training manuals

The wide spine and fastener mounting make this folder useful for thick training packets or corporate presentations. The inward-folding edge flaps help keep pages aligned during hand-to-hand distribution.

Medical records and archival files

For long-term storage, the rounded spine reduces board fatigue compared to a single sharp crease. The hardware-based retention helps keep documents in order even with frequent opening and closing.

Legal and financial document storage

When sequential page order matters, the hardware binding points provide a firm hold for thick contracts or audit files.

Kitted onboarding materials

The flat base and wide spine offer enough capacity to hold punched employee handbooks alongside loose supplementary guides.

Corporate and medical document handling

Office and administrative procurement

Buyers sourcing custom office supplies can match the pre-cut holes to their existing inventory of metal prongs or plastic binding hardware, helping maintain compatibility across departments.

Healthcare and clinic administration

Patient files often need frequent updates and hardware binding. The multi-crease spine accommodates growing file thicknesses over time.

Corporate training and event planning

Event coordinators can use the wide spine and custom print surfaces to present thick, branded workbooks to attendees.

When to compare glued pocket folders or outer mailers

Loose document distribution

If the documents are not punched or bound with hardware, a traditional presentation folder with glued bottom pockets is a better choice. This file holder relies on external fasteners to hold the pages.

Parcel shipping

This folder has open top and bottom edges. If the documents need to be mailed or shipped via courier, the folder should be placed inside a rigid mailer or shipping envelope to protect the contents.

Hardware alignment and board choices

Matching fastener hardware

The diameter and spacing of the pre-cut holes should be specified to match the exact metal or plastic fasteners you plan to use. Common office fasteners vary, so confirming these dimensions early helps avoid binding issues.

Board grain and spine cracking

The rounded spine is formed by multiple narrow folds. To help the board fold cleanly along these creases, the paperboard grain direction should run parallel to the spine.

Print visibility and two-sided branding

Because the folder opens like a book and the edge flaps fold inward, the interior surface is very visible. If the inside needs branding or instructions, two-sided printing should be discussed.

Hole stripping and punch-out clearing

The fastener holes need clean stripping during die-cutting. Discuss whether the holes will be fully removed at the factory or left as punch-outs for the user to clear.

Spine curvature and fastener adjustments

Spine width and curvature

The flat central base can be widened for thicker document stacks. The individual folding panels that create the curved hinge can also be adjusted to accommodate heavier board calipers.

Hole placement and diameter

The vertical and horizontal positions of the fastener holes, as well as their diameter, can be shifted to align with specific top-bound or side-bound document hardware.

Edge flap width

The inward-folding side flaps can be widened to provide more overlap and tension against the inserted documents, or narrowed to reveal more of the page surface.

Packing details

Flat delivery and storage

Because these folders use no gluing, they ship and store completely flat, taking up minimal space until they are needed for document assembly.

Additional notes

Surface finish for frequent handling

If the folder will be used for archival storage or frequent presentations, a protective varnish or laminate can help reduce fingerprinting and edge wear.

FAQs

Does this folder include the binding fasteners?

The folder is manufactured and delivered as a flat paperboard sheet with pre-cut holes. You will need to source and insert the metal or plastic fasteners during assembly.

How is the rounded spine formed?

The spine consists of a flat central base flanked by multiple narrow panels. During manual assembly, each narrow panel is folded slightly inward, creating a smooth curve rather than a sharp corner.

Can I use a very thick board for extra durability?

Thicker boards can be used, but the width of the narrow spine creases should be increased to match. If the creases are too narrow for a thick board, the material may bind or crack when folded.

Can this folder be mailed on its own?

The top and bottom edges are open, and the folder does not have a native locking closure. It should be placed inside a rigid mailer or envelope for postal or courier transit.

What keeps the pages from sliding out the side?

In addition to the hardware fasteners, the folder features full-height edge flaps that fold inward. These flaps rest against the document stack, providing slight tension and helping keep the pages aligned.

Why is grain direction important for this folder?

The spine requires multiple adjacent folds to create its curved shape. Running the paperboard grain parallel to these folds helps the material bend smoothly without splitting or tearing the printed surface.

Can the hole diameter be changed?

The holes can be adjusted during the design phase to fit the specific metal or plastic binding hardware you plan to use.

Does the folder need gluing?

It is a single-piece folder that folds into shape without adhesive. It relies entirely on manual folding and the external fasteners to hold its shape.