FEFCO Box Codes Explained: The International Standard for Box Styles

If you've ever ordered corrugated packaging from a European supplier, worked on a global packaging standardization project, or reviewed an international shipping specification, you've encountered FEFCO codes. These four-digit numbers — 0201, 0301, 0427 — are the international language of corrugated box design, providing a standardized way to describe box styles that transcends language barriers and regional naming conventions.

The FEFCO-ESBO Code System is maintained by FEFCO (the European Federation of Corrugated Board Manufacturers) and ESBO (the European Solid Board Organisation). While its origins are European, the system has become the de facto global standard for communicating corrugated box designs in international trade.

This guide explains how the code system works, covers the most important box styles in each category, and provides practical guidance for specifying and ordering using FEFCO codes.

How the FEFCO Code System Works

Structure

Each FEFCO code is a four-digit number in the format 0X-YY, where:

• 0X (first two digits) identifies the category of box style (01 through 09)
• YY (last two digits) identifies the specific style within that category

The categories are:

Note: 08xx is intentionally omitted in the current code system.

What the Codes Do and Don't Specify

FEFCO codes specify the construction style of the box — how the blank is cut, scored, and assembled. They do NOT specify:

• Dimensions (length, width, height)
• Board grade (flute type, liner weight, ECT)
• Printing (colors, graphics, locations)
• Material specifications (virgin vs. recycled, white vs. kraft)
• Closures (tape, glue, staples, interlocking tabs)

A complete box specification requires the FEFCO code plus all of these additional parameters. The code is the starting point, not the complete specification.

Relationship to U.S. Conventions

In North America, box styles are commonly described by name rather than code — "RSC," "full overlap slotted container," "tray with lid," etc. The FEFCO code system assigns numbers to these same styles. The most important crosswalk for North American professionals:

Category 02xx: Slotted-Type Boxes

This is the most important category, covering the box styles that account for the vast majority of corrugated production worldwide.

FEFCO 0200: Half Slotted Container (HSC)

The HSC is a slotted box with flaps on one end only. The other end is open. It's used as:

• A tray (flaps become the bottom, product loads from the open top)
• A telescoping component (combined with a matching lid or base)
• A sleeve (slipped over a product that's supported on a separate base)

Applications: Produce trays, industrial parts trays, telescope box components, point-of-purchase display trays.

FEFCO 0201: Regular Slotted Container (RSC)

The 0201 is the undisputed king of corrugated packaging. It's the standard corrugated shipping box that the vast majority of products are shipped in worldwide. An estimated 80%+ of all corrugated boxes produced globally are some variation of the 0201.

Construction: Four panels scored and slotted from a single blank. All flaps are the same length (half the width of the box). When closed, the outer flaps meet at the center of the box. The manufacturer's joint (the glued, taped, or stitched seam that joins the blank into a tube) is along one vertical edge.

Characteristics:

• Extremely efficient to manufacture (printer-slotter + folder-gluer, no die required)
• Fast to erect and close
• Good compression strength when properly closed
• Moderate protection on all six faces
• Small gap at the center where outer flaps meet (may allow dust or moisture ingress)

Limitations:

• The center gap between outer flaps provides less face protection than full overlap styles
• Not ideal for products significantly longer than they are wide (the flaps become very short relative to the box length)
• Limited to rectangular shapes (no curves, angles, or custom features without die-cutting)

FEFCO 0203: Full Overlap Slotted Container (FOL)

The 0203 is identical to the 0201 except that the outer flaps extend the full width of the box, completely overlapping each other when closed. This provides:

• Maximum top and bottom strength — Double-thickness board on the top and bottom faces
• Better moisture protection — No gap for dust or water to enter
• Better stacking support — The double-layer faces resist compression better

Applications: Heavy products, long-term storage, international shipping where moisture exposure is likely, military/government packaging that specifies full overlap.

Trade-off: Uses more board than the 0201 (the longer flaps consume additional material), increasing cost by approximately 10-20%.

FEFCO 0204: Full Overlap, All Flaps Same Length

Similar to 0203 but with all four flaps (inner and outer) extending the full width. This provides maximum face protection but at the highest material cost. Used for heavy or fragile products where top and bottom protection is critical.

FEFCO 0210: Container with Overlapping Top Flaps

A variation where only the top outer flaps overlap (the bottom is standard RSC style). This provides extra protection on the top — the face most likely to be damaged in stacking — while saving material on the bottom.

Category 03xx: Telescope-Type Boxes

Telescope boxes consist of two or more separate pieces that slide together — typically a body and a lid (or a body, lid, and bottom). They provide excellent protection and a premium presentation.

FEFCO 0301: Full Telescope Box

Two separate pieces — a top (lid) and a bottom (tray) — that slide together. The lid fits over the outside of the tray, with the walls of the lid overlapping the walls of the tray.

Characteristics:

• Excellent compression strength (double-wall effect where lid overlaps tray)
• Premium appearance and opening experience
• Can be designed for easy re-closure (no tape needed)
• Good for products that are loaded from the top

Applications: Retail footwear, electronics, gift packaging, premium consumer goods, archival storage.

Trade-off: Requires two separate die-cut components, doubling manufacturing complexity and increasing cost compared to a single-piece RSC.

FEFCO 0310: Design Style Telescope

A variation of the telescope where the body walls are scored to fold inward, creating a double-wall tray without separate die-cut inner walls. More efficient to manufacture than 0301 but slightly less rigid.

FEFCO 0320: Telescope with Reinforced Corners

A telescope box with separate corner pieces that lock into place, creating a structure with exceptional compression strength. Used for heavy products where stacking is critical.

Category 04xx: Folder-Type Boxes

Folders are single-piece constructions where the blank wraps around the product. They're particularly efficient for flat or relatively thin products.

FEFCO 0401: One-Piece Folder

A flat blank with end panels that fold over to enclose the product. The simplest and most material-efficient box construction — essentially a flat piece of corrugated with scores that create sides and ends.

Applications: Books, framed prints, flat electronic components, documents, thin industrial parts.

Advantages: Minimum material usage; ships flat; easy to assemble. Limitations: Limited depth; no separate lid or base; modest structural strength.

FEFCO 0410: Five-Panel Folder

A folder with five panels — the additional panel creates a double-thickness face that provides extra protection for one surface of the product. Common in automotive parts packaging.

FEFCO 0427: Wrap-Around Box

The 0427 is one of the most important die-cut box styles for automated packaging lines. The blank wraps around the product in a continuous motion, with flaps that fold and lock to close the box.

Applications: High-speed automated packaging lines for bottles, cans, cartons, and multipacks. The 0427 is the standard "wrap-around case" used in the beverage, food, and consumer goods industries.

Advantages: Very efficient on automated case-packing equipment; minimal waste; good print surface.

Category 05xx: Slide-Type Boxes

Slide boxes have a drawer-like construction where the inner container slides into an outer sleeve.

FEFCO 0501: Basic Slide Box

A two-piece construction with a tray (drawer) that slides into a sleeve (outer shell). This provides:

• Premium presentation (the sliding motion is visually appealing)
• Good product protection (double-wall effect)
• Easy re-closure

Applications: Premium consumer goods, cosmetics, electronics accessories, gift packaging.

FEFCO 0503: Matchbox Style

A smaller version of the slide box, commonly used for small consumer products. The "matchbox" terminology reflects its resemblance to a traditional matchbox.

Category 06xx: Rigid-Type Boxes

Rigid boxes are non-collapsible constructions assembled from multiple corrugated pieces. They're the heaviest-duty corrugated constructions.

FEFCO 0615: Bliss Box

The Bliss box is a three-piece construction: two end panels and a body that wraps around them. The end panels are stapled or glued to the body to create a very strong, rigid container.

Applications: Heavy industrial products, produce (especially citrus and apples), canned goods. The Bliss box is one of the standard constructions for heavy agricultural packaging.

Advantages: Excellent compression strength; the end panels provide full protection; can be used for very heavy products (up to 100+ lbs in single-wall).

For more on heavy-duty corrugated specifications, see our guide on heavy-duty corrugated for industrial packaging.

Category 07xx: Ready-Glued Boxes

Ready-glued constructions are manufactured as flat blanks with pre-applied adhesive at the manufacturer's plant. They ship flat to the customer and are erected into three-dimensional boxes at the point of use.

FEFCO 0711: Automatic Bottom Box

The 0711 has a pre-glued bottom that automatically snaps into position when the box is opened from its flat state. This eliminates the need to tape or fold the bottom closed, saving assembly time on packing lines.

Applications: E-commerce fulfillment, retail packaging, food service, any application where fast box assembly is valuable.

FEFCO 0713: Auto-Lock Bottom with Tuck Top

A variation that adds a tuck-top closure (no tape needed for the top either). The entire box is assembled without tape — the bottom auto-locks and the top tucks in. Ideal for retail and e-commerce packaging where the unboxing experience matters.

Category 09xx: Interior Fitments

Interior fitments are not boxes — they're the internal components that protect, separate, or organize products inside boxes.

FEFCO 0900 Series: Pads and Liners

Flat corrugated pads placed inside boxes as separators, cushioning layers, or stiffeners.

FEFCO 0920 Series: Partitions

Slotted partitions (cell dividers) that create a grid inside a box. Each cell holds one product unit. Standard configurations range from 2x2 to 6x8 or more cells.

Applications: Bottles, jars, cans, small components — any product that needs to be kept separated during shipping.

FEFCO 0930 Series: Dividers and Inserts

More complex internal fitments including:

• Corner pads and edge protectors
• Suspension packaging (product held away from box walls by corrugated springs)
• Multi-tier inserts that create layers within a box
• Custom product cradles for specific product shapes

Using FEFCO Codes in Practice

International Trade

FEFCO codes are invaluable in international packaging procurement. When specifying packaging for a product manufactured in Asia, packed in Europe, and shipped to North America, using FEFCO codes ensures that all parties understand the exact box construction — regardless of language.

Best practice: Include the FEFCO code as part of your packaging specification document alongside dimensions, board grade, printing specifications, and any custom features that go beyond what the code describes.

Quoting and Procurement

When requesting quotes from multiple converters, specifying the FEFCO code ensures apples-to-apples comparison. "FEFCO 0201, 300x200x150mm, BC double-wall, 48 ECT, kraft" is an unambiguous specification that any converter in the world can quote against.

Design Communication

When working with a converter's design team on a new package, starting with the closest FEFCO code saves time. Instead of describing the desired construction from scratch, you can say "Start with a 0427 wrap-around, but we need to add a perforated front panel for shelf-ready display." The designer immediately understands the base construction and can focus on the modifications.

Limitations of the Code System

While comprehensive, the FEFCO system has limitations:

• Many real-world boxes are hybrids that combine features from multiple FEFCO categories. There may not be a single code that exactly describes the design.
• The system doesn't cover all specialty constructions — proprietary designs, highly innovative structures, and some regional box styles may not have FEFCO equivalents.
• The code says nothing about materials, dimensions, or printing — it's a construction standard only. A complete specification requires much more information.
• Updates are infrequent — New box styles developed by the industry may not have FEFCO codes assigned for years after they become commercially available.

Where to Access the Full FEFCO Catalog

The complete FEFCO-ESBO code catalog is available as a downloadable PDF from the FEFCO website (fefco.org). The catalog includes detailed technical drawings of every code, showing the flat blank, the fold pattern, and the assembled box.

Many structural design software packages (ArtiosCAD, TOPS, PackPro) include FEFCO templates that can be parameterized with specific dimensions to generate production-ready cutting layouts.

FEFCO Codes and Box Pricing

The FEFCO code indirectly affects pricing because construction complexity drives converting cost:

For current pricing trends across corrugated product types, see our price tracker.

Understanding how box style affects cost is essential for making informed specification decisions. A packaging engineer who specifies a FEFCO 0301 telescope when a 0201 RSC with a corrugated pad would provide equivalent protection is costing the company money unnecessarily. Conversely, using a 0201 where a 0301 is needed to protect a fragile product risks damage claims that far exceed the packaging cost savings.

The Relationship Between FEFCO Codes and Other Standards

ASTM and TAPPI Standards

While FEFCO defines box construction styles, ASTM (American Society for Testing and Materials) and TAPPI (Technical Association of the Pulp and Paper Industry) define the testing methods used to evaluate board and box performance. A complete packaging specification combines FEFCO construction codes with ASTM/TAPPI test methods:

• ASTM D4169 — Performance testing of shipping containers
• ASTM D642 — Compression testing of shipping containers
• TAPPI T804 — Edge crush test for corrugated board
• TAPPI T810 — Burst test for corrugated board

NMFC (National Motor Freight Classification)

In the United States, NMFC Item 222 defines the minimum packaging construction required for various product types and weights. NMFC references construction types that correspond to specific FEFCO codes, though it uses its own terminology.

ISO Standards

ISO 6590 (Packaging -- Corrugated Fibreboard Sack) and related standards reference FEFCO constructions for international shipping compliance.

Quick Reference: Most Common FEFCO Codes

For daily use, most packaging professionals need to know these codes:

Memorize these ten, and you'll cover 95% of the box styles you'll encounter in practice.

The Bottom Line

FEFCO codes are a tool -- and like any tool, their value depends on knowing how to use them. For packaging professionals who work in international trade, manage multi-site packaging programs, or communicate with converters across language barriers, fluency in FEFCO codes is a professional advantage.

For those who work exclusively in the North American market with familiar suppliers, FEFCO codes may seem like unnecessary formality. But even domestically, the precision and universality of the code system can improve specification clarity, simplify quoting, and reduce the miscommunication that leads to wrong boxes, wasted materials, and frustrated customers.

Learn the codes for the box styles you use most frequently -- for most professionals, that's 0201, 0203, 0301, and the 09xx interior fitments. From there, you can build your vocabulary as your packaging needs expand.

Further Reading

• The Complete Guide to Corrugated Flute Types
• Die-Cut Corrugated Boxes: When Custom Shapes Are Worth the Investment
• Heavy-Duty Corrugated: Specifications for Industrial Packaging
• CorrugatedNews Price Tracker