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Box Styles & Flutes

an overview of the most common corrugated box styles & flutes used in packaging
corrugated flutes: E flute - one sixteenth inch, B flute - one eighth inch, C flute - three sixteenths inch

Corrugated Flutes

The flute designation calls out the thickness of the overall corrugated board and the flute size. There are a variety of flute sizes available for different applications

For more info see Understanding Corrugated Board Grades.

Regular Slotted Container (RSC) shipper

Regular Slotted Container (RSC)

The RSC is the most common box style, and is a popular choice for shipper boxes. All flaps are the same length, with the long flaps meeting in the middle.

Good for:

shipper boxes • heavy products

industrial
e‑comm
economic
retail
Half Slotted Container (HSC) corrugated box style

Half Slotted Container (HSC)

This is an RSC minus a set of flaps on the top or bottom. Two correctly sized HSCs can also be used as a top and bottom telescoping set.

Good for:

storage boxes • shipper boxes (with cover)

industrial
economic
Full Overlap Slotted Container (FOL)

Full Overlap Slotted Container (FOL)

A variation of the RSC, the top & bottom flaps completely overlap to the edge of the box for additional strength and protection. Good for storing or stacking very heavy items.

Good for:

shipper boxes • very heavy items • long boxes

industrial
e‑comm
Front Loading Box Style

End Loading RSC / FOL

An RSC or FOL that has been flipped to allow for end loading. Corrugation direction can also be changed to maintain strength.

Good for:

shipper boxes • long items

industrial
e‑comm
One Piece Folder (OPF)

One Piece Folder (OPF)

This design creates a sealed container out of a single unglued sheet, excellent for shipping small to large flat items & books.

Good for:

shipper boxes • books • picture frames

industrial
e‑comm
economic
Telescoping Trays

Telescoping Trays

The telescoping tray body and lid is a two-piece box style that can allow for some variation in the depth of the item you are packaging.

Good for:

shoe boxes • clothing boxes

retail
5 Panel Folder (5PF) box style

5 Panel Folder (5PF)

This design is quick and easy to assemble. When sealed, three of the sides are double thickness. Great for long items.

Good for:

shipper boxes • long items

industrial
economic
Indestructo Box Style - resembles classic mailer box but more square

Indestructo Mailer

One of the toughest die-cut mailers around. Great protection for shipping and can be configured with a variety of different closures, flaps, tabs, and locks.

Good for:

electronics • e-commerce

e‑comm
Roll End Tuck Front (RETF)

Rolled End Tuck Front (RETF)

This resealable mailer has many different names and applications. The tabs, tucks, and flaps (a.k.a.- dust flaps, dog ears or cherry locks) can be configured to suit your specific needs.

Good for:

e-commerce • subscription boxes

e‑comm
retail
End-Roll Corrugated Tray Style

End Roll Tray

A tray that folds together without the use of tape or adhesive. It is a flexible design with many possible variations.

Good for:

canned products • product display

retail
Glued Corrugated Tray

Pre-Glued Tray

This tray is supplied with the corners preglued and folded inside. It can be set up instantly, saving labor and without the need for tape or adhesive.

Good for:

plants • beverages

retail

See Different Box Styles in Action!