Box Styles Explained: Tuck End, Crash Lock, Mailer, Rigid and More

Straight tuck, reverse tuck, crash lock, mailer, sleeve, two-piece, magnetic… packaging has its own vocabulary, and it can be confusing when you just want the right box for your product. This guide explains the most common custom box styles in plain English: what each looks like, how it closes, what it is best for and roughly where it sits on cost.

Folding Carton Styles

Folding cartons are made from a single sheet of paperboard that is printed, die-cut, folded and glued. They arrive flat, take up little storage space and are the most common type of retail packaging. See custom product boxes.

Straight Tuck End (STE)

Both the top and bottom flaps tuck in from the same side (usually the back). The front panel stays completely clean, which makes it popular for premium cosmetics and products where the front design matters most.

Best for: skincare, cosmetics, small electronics, premium retail. Cost: low.

Reverse Tuck End (RTE)

The top flap tucks from the back and the bottom flap from the front (or vice versa). It uses board efficiently, which makes it one of the most economical styles.

Best for: supplements, medicines, light retail products, high-volume runs. Cost: lowest.

Crash Lock Bottom (Auto Bottom)

The base is pre-glued so it pops into a locked position as soon as the box is opened. The top usually closes with a tuck flap. It is quick to assemble and much stronger underneath.

Best for: heavier products, bottles, jars, candles and high-volume packing lines. Cost: low to medium.

Snap Lock Bottom (1-2-3 Bottom)

Four bottom flaps interlock by hand. It is stronger than a tuck end base and cheaper than a crash lock, but takes a few seconds longer to assemble.

Best for: medium-weight products where a tuck bottom might open. Cost: low.

Seal End

The end flaps are glued shut rather than tucked, creating a tamper-evident box. Common in food and pharmaceuticals.

Best for: cereal, food products, tamper-evident retail. Cost: low.

Sleeve and Tray (Drawer Box)

A tray slides out of an outer sleeve like a matchbox. It creates a satisfying reveal and feels premium even in folding board.

Best for: gift sets, jewellery, chocolates, palettes, stationery. Cost: medium.

Gable Box

A box with a built-in carry handle at the top, like a small bag. Fun and practical.

Best for: party favours, bakery, takeaway, gifts. Cost: medium.

Pillow Box

A curved box that closes with tuck ends, shaped like a pillow. Lightweight and decorative.

Best for: small gifts, jewellery, gift cards, wedding favours. Cost: low.

Hanging Tab Box

Any carton with a die-cut tab and hole so it can hang on a retail peg.

Best for: accessories, phone cases, small tools, cosmetics. Cost: low.

Display Box

A counter-top box with a tear-away or fold-back front that holds and presents several units at the till.

Best for: lip balms, snacks, small impulse buys. Cost: medium.

Corrugated Styles

Corrugated board has a fluted middle layer between two liners, making it much stronger than folding board. It is the standard for anything sent through the post. See custom cardboard boxes.

Mailer Box (Roll End Tuck Front)

A one-piece box with a hinged lid, double side walls and a front tuck flap. Self-locking and printable inside and out.

Best for: ecommerce, subscriptions, apparel, cosmetics. Cost: medium.

Regular Slotted Carton (RSC)

The classic brown shipping box with four flaps at top and bottom, closed with tape.

Best for: heavy or bulky items, wholesale, removals. Cost: low per volume.

Not sure between these two? Read Mailer Boxes vs Shipping Boxes on our blog, or see custom shipping boxes.

Pizza Box Style

A flat, wide corrugated box with a hinged lid and folded sides, used for pizzas and also for flat items like prints and clothing.

Best for: pizza, flat products, apparel. Cost: low. See pizza packaging.

Rigid Box Styles

Rigid boxes are built from thick chipboard (usually 1.5 to 2.5 mm) wrapped in printed or speciality paper. They do not fold flat (unless made as a collapsible version) and feel solid and luxurious. See rigid boxes.

Two-Piece (Lid and Base)

A separate lid lifts off a base. Can be full-depth or shoulder-neck style for a premium reveal.

Best for: gifts, shirts, shoes, luxury retail. Cost: high.

Magnetic Closure (Book Style)

A lid flap with hidden magnets that opens like a book and snaps shut.

Best for: luxury gifts, cosmetics, PR kits, corporate gifting. Cost: high. See magnetic closure boxes.

Collapsible Rigid

A rigid box that ships flat and folds into shape, combining a premium feel with lower storage and freight costs.

Best for: brands that want luxury without storage headaches. Cost: high. See collapsible rigid boxes.

Rigid Drawer and Flip Top

Rigid versions of the drawer box and hinged lid box, for premium cases that are opened again and again. See flip top boxes.

Quick Chooser

Don’t Forget Inserts and Windows

Almost any style can include a die-cut card insert to hold products in place, or a clear window to show the product. Inserts are essential for glass, sets and anything that rattles.

FAQs

What is the most common box style?

The reverse tuck end carton for retail, and the mailer box for ecommerce.

Which style is the strongest?

Rigid boxes and double wall corrugated cartons. Among folding cartons, crash lock bottoms are the strongest.

Can you make a style that isn’t listed here?

Yes. Send us a photo or sample of the box you like and we will match or adapt it.

Related Guides

• Mailer Boxes vs Shipping Boxes
• Rigid Boxes vs Folding Cartons

Find Your Box Style

Tell us what your product is, how it is sold and how heavy it is, and we will recommend the best style and board. Get your free quote or explore custom printed boxes.