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Custom Mailer with Dust Flaps

Title

A durable self-locking corrugated mailer with added dust flaps for extra product protection and a clean tuck-top closure. Ideal for ecommerce, subscription boxes, kits, and branded product packaging.

Added Protection

Dust flaps help shield contents from movement, dust, and damage.

Clean Closure

Tuck-top design creates a secure, polished presentation.

Quick Assembly

Ships flat and folds together fast for efficient packing.

Customize & Price Your Mailer Box

Title

Enter your dimensions, choose your material and print options, and see your pricing.

  • Product Description

  • Flute Size

  • Dust Flap Protection

Roll End Tuck Top with Dust Flap (RETTDF) boxes are one-piece corrugated mailers built with reinforced roll-end sidewalls, protective dust flaps, and a tuck-top lid. The dust flaps help cover the side openings when closed, creating a more enclosed package and a cleaner finished presentation.

 

RETTDF mailers ship flat, assemble without tape, and provide a strong balance of product protection, structural support, and presentation.

They’re well suited for cosmetics, subscription boxes, gift sets, electronics, accessories, apparel, specialty foods, and other products that benefit from a more secure mailer-style closure.

 

Best for: products that need added side protection, a more enclosed closure, and a polished unboxing experience.

E Flute

E flute is approximately 1/16" thick and gives RETTDF mailers a slimmer, more refined profile with a smoother surface for detailed graphics and high-quality printing. Combined with the RETTDF’s reinforced roll-end sides and protective dust flaps, it provides a strong balance of presentation and protection without making the box feel bulky.

 

Best for: cosmetics, subscription kits, apparel, accessories, electronics, and other lightweight retail or ecommerce products.

 

B Flute

B flute is approximately 1/8" thick and adds more rigidity, cushioning, and stacking strength to the RETTDF structure. The thicker board works with the box’s reinforced sides and dust flaps to provide additional protection for larger, heavier, or more fragile products during shipping.

 

Best for: heavier products, larger RETTDF mailers, fragile items, and shipments needing added durability.

 

Simple rule: Choose E Flute for a slimmer, print-focused RETTDF and B Flute for greater strength and shipping protection.

The added dust flaps on a RETTDF fold inward along the sides before the tuck-top lid closes. This helps cover the openings that can remain exposed on a standard roll end tuck top mailer.

 

The result is a more enclosed interior, better containment around the product, and an additional barrier against dust, debris, and movement during handling and shipping.

 

Because the dust flaps work together with the reinforced roll-end sidewalls, RETTDF boxes are especially useful when you want added protection without sacrificing the clean mailer-style presentation.

 

Best for: subscription products, cosmetics, electronics, accessories, gift sets, specialty foods, and other products that benefit from a more enclosed package.

Added Side Coverage

Why the Dust Flaps Matter

Title

Unlike a standard RETT mailer, RETTDF boxes include internal dust flaps that fold beneath the lid to help cover the openings along each side of the box.

 

That creates a more enclosed interior and helps keep products, inserts, and presentation materials better contained during handling and shipping—all while maintaining the clean tuck-top appearance.

 

Then underneath, three short benefits:

Reduced Side Openings

Dust flaps help cover the gaps along the sides of the lid when the box is closed.

Better Containment

Helps keep products, inserts, and packing materials more securely inside the mailer.

Added Side Protection

Creates an extra layer between the contents and the outside environment during handling and shipping.

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