| Box Style | Self-Locking Mailer Box (Roll End Tuck Front - RETF) |
|---|---|
| Material Options | Kraft Corrugated, White Corrugated, E-Flute, B-Flute, Rigid Stock (Premium) |
| Flute Types | E-Flute (1.5mm), B-Flute (3mm), Custom Flute on Request |
| Stock Thickness | 16pt – 28pt (depending on material selection) |
| Printing Options | Offset Printing, Digital Printing, Flexographic Printing |
| Color Options | CMYK (4 Color Process), Pantone (PMS), Inside & Outside Printing Available |
| Finishing Options | Matte Lamination, Gloss Lamination, Soft-Touch Lamination, AQ Coating |
| Add-Ons | Spot UV, Foil Stamping (Gold/Silver), Embossing, Debossing, Custom Inserts |
| Sizes | Custom Sizes Available (Length × Width × Depth) |
| Minimum Order Quantity | Low MOQ Available |
| Turnaround Time | 3–4 Business Days (Rush Available) |
| Shipping | Flat Packed, Free Shipping Available |
| Eco-Friendly | Recyclable & Biodegradable Options Available |
Custom Tuck Top Mailer Boxes from Custom Boxes Store are a self-locking packaging format where the top flap tucks into the front panel to seal the box securely without tape or glue. Also called Roll-End Tuck Top (RETT) boxes, they are the most widely used mailer box style for ecommerce, subscription, and retail shipping. Available in any custom size with full-color exterior and interior printing. Starting from $0.35 per unit. Low MOQ. Free USA shipping on every order.
The tuck top mailer box — also called the Roll-End Tuck Top or RETT box — is the most commonly used mailer box format in US ecommerce. The design is straightforward: the top flap folds over and tucks into the front panel, locking the box closed without tape or glue. Side dust flaps fold in first to give the top flap something to press against, creating a firm closure that holds through normal courier transit.
That is the mechanics. What makes it the dominant format is that it ships flat, assembles in under 10 seconds, opens cleanly without tools, and gives the customer a proper unboxing experience rather than fighting through packing tape. For ecommerce brands that ship hundreds or thousands of orders, this format reduces packing time while keeping presentation consistent.
Custom Boxes Store produces custom tuck top mailer boxes in any dimension, with full-color exterior and interior printing, for ecommerce brands, subscription businesses, retail companies, and product launches across the USA.
There are many mailer box closure styles — tab lock, ear lock, auto-lock bottom, and magnetic closure. Each has a specific use case. The tuck top format is the right default choice for most brands because it balances three things simultaneously:
Speed of packing — the tuck closure locks in one motion. No tape dispenser, no glue gun, no separate closure mechanism. For fulfillment operations packing 50, 500, or 5,000 orders, this adds up to significant time savings per day.
Clean opening experience — the customer pulls the top flap out, and the box opens. No tearing, no scissors, no forceful pulling. The opening is clean, and the box is often reusable, which customers appreciate and sometimes keep.
Print surface — tuck top mailer boxes have large, flat exterior panels that give full-color printing room to work. Your logo, design, and brand identity can cover the entire exterior. The inside lid panel and interior base are also printable.
Tuck top mailer boxes are not limited to one product category. The format works across a wide range of products and industries:
Apparel and fashion — folded clothing, accessories, and fashion items fit the rectangular format well. The flat shipping means boxes are stored efficiently in warehouse conditions.
Cosmetics and skincare — one of the most common uses. Serums, moisturizers, lip products, and skincare sets fit the box format and benefit from the branded presentation.
Candles and home fragrance — corrugated tuck top boxes protect candle glass during shipping. The print surface works well for premium candle brand aesthetics.
Subscription boxes — the tuck top format is the standard subscription box format. The predictable rectangular shape accommodates a range of products, and the no-tape closure makes the unboxing feel intentional.
Books and stationery — tuck top boxes protect paper products from corner damage and moisture during transit.
Food and specialty goods — artisan food, coffee, chocolate, and specialty consumables use tuck top mailer boxes for direct-to-consumer shipping.
Electronics accessories — phone accessories, cables, and small electronics components ship securely in the corrugated tuck top format.
Corporate and promotional kits — branded corporate gift boxes and promotional product kits are frequently packaged in custom-printed tuck-top mailers.
Custom Boxes Store produces tuck top mailer boxes in three primary material types. The right choice depends on product weight, required transit protection, and desired print surface quality.
Corrugated cardboard — the most common material. Single-wall corrugated (E-flute or B-flute) is the standard for ecommerce shipping. E-flute is thinner and gives a smoother print surface. B-flute is thicker and stronger for heavier or more fragile products. Double-wall corrugated is available for maximum protection.
Rigid paperboard — thicker than folding carton but not corrugated. Used for retail presentation boxes, gift packaging, and lighter products where the corrugated texture is not needed. Gives a very flat, smooth print surface.
Kraft board — natural brown kraft exterior. Used by brands with an organic, raw aesthetic. Can be printed in one or two colors for a natural look, or full-color printed for a contrast between the brown kraft base and the design.
Every tuck top mailer box from Custom Boxes Store is printed to your artwork specifications. Standard printing is full-color CMYK offset or digital print, depending on quantity. Pantone color matching is available for brand colors that need to be exact.
Exterior print options:
Interior print options:
Finishing options:
Customers sometimes ask how the tuck top format compares to other mailer box closure types. Here is a direct comparison:
Tuck Top vs Tab Lock — Tab lock boxes use a die-cut tab-and-slot system that locks more aggressively. The tab lock is better for heavier products or high-volume operations where boxes are moved and stacked before shipping. The tuck top is faster to assemble and gives a cleaner opening experience for the customer.
Tuck Top vs Ear Lock — Ear lock boxes lock at the sides rather than the top. They are more secure under stacking pressure. The tuck top opens more cleanly and gives a larger print surface on the top panel.
Tuck Top vs Magnetic Closure — Magnetic closure boxes are rigid and carry a significant premium per unit. They are used for high-ticket products or luxury gift boxes. The tuck top is the cost-effective format for volume ecommerce shipping.
Tuck Top vs Sleeve Box — A sleeve box adds a printed outer sleeve over the inner box, creating a two-step unboxing. The tuck top is one-piece and faster to pack. The sleeve box adds premium presentation but increases material and packing costs.
For most ecommerce brands shipping 100 to 10,000 orders per month, the tuck top mailer box is the right default. It is cost-effective, fast to pack, and gives full branding.
What is a tuck top mailer box?
A tuck top mailer box is a self-locking packaging format where the top flap folds over and tucks into the front panel of the box, sealing it without tape or glue. Also called a Roll-End Tuck Top (RETT) box, it is the most commonly used mailer box style for ecommerce, subscription boxes, and retail shipping in the USA.
Do tuck top mailer boxes need tape to stay closed?
No. The tuck top closure is self-locking — the flap tucks into the front panel and holds closed through friction. For heavier items or extra security in transit, tape can be added but is not required for standard ecommerce shipping.
What is the difference between a tuck top and a tab lock mailer box?
A tuck top box closes by tucking the top flap into the front panel. A tab lock box closes using die-cut tabs that fit into slots, creating a more aggressive mechanical lock. Tab lock boxes are better for heavier products. Tuck top boxes open more cleanly and are faster to assemble.
What sizes are available?
Custom Boxes Store produces tuck top mailer boxes in any custom dimension. Standard minimum dimensions are 3" x 3" x 1" (L x W x D). There is no maximum size restriction. Share your product measurements and we will quote the right size.
What is the minimum order quantity?
We offer low MOQ on custom tuck top mailer boxes. Contact our team for exact quantities based on your box size and printing requirements.
Can I print the inside of the box?
Yes. Interior printing is available. The inside lid panel is the most commonly printed interior surface — used for thank-you messages, discount codes, brand story, or social handles. Full interior print on both panels is also available.
What materials are tuck top mailer boxes made from?
Standard tuck top mailer boxes are made from corrugated cardboard (E-flute or B-flute). Rigid paperboard and kraft board are also available. Material selection depends on product weight and required protection.
How long does production take?
Standard production is 3–4 business days from artwork approval. Contact our team for rush production availability.
Is shipping included?
Yes. Free shipping is included on every order across the USA.
Can I get a sample before ordering?
Contact our team to discuss sample availability for your specific box dimensions and configuration before committing to a full production run.
