Packaging Terms Beginner

Mailer Box

Also known as: E-commerce Box, Roll End Tuck Top, Literature Mailer

Definition

A mailer box is a style of corrugated box specifically designed for e-commerce and direct-to-consumer shipping. Unlike regular shipping boxes (RSC), mailer boxes feature a tuck-top lid that folds over and locks into place, creating a sleek, tape-free closure and premium unboxing experience.

Mailer Box Features

Design elements:

  • One-piece construction
  • Self-locking tabs (no tape needed)
  • Clean, flush exterior
  • Smooth interior surface
  • Easy opening for customers
  • Flat shipping and storage

Mailer Box vs. Regular Shipping Box

Feature Mailer Box RSC Box
Closure Tuck-top, self-locking Tape required
Appearance Premium, clean Functional
Assembly Pre-glued, fold Fold and tape
Cost Higher Lower
Branding area Excellent (interior and exterior) Limited
Best for DTC, subscription, premium General shipping

Common Mailer Box Sizes

Size Dimensions Use Case
Small 6" × 4" × 2" Jewelry, cosmetics, small items
Medium 9" × 6" × 3" Apparel, accessories
Large 12" × 9" × 4" Multiple items, larger products
XL 15" × 12" × 5" Shoes, bulky items

When to Use Mailer Boxes

Ideal for:

  • Subscription boxes
  • Direct-to-consumer brands
  • Premium products
  • Gift-ready items
  • Products with unboxing experience
  • Influencer/PR packages

Consider alternatives when:

  • Shipping heavy items (RSC stronger)
  • Budget is primary concern
  • Industrial/B2B shipping
  • Oversized products

Customization Options

Printing

  • Full-color exterior printing
  • Interior printing (surprise reveal)
  • Simple logo stamp or sticker
  • Kraft with minimal design

Materials

  • White corrugated (premium look)
  • Kraft (eco-friendly aesthetic)
  • Colored corrugated (brand matching)
  • Recycled content

Finishes

  • Matte coating
  • Gloss coating
  • Soft-touch lamination
  • Foil stamping
  • Embossing/debossing

Mailer Box Costs

Quantity Plain White Custom Printed
50 $1.50-3.00 $3.00-6.00
250 $1.00-2.00 $2.00-4.00
1,000 $0.60-1.50 $1.00-2.50
5,000+ $0.40-1.00 $0.75-1.50

Custom printing minimums typically start at 100-250 boxes.

Mailer Box Suppliers

Supplier MOQ Lead Time
Packlane 10 2-3 weeks
Arka 50 2-3 weeks
Fantastapack 100 2-4 weeks
The Custom Boxes 50 2-3 weeks
Alibaba suppliers 500+ 4-8 weeks

Tips for Mailer Boxes

  1. Order samples first - Test fit and quality
  2. Right-size carefully - Too big looks cheap
  3. Consider inserts - Tissue, stickers enhance experience
  4. Design both sides - Interior is part of unboxing
  5. Test shipping durability - Send test packages
  6. Plan inventory - Custom boxes have lead times
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