Chief Engineer's Note

20 Years of Structural Design Experience

This custom green corrugated mailer box features a three-layer E-flute corrugated airplane box structure, with precise dimensions of 246×186×56mm, balancing lightweight and protection. The liner board uses 250-300g coated white card paired with an E-flute core (flute height approx. 1.5mm), edge crush strength ≥3.5 kN/m, burst strength ≥1500 kPa, ensuring safe transport. The outer box is printed with spot color dark gray and mint green (or CMYK overprint), the inside of the lid is printed with spot color mint green with dark text, and the interior and bottom continue with the same color liner board for a unified style. The surface can be laminated with matte or glossy film to meet different texture needs. As a custom product, you can flexibly adjust the base color, pattern, and lamination process to create a unique brand packaging.

Technical Specifications

Inner Lid Spot color mint green printing + dark text
Flute Type E-flute (flute height ≈ 1.5mm)
Dimensions (mm) Length 246, Width 186, Height 56
Edge Crush Test ≥3.5 kN/m
Paperboard Type 3-layer E-flute corrugated shipping box (airplane box)
Top Liner Weight 250-300 g/m2 coated white board
Bursting Strength ≥1500 kPa
Surface Finishing Matte lamination / Glossy lamination
Box Base Color & Pattern Spot color dark gray + mint green printing (or CMYK overprint)
Box Interior / Box Bottom Same as lid inner mint green face paper

Global Shipping from China

🚢 Shipping Time (Sea Freight)

  • To US West Coast18-22 days
  • To US East Coast28-35 days
  • To Europe (Main Ports)25-30 days
  • To Australia12-15 days

📦 Supported Trade Terms

  • DDPDelivered Duty Paid (we handle customs and taxes)
  • FOBFree on Board Shenzhen/Guangzhou
  • CIFCost, Insurance and Freight to your port

Frequently Asked Questions


Do I need to pay printing plate / tooling fees?
For orders under 5,000 pieces, a one-time printing plate fee ($50-100, depending on size) applies. For reorders or orders over 5,000 pieces, tooling fees are waived.