A custom mailer box is a durable, self-locking corrugated carton designed specifically for safe transit and a premium unboxing experience. Thanks to their sturdy construction and interlocking flaps, these boxes require no adhesive tape for assembly, making them highly efficient for fulfillment centers and e-commerce sellers. They are universally suitable for shipping a wide range of products, including cosmetics, electronics, apparel, and subscription kits.
A custom mailer box is a durable, self-locking corrugated carton designed specifically for safe transit and a premium unboxing experience. Thanks to their sturdy construction and interlocking flaps, these boxes require no adhesive tape for assembly, making them highly efficient for fulfillment centers and e-commerce sellers. They are universally suitable for shipping a wide range of products, including cosmetics, electronics, apparel, and subscription kits.
Global brand owners and wholesalers choose this type of packaging because it offers the perfect balance of transit protection, lightweight cost-efficiency, and maximum brand exposure. As an experienced Chinese custom packaging factory, we provide comprehensive OEM/ODM services. Whether you need a standard wholesale mailer box or a fully custom printed box with intricate interior designs, we help you leverage custom packaging to elevate your brand identity and leave a lasting impression on your customers.

| Feature | Specification Details |
|---|---|
| Product Name | Custom Mailer Box |
| Material | Corrugated cardboard (E-flute, B-flute), Kraft paper, Art paper, Coated paper |
| Size | 100% Custom (Length x Width x Height) based on your product |
| Color / Printing | CMYK full color, Pantone (PMS), Flexo printing, Offset printing, Blank |
| Surface Finish | Matte/Glossy lamination, Spot UV, Foil stamping (Gold/Silver), Embossing/Debossing, Soft-touch |
| Box Style | Roll End Tuck Top (RETT), Roll End Tuck Front (RETF), Tab-locking mailer |
| Insert | Custom EVA foam, EPE foam, Die-cut corrugated, Cardboard, Blister plastic, Velvet lined |
| MOQ | 500 pcs (Negotiable for trial orders) |
| Sample Lead Time | 3 – 5 business days |
| Mass Production Time | 10 – 15 business days (depending on order volume) |
| Usage | E-commerce shipping, Subscription boxes, Retail packaging, Gift sets, PR boxes |
| OEM/ODM | Fully supported (Custom structural design and graphic printing) |
We offer end-to-end personalization to ensure your packaging aligns perfectly with your brand guidelines:
Our versatile mailer boxes are the packaging solution of choice across multiple high-growth industries:

Q1: What is your Minimum Order Quantity (MOQ)? A: Our standard MOQ is 500 pieces per size/design. However, we are flexible and can accommodate lower quantities for initial trial orders, though the unit cost will be slightly higher.
Q2: How long does it take to receive my custom printed boxes? A: Sample production takes 3-5 business days. Mass production generally takes 10-15 business days. Shipping time depends on your location and chosen freight method (ocean freight typically takes 20-30 days, while air express takes 5-7 days).
Q3: Can I get a sample before placing a bulk order? A: Yes! We highly recommend ordering a sample. We offer plain structural samples, digital print samples, or fully finished pre-production samples depending on your needs.
Q4: What file format do you need for the artwork? A: Please provide your artwork in vector format such as AI, PDF, CDR, or EPS. Ensure all fonts are outlined and images are at least 300 DPI in CMYK color mode.
Q5: Will you help me check if my design is print-ready? A: Absolutely. Our prepress team reviews every design file for bleed, resolution, and alignment before sending you a final digital proof for approval.
Q6: Are your mailer boxes environmentally friendly? A: Yes. Our standard corrugated boards are made from a high percentage of recycled content and are 100% recyclable. We also offer FSC-certified paper options upon request.
Transform your product presentation and streamline your shipping process with our premium custom mailer boxes. Whether you are an emerging e-commerce seller or a global brand importer, our factory-direct capabilities guarantee high-quality, cost-effective packaging solutions tailored to your exact specifications.
[Request a Free Quote Today] Contact our packaging specialists now to get custom dielines, expert advice, and competitive wholesale pricing within 24 hours.
Premium materials and in-house finishing options to match every brand’s packaging vision.
250-400 GSM, natural brown or bleached white. Ideal for mailers and eco-friendly packaging.
1200-1500 GSM premium grey board for rigid gift boxes and luxury retail packaging.
157-350 GSM coated art paper. Smooth surface for high-resolution CMYK printing.
E / F / B flute options for shipping boxes and protective mailer packaging.
Gold, silver, rose gold, or holographic foil for premium logo finishing.
Raised logo detail. Adds tactile premium feel without extra color cost.
Glossy highlights on a matte surface. Perfect for making logos stand out.
Velvet-like tactile finish. Popular for luxury skincare and jewelry packaging.
Recessed logo detail. Adds tactile premium feel without extra color cost.
Protective surface lamination. Enhances color depth and extends packaging lifespan.
A 10-year Guangzhou packaging factory serving 600+ brands across the US, Europe, and Australia.
We operate our own 6,000 sqm facility in Guangzhou with full in-house production — no middlemen, no outsourcing. From sheet printing to final packing, every step happens under one roof.
Our equipment includes Bobst die-cutting lines for precise creasing, Heidelberg 5-color offset presses for color-accurate printing, and automated gluing machines that keep lead times to 15-22 days, even on complex custom orders.
Send us your artwork or spec sheet — we’ll get back with a quote, material samples, and 3D mockup within 24 hours.