Black Mailer Boxes






Elevate your brand's delivery experience with custom black mailer boxes from Beyond Packaging—the ultimate combination of bold luxury, structural durability, and high-impact packaging. Constructed in the USA from heavy-duty 200#/ECT-32 corrugated board, these solid black mailing boxes deliver maximum protection for up to 10 lbs while ensuring your shipments command attention the moment they arrive on your customer's doorstep. Featuring customizable sizes, deep-dyed all-black stock, and options for striking gold foil stamping, metallic accents, or vibrant spot UV finishes, our self-locking mailers are engineered to transform standard deliveries into highly anticipated unboxing experiences. Perfect for premium retail, subscription boxes, and e-commerce brands, Beyond Packaging delivers this top-tier packaging with fast 4 to 9 business day turnarounds, wholesale pricing, and free shipping throughout the United States. Upgrade your shipping strategy today, secure your products in style, and leave a lasting impression that drives customer loyalty and boosts repeat business.

Custom Dimensions
No limit on dimensions or shapes

No Minimum
Order as low as a single box

High Quality Full-Color
Premium Offset, Digital and Screen Printing

Transparent Boxes Price
No separate plate, die or other setup charges

Fast Shipping
3-5 business days delivery timeline

Live Customer Service
Available 24/7 for support
custom black mailer boxes: Premium Corrugated Packaging Solutions
Transform every shipment into an unforgettable unboxing experience with premium custom black mailer boxes from Beyond Packaging. In a crowded e-commerce landscape dominated by standard brown kraft and plain white packaging, custom black mailing boxes command immediate authority, conveying luxury, sophistication, and superior value before your customer even opens the lid. Designed and manufactured directly in the USA, our all-black mailer boxes provide the perfect synergy of eye-catching aesthetic appeal, maximum structural protection, and targeted brand marketing.
Whether you run a high-end retail shop, a subscription box service, or a fast-growing e-commerce store, Beyond Packaging offers fully customizable, heavy-duty black shipping boxes tailored to your exact specifications. Protect your valuable inventory during transit while building lasting brand equity with every package you send.
Superior Durability Engineered for Safe US Transit
Shipping damage leads to costly product returns and disappointed customers. At Beyond Packaging, our black corrugated boxes are engineered specifically to eliminate movement, withstand harsh handling, and absorb impact during transit via FedEx, UPS, and the USPS.
- Heavy-Duty Wall Construction: Built from 200# Test / ECT-32 Single Wall corrugated board, providing reliable burst strength and vertical crush resistance for loads up to 10 lbs.
- Precision Flute Profiles: Available in sleek E-Flute (approx. 1/16") for space-saving luxury items, gift sets, and jewelry, as well as robust B-Flute (approx. 1/8" thick) for heavier goods, apparel, and subscription bundles.
- Smart Folding & Storage: All mailers ship and store 100% flat to minimize warehouse storage space and reduce freight costs. They quickly fold into ultra-sturdy, self-locking shipping mailers without requiring extra glue or exterior tape.
- Protection Against Transit Hazards: Rigid structural integrity reduces internal shifting, preventing product breakage caused by shipping carrier mishandling.
Complete Customization: Sizes, Printing, & Premium Add-Ons
Stand out against competitor packaging by designing personalized black mailing boxes that showcase your unique brand identity. From interior and exterior black finishes to specialty foil stamping, Beyond Packaging provides total creative freedom.
Flexible Paperboard & Stock Grades
Choose from lightweight 10pt to 28pt cardstock options for retail folding cartons, or heavy-duty Kraft, Bux Board, and Corrugated stocks for heavy-duty shipping requirements. Select our solid, dyed-through black paperboard to ensure full black coverage on both the outside and inside, eliminating unsightly white paper edges.
Popular Standard & Custom Sizes
We manufacture all custom shapes and sizes tailored directly to your products, minimizing unnecessary void fill and lowering dimensional weight shipping fees:
- 6" x 4" x 2" (Part No. ML319_DB | Weight: 0.14 lbs): Compact box ideal for cosmetics, gourmet items, small electronics, and accessories.
- 9" x 6" x 3": Perfect for beauty products, small apparel items, and monthly subscription kits.
- 12" x 12" x 3": Ideal for apparel ensembles, vinyl records, footwear, and large gift presentation boxes.
High-Impact Printing & Finishing Techniques
Printing directly on dark surfaces can pose visual challenges. We utilize advanced printing technologies—including Offset, Flexographic, Digital, UV, and Screen Printing—combined with a specialized white-ink underprint layer to ensure your full-color CMYK artwork and PMS Pantone colors pop with high fidelity.
- Specialty Coatings: Select from Matte Lamination (for a smooth, velvet touch), High-Gloss Coating (for rich color contrast), or Spot UV to highlight selective artwork.
- Luxury Add-Ons: Incorporate Gold/Silver Foil Stamping, Embossing, Debossing, Raised Ink, or PVC Window Cuts to create a tactile, multi-dimensional look.
- Custom Inserts & Cushioning: Pair your black mailers with tailor-made corrugated, foam, or paperboard inserts to lock items in place, enhance safety, and elevate interior product display.
Technical Specifications Overview
| Specification | Standard & Custom Options Available |
|---|---|
| Material Stocks | Corrugated (E-Flute & B-Flute), Kraft, Cardstock (10pt to 28pt / 60lb to 400lb) |
| Strength Rating | 200#/ECT-32 Single Wall (Supports up to 10 lbs depending on flute grade) |
| Color Options | Solid Black (Inside/Outside), Full CMYK, PMS Pantone Match, White Ink Underprint |
| Finishing Options | Soft-Touch Matte, Gloss, Spot UV, Anti-Scratch Lamination |
| Structural Options | Die-Cutting, Scoring, Perforation, Self-Locking Flaps, Custom Inserts |
| Order Quantities | Flexible runs from 100 to 500,000+ units |
| Proofing | 2D Flat View, 3D Digital Mockup, Physical Sample (upon request) |
Why Partner with Beyond Packaging?
Scaling an e-commerce business requires a dependable packaging supplier that delivers high quality, predictable lead times, and competitive pricing.
- Wholesale Bulk Pricing: Lower your cost-per-unit with transparent, tiered wholesale rates that boost your profit margins and help you outpace the competition.
- Fast Turnaround Times: Standard custom production delivers to your door in just 4 to 9 business days, with expedited rush delivery options available in less than a week.
- 100% Free Shipping Across the USA: Enjoy zero hidden delivery fees or freight charges anywhere in the United States.
- Free Professional Design Support: Work directly with our packaging experts to refine artwork placements, select the right box dimensions, and avoid common design pitfalls.
Get started today by contacting our US-based support team by calling (646) 980-3328, emailing us at [email protected], or messaging us on WhatsApp.
Specifications
| Stock Management | In Stock (Customization Required) |
| Dimensions | All Custom Sizes & Shapes |
| Printing | CMYK, PMS, No Printing |
| Paper Stock | 10pt to 28pt (60lb to 400lb) Eco-Friendly Kraft, E-flute Corrugated, Bux Board, Cardstock |
| Quantities | 100 - 500,000 |
| Coating | Gloss, Matte, Spot UV |
| Default Process | Die Cutting, Gluing, Scoring, Perforation |
| Options | Custom Window Cut Out, Gold/Silver Foiling, Embossing, Raised Ink, PVC Sheet |
| Proof | Flat View, 3D Mock-up, Physical Sampling (On request) |
| Turnaround Time | 3-5 Business Days, Rush Available |
Black Mailer Boxes FAQs
Here are the most common questions we get about our box design process.
Still have questions? Get in touch with our support team.








































































