Custom Mailer Boxes

Custom mailer boxes are corrugated or chipboard packaging boxes fully printed with your brand, designed to protect products in transit and create a memorable unboxing experience for every customer. At Urgent Custom Boxes, we produce custom printed mailer boxes with no minimum order, free worldwide shipping, free professional design support, and full-color printing on every panel inside and outside.

✔ No Minimum Order

🌐 Free Worldwide Shipping

⭐ Free Design Support

🕒 7 to 12 Day Turnaround

GET A FREE QUOTE ORDER A SAMPLE

500+ Brands Trust Us

4.9/5 Star Rating

10,000+ Orders Fulfilled

Worldwide Delivery

What Are Custom Mailer Boxes?

A custom mailer box is a self-locking corrugated or chipboard packaging box, printed inside and outside with your brand, that ships directly to your customer without requiring additional outer packaging.

Unlike standard RSC shipping boxes, custom mailer boxes use interlocking tab-lock flaps that require no tape and no glue to seal. Every panel of the box, including the inside lid, is a printable surface, giving your brand two stages of visual impact: the outside creates the first impression at the doorstep, and the inside delivers the unboxing moment your customers share on social media.

For direct-to-consumer (DTC) brands, every custom mailer box is a brand touchpoint. It is not just packaging. It is the first physical handshake between your business and your customer.

Mailer Box vs Shipping Box

Feature	Custom Mailer Box	Standard Shipping Box
Assembly	Self-locking, no tape needed	Requires tape or glue
Printing	All panels including inside	Exterior only
Purpose	Branded DTC and e-commerce shipping	Bulk freight and warehouse use

Types of Custom Mailer Boxes We Offer

Every product, every brand, and every shipping need is different. Urgent Custom Boxes produces six core types of custom mailer boxes, each engineered for a specific use case. Choose the type that fits your product and we handle the rest.

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Corrugated Mailer Boxes

Corrugated mailer boxes use E-flute or B-flute corrugated board to provide maximum protection for fragile, heavy, or high-value items during transit. Built with a 32 ECT rating as standard, corrugated custom mailer boxes support up to 65 lbs per shipment, making them the preferred choice for electronics, glass products, ceramics, and any item that needs structural protection beyond standard cardboard.

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Kraft Mailer Boxes

Kraft custom mailer boxes are made from recycled kraft paper certified to FSC and SFI standards, offering a natural brown aesthetic that communicates eco-consciousness and artisan quality. Printed with water-based, soy-based inks that are fully biodegradable, kraft mailer boxes are the go-to choice for organic brands, sustainable product lines, apothecary businesses, and any brand that wants packaging to reflect genuine environmental values.

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Luxury Mailer Boxes

Luxury custom mailer boxes are produced using premium board stock with high-end finishing options including soft-touch lamination, spot UV coating, foil stamping in gold or silver, and emboss or deboss treatments. These finishes transform a standard box into a tactile, high-perceived-value experience that signals premium quality before the product is even seen. Ideal for cosmetics, jewelry, fashion accessories, and high-end gifting brands.

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Subscription Mailer Boxes

Custom subscription mailer boxes are designed for recurring monthly shipments, built with durable corrugated walls that withstand the repeated handling cycles of subscription fulfillment networks. Full inside printing turns every monthly delivery into a brand engagement moment, reinforcing customer loyalty with a consistent, on-brand unboxing experience that keeps subscribers sharing their boxes on social media.

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Tab Lock and Flat Mailer Boxes

Tab lock mailer boxes use an interlocking flap mechanism that requires no glue or tape to seal, dramatically speeding up packing workflows and cutting fulfillment costs for high-volume shippers. Flat mailer boxes ship flat and assemble in seconds, making them ideal for apparel brands, clothing retailers, and document shippers who need a clean, lightweight, self-locking solution that arrives looking professional every time.

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Custom Printed Mailer Boxes with Inside and Outside Printing

Custom mailer boxes printed inside and outside turn every single shipment into a two-stage brand experience. The outside panel creates the first impression at the customer doorstep. The inside lid delivers the unboxing moment, where brands print thank-you messages, discount codes, QR codes, social handles, or pattern artwork that customers photograph and share. In 2026, inside printing is one of the highest-ROI packaging decisions a DTC brand can make.

Materials and Printing Options for Custom Mailer Boxes

The right material and printing method determines both the protection your product receives and the visual quality of your brand on the box. Every order at Urgent Custom Boxes is produced using verified, certified materials with print methods matched to your quantity and quality requirements.

Board Materials

White Cardboard (SBS): Clean white base that delivers vibrant, high-contrast color reproduction. Best for brands using bold colors, intricate logos, or photographic print elements.
Kraft Paper (Recycled, FSC-certified): Natural brown board made from recycled fibers. Biodegradable, compostable, and ideal for eco-focused brand identities.
Corrugated E-Flute: Thin-wall corrugated board, lightweight with good crush resistance. Best for lighter items where branding quality and reduced DIM weight are priorities.
Corrugated B-Flute: Thicker corrugated board with superior stacking strength and impact resistance. Best for heavier products, fragile items, and long-transit international shipments.
Chipboard: Rigid, dense board used for structured premium mailer boxes. Provides a solid, luxury feel without corrugated texture showing through printed surfaces.

Printing Methods

Digital Printing: Best for orders under 500 units. No plate setup costs, fast turnaround, sharp detail reproduction, and cost-effective for short runs with complex designs.
Offset Lithographic Printing: Best for bulk orders above 500 units. Highest color accuracy with CMYK and Pantone matching. Produces the sharpest, most consistent results at scale.
Flexographic Printing: Cost-effective for single-color or two-color large-volume runs. Commonly used for simple branded designs on kraft corrugated boxes.

Finishes and Coatings

Gloss Lamination: High-shine surface that makes colors vivid and protects print from scuffing.
Matte Lamination: Flat, non-reflective surface with a premium understated quality.
Soft-Touch Lamination: Velvety, tactile surface that signals luxury. Most shared on unboxing videos.
Spot UV Coating: Selective high-gloss coating applied to specific design elements like logos or patterns.
Aqueous Coating: Water-based protective coating. Eco-friendly and food-safe compliant.
Foil Stamping: Metallic gold or silver accent applied to logos or design details.
Emboss and Deboss: Raised or recessed logo or pattern pressed into the board surface.

✔ FSC Certified

✔ SFI Certified

✔ ISO Compliant

✔ 100% Recyclable

✔ Biodegradable Options

Custom Mailer Box Sizes - How to Choose the Right Fit

To choose the right custom mailer box size, measure your product length, width, and height, then add 0.25 inches on each side to allow for protective padding. Your interior box dimensions should match these final measurements. At Urgent Custom Boxes, every order is produced to your exact specified dimensions with interior measurement guidance provided free at the quoting stage.

Size	Dimensions (inches)	Best For	Max Weight
Small	6 × 4 × 3	Jewelry, cosmetics, small electronics	Up to 10 lbs
Medium	9 × 6 × 3	Clothing, books, supplements	Up to 25 lbs
Large	12 × 9 × 4	Shoes, subscription kits, multi-item sets	Up to 45 lbs
XL	14 × 10 × 6	Large apparel, gift sets, tech accessories	Up to 65 lbs

How Right-Sized Custom Mailer Boxes Reduce Your Shipping Costs

Choosing a precisely sized custom mailer box also eliminates unnecessary dimensional weight (DIM) shipping charges. Carriers calculate shipping fees based on whichever is higher between the actual weight and the dimensional weight of the package. Dimensional weight is calculated by dividing the box volume by the carrier divisor.

An oversized box increases the volume and therefore the DIM weight, meaning you pay more per shipment even when the product inside is light. By ordering custom mailer boxes sized exactly to your product dimensions, you eliminate dead air space, drop into a lower DIM weight bracket, and reduce per-shipment carrier costs. For brands shipping thousands of units monthly, this single decision can save thousands of dollars annually.

Industries That Use Our Custom Mailer Boxes

Urgent Custom Boxes produces custom mailer packaging for brands across every major product category. Each industry below has distinct packaging requirements and we build to match all of them.

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E-Commerce and DTC Brands

Custom mailer boxes for e-commerce brands are engineered to protect products through the complete fulfillment cycle while delivering a branded unboxing experience that turns first-time buyers into repeat customers. For DTC brands competing on customer experience, a custom printed mailer box is the single most visible, tangible brand differentiator in every shipment.

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Cosmetics and Beauty Brands

Custom mailer boxes for cosmetics brands combine premium finishes such as soft-touch lamination, spot UV, and foil stamping with inside printing options that transform every delivery into a luxury experience. Influencer PR kits, product launch mailers, and subscription beauty boxes all benefit from cosmetics-specific dieline designs that hold bottles, jars, and tubes securely without movement during transit.

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CBD and Wellness Products

CBD mailer boxes require packaging that communicates trust, cleanliness, and brand credibility on the exterior while using interior printing to deliver compliance information, usage guides, and brand storytelling. Our custom CBD mailer boxes are produced with food-safe, odor-free aqueous coatings on FSC-certified board, meeting the material standards required by wellness product categories.

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Apparel and Clothing Brands

Custom mailer boxes for clothing brands use lightweight chipboard or E-flute corrugated stock with tab-lock or flat-fold designs that assemble quickly in high-volume fulfillment environments. Inside printing with tissue paper inserts and brand messaging turns what would be a simple garment shipment into a gift-like presentation that customers photograph and share.

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Subscription Box Businesses

Subscription box packaging requires custom mailer boxes that perform reliably across hundreds of monthly shipments, hold a variety of product sizes securely with divider inserts, and deliver a consistent brand experience that keeps subscribers engaged month after month. Full inside and outside printing on durable corrugated board is the standard specification for subscription packaging at Urgent Custom Boxes.

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Electronics and Tech Accessories

Custom mailer boxes for electronics use B-flute corrugated board at 32 ECT or higher, paired with custom-cut foam inserts or cardboard dividers that hold devices, cables, and accessories in fixed positions throughout transit. Anti-static lining options are available for sensitive electronic components.

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Food and Gourmet Gifting

Food-safe custom mailer boxes for gourmet gifting are produced with aqueous coatings, food-safe inks, and moisture-resistant board options that protect perishable and non-perishable food products from humidity and compression during shipping. Custom insert trays hold bottles, jars, and gift items in elegant presentation-ready arrangements.

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Corporate Gifting and PR Kits

Custom mailer boxes for corporate gifting and PR kit distribution use premium board stock with luxury finishes, ribbon pull inserts, and full inside printing to create a high-value unboxing experience suited to influencer mailers, client gift shipments, and product launch PR campaigns. Branded tissue paper, custom cards, and logo-printed void fill are all available as add-ons.

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Features and Benefits of Our Custom Printed Mailer Boxes

Every custom mailer box produced at Urgent Custom Boxes is built to perform on two fronts: protecting your product through the full transit cycle and representing your brand with the visual quality your customers expect.

Full-Color Inside and Outside Printing
CMYK and Pantone color matching on every panel, inside and outside, for brand-accurate results on every order regardless of quantity.
No Minimum Order Quantity
Order one sample box or 10,000 wholesale units. No MOQ lock-in at any stage of your business growth.
Custom Sizes from XS to XL
Any dimension specified in millimeters or inches, with interior measurement guidance and dieline templates provided at no charge.
7 to 12 Business Day Turnaround
Standard production in 7 to 12 business days. Rush 5-day production available for urgent orders with no compromise on print quality.
FSC-Certified Eco-Friendly Materials
100% recyclable corrugated board, biodegradable kraft options, and water-based soy inks that meet sustainability standards for global markets.
Free Professional Design Support
Our packaging designers build your dieline, create your 3D mockup, and prepare your print-ready artwork file at zero cost on every order.
Pre-Shipment 3D Digital Proof Approval
Every order includes a photorealistic 3D proof for your approval before production starts. No box is printed until you confirm the design is exactly right.
Color Accuracy Guarantee
G7-certified color management with CMYK and Pantone matching ensures your brand colors reproduce accurately, not approximately, on every production run.

Custom Inserts and Add-Ons for Mailer Boxes

Custom mailer box inserts are die-cut cardboard, foam, or molded pulp pieces fitted inside the box to hold products securely in place, prevent movement during transit, and elevate the presentation quality of the unboxing experience. Adding inserts reduces product damage rates, eliminates the need for loose void fill, and creates a structured, gift-like interior.

Available Insert and Add-On Options

Cardboard dividers: Custom die-cut corrugated or chipboard separators that hold multiple products in fixed positions.
EVA foam inserts: Dense foam cut to the exact shape of your product for maximum cushioning of fragile or high-value items.
Kraft paper void fill: Recycled kraft crinkle fill for eco-friendly cushioning of irregular-shaped products.
Tissue paper lining: Branded or unbranded tissue paper layers that add a tactile quality layer to the unboxing reveal.
Custom molded pulp tray: Sustainable molded fiber tray shaped precisely to your product, replacing plastic foam inserts.
Ribbon pull tab: Satin ribbon handle attached inside the lid for a premium, easy-open experience.
Thank-you card slot: Die-cut slot inside the lid or base to hold a printed card, discount code, or handwritten note.

Add custom inserts to your mailer box order at the quoting stage. Our packaging designers will spec the insert dimensions and materials to match your product and box size.

Get a Free Quote with Inserts

INSIDE PRINT PANEL

Foam Insert

Ribbon Pull

Foam Insert

Card Slot

How to Order Custom Mailer Boxes from Urgent Custom Boxes

Ordering custom mailer boxes from Urgent Custom Boxes is a four-step process from specification to delivery. Every step is supported by our packaging team at no extra cost.

Choose Your Box Type and Size

Select from corrugated, kraft, luxury, subscription, tab-lock, or flat mailer box styles. Enter your required internal dimensions in inches or millimeters. If you are unsure of the right dimensions, our team will measure against your product specifications and recommend the optimal size to minimize DIM weight charges.

Upload Artwork or Use Free Design Support

Upload your print-ready artwork file in AI, PDF, or EPS format, or brief our packaging designers directly. We build your complete dieline, design the inside and outside panels to your brand guidelines, and deliver a print-ready file for your review. Design support is included on every order at no charge.

Approve Your 3D Digital Proof

Before production begins, you receive a photorealistic 3D digital proof of your custom mailer box showing every panel, color, and finish exactly as it will be produced. No order advances to the production floor until you have reviewed and approved the proof. Changes at the proof stage are free and unlimited.

We Print, Pack, and Ship Worldwide

Once your proof is approved, your custom mailer boxes enter production. Standard turnaround is 7 to 12 business days. Rush 5-day production is available on request. Completed orders are shipped free to your address anywhere in the world. You receive a tracking number the moment your order ships.

Our Quality Guarantee

At Urgent Custom Boxes, every order is backed by a documented quality guarantee. We produce boxes that match your approved proof exactly, on every run, without exception.

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Color Accuracy Promise

We use G7-certified color management and CMYK plus Pantone matching on every production run. Your brand colors reproduce accurately across every box in the order.

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Free Reprint Policy

If your order arrives with any print defect or quality issue caused by our production process, we reprint and reship the complete order at zero cost and zero delay.

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3D Proof Approval Before Production

Every order includes a pre-production digital proof approval step. Production does not begin until you confirm the design is correct.

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FSC and SFI Certified Materials

All board stock used in production is certified to FSC and SFI environmental standards, verified on every order.

What Our Customers Say

★★★★★

"Our unboxing videos reached over 40,000 views after switching to Urgent Custom Boxes. The inside print quality is outstanding and the color accuracy matched our brand guidelines exactly."

Sarah M. Cosmetics Brand Owner

★★★★★

"We ordered 50 sample boxes first and the quality was perfect. Placed a 2,000 unit wholesale order immediately. Fast turnaround, free design support, and the boxes arrived flawlessly every panel."

James R. E-Commerce Founder

★★★★★

"The free reprint guarantee gave us confidence to try Urgent Custom Boxes. We have not needed it because every order is correct, but knowing it is there makes the decision easy."

Priya K. Subscription Box CEO

Frequently Asked Questions About Custom Mailer Boxes

There is no minimum order quantity at Urgent Custom Boxes. You can order a single sample box to test print quality and sizing before committing to a bulk run, or place a wholesale order of 10,000 units with volume pricing applied automatically. There are no MOQ restrictions at any order level.

Custom mailer boxes are produced from white cardboard (SBS board), recycled kraft paper, corrugated E-flute board, corrugated B-flute board, or premium chipboard depending on the box type and product requirements. All materials are FSC-certified, recyclable, and available in biodegradable options for eco-conscious brands.

Yes. Urgent Custom Boxes prints on both the inside and the outside of every custom mailer box. Inside printing options include full-panel artwork, thank-you messages, discount codes, QR codes, social media handles, and brand origin stories. Inside printing is available on all corrugated and chipboard box types at no extra setup cost.

Standard production at Urgent Custom Boxes takes 7 to 12 business days from proof approval to dispatch. Rush 5-day production is available for urgent orders. Shipping time is in addition to production time and depends on your delivery location. Free worldwide shipping is included on all orders.

E-flute corrugated board is a thin-wall corrugation with a smooth printing surface and good crush resistance, best suited to lighter products where print quality and reduced shipping weight are priorities. B-flute corrugated board is a thicker, heavier corrugation with superior stacking strength and impact resistance, best suited to heavy products, fragile items, and orders shipping internationally over long transit distances.

Yes. All custom mailer boxes produced at Urgent Custom Boxes are made from FSC-certified or SFI-certified board, printed with water-based soy inks, and are 100% recyclable at end of use. Kraft board options are fully biodegradable. Aqueous coatings rather than plastic laminations are available on all box types for brands requiring fully compostable packaging.

Yes. Urgent Custom Boxes offers wholesale pricing on all custom mailer box orders with pricing tiers that decrease per unit as order quantity increases. Wholesale pricing applies automatically at checkout based on your specified quantity. There is no minimum order required to access wholesale rates.

Yes. You can order a single custom-printed sample box at the same specifications as your intended bulk order, including your exact design, materials, and finish. The sample ships in the standard 7 to 12 business day production window. Reviewing a physical sample before placing a bulk order is recommended for all first-time orders.

Lay your product flat on a surface and measure the length, width, and height at the largest points. Add 0.25 inches to each dimension to allow space for protective padding or inserts. The resulting three measurements are your required interior box dimensions. Submit these dimensions at the quoting stage and our team confirms the optimal box structure, flute type, and ECT rating for your product weight.

Urgent Custom Boxes uses digital printing for orders under 500 units, providing fast turnaround, no plate setup costs, and sharp reproduction of complex designs. Offset lithographic printing is used for bulk orders above 500 units, delivering the highest color accuracy with CMYK and Pantone matching at the best cost per unit. Our team recommends the most suitable printing method at the quoting stage based on your order quantity and design requirements.

Yes. Corrugated custom mailer boxes at 32 ECT or higher are structurally capable of being shipped as the primary outer packaging without an additional shipping box. The self-locking tab mechanism provides a secure seal for direct postal and courier shipping. For luxury chipboard mailer boxes on long-distance international routes, an outer corrugated shipper is recommended to protect the printed finish.

Yes. Rush production at Urgent Custom Boxes reduces the standard 7 to 12 business day production window to 5 business days. Rush production is available on all custom mailer box types including corrugated, kraft, and luxury options. Rush production is selected at the order stage and does not affect print quality, finish options, or minimum quantity requirements.

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Ready to Order Custom Mailer Boxes?

Urgent Custom Boxes produces custom mailer boxes for brands at every stage, from startups testing their first 10 boxes to established e-commerce businesses ordering 10,000 units at wholesale pricing. Every order includes free design support, a 3D digital proof, worldwide shipping, and a full quality guarantee with free reprint coverage.

Tell us your box type, dimensions, quantity, and design brief. We take care of everything from dieline to delivery.

GET A FREE QUOTE REQUEST A SAMPLE BOX