Custom Corrugated Mailer Boxes from Prime Custom Packaging turn your customer’s doorstep moment into part of your brand, using a self-locking tuck closure instead of tape for a cleaner open every time. Flaps interlock along the top seam, which speeds up packing on your end and removes the adhesive residue customers deal with on a taped box. This format is built specifically for direct-to-consumer shipping, where the box itself doubles as marketing the moment it arrives. Every mailer ships free across the United States, with a free dieline and zero minimum order quantity so a small test batch costs the same attention as a full run. We size each box to your exact product dimensions and print full color inside and out. Request a free quote and we’ll help you plan sizing around your actual SKU dimensions.












Your customer’s first physical touchpoint with your brand is the box on their doorstep. Custom Corrugated Mailer Boxes from Prime Custom Packaging turn that moment into part of your marketing. Every order ships free across the United States. Zero minimum order quantity and a free dieline come standard from our in-house team. Wholesale e-commerce brands order mailer boxes in bulk for direct-to-consumer shipping.
A mailer box uses a self-locking tuck closure instead of tape. Flaps interlock along the top, sealing the box without adhesive or a packing station. Custom Corrugated Mailer Boxes assemble fast and open cleanly. That matters when the unboxing itself is part of your brand experience. E-commerce brands built entirely around this format for exactly that reason.
Skipping tape removes a step from your fulfillment line and a mess from your customer’s counter. A locking mailer also looks more intentional than a taped-shut carton on arrival. Custom Corrugated Mailer Boxes hold their seal through standard parcel handling without any adhesive at all. That reliability is why most direct-ship brands never look back at taped alternatives.
We build every mailer to your product’s exact dimensions, but common ranges cover most orders.
| Category | Typical Size | Suggested Stock |
| Small mailer | 9 x 6 x 3 in (229 x 152 x 76 mm) | Single-wall, B-flute |
| Standard e-commerce mailer | 12 x 9 x 4 in (305 x 229 x 102 mm) | Single-wall, C-flute |
| Larger apparel or bundle mailer | 16 x 12 x 6 in (406 x 305 x 152 mm) | Single or double-wall |
Our Single-wall Corrugated Boxes line covers most direct-ship mailers at the lowest cost. Our Double-wall Corrugated Boxes line adds strength for heavier bundles or fragile items. The heaviest mailer orders can also use our Triple-wall Corrugated Boxes line on request.
The inside of a mailer is prime branding space that a plain shipping carton wastes. We print interior graphics, thank-you messages, or a second logo placement at no extra design cost. Custom inserts for tissue paper, product dividers, or small accessory pockets are also available. Custom Corrugated Mailer Boxes turn every square inch into a branding opportunity.
Offset printing suits larger production runs where color needs to stay consistent order after order. Digital printing works better for shorter runs or seasonal packaging refreshes. We match CMYK for full-color artwork and PMS for a locked brand color. Our Custom Printed Corrugated Boxes line covers full-panel branding across any mailer size.
Board weight for mailers follows the same naming conventions across our catalog. Our Custom 3 Ply Corrugated Boxes line matches single-wall mailer construction. Heavier bundles can also use our Custom 5 Ply Corrugated Boxes line for added stacking strength. The heaviest bundle mailers can even use our Custom 7 Ply Corrugated Boxes line on request.
Standard warehouse shipping usually favors a different format. Our Custom Slotted boxes line covers general shipping at the lowest per-unit cost. Presentation-heavy products should also review our Custom Telescopic boxes line. Flat apparel and accessory items often fit our Custom Folder Boxes line better. Irregular shapes need our Custom Die Cut Corrugated Boxes line instead.
Zero minimum order quantity applies to every Custom Corrugated Mailer Boxes order. Start with a small launch batch or a full production run. Standard orders ship in four to seven business days after proof approval. Rush production is available for time-sensitive launches. Shipping stays free across the United States on every order. Private-label subscription brands and retail-ready fulfillment teams both choose this sustainable mailer format.
Our in-house team builds your dieline at no charge for every Custom Corrugated Mailer Boxes order. That includes any interior branding or insert layout. We recommend the right closure and board weight before your order goes to press. Physical samples are available on request before you commit to a full production run.
| Check | What We Verify | Why It Matters |
| Lock tab strength | Tested for secure closure without tape | Prevents the box from opening in transit |
| Dieline accuracy | Within plus or minus 1/16 inch of approved dieline | Prevents loose flaps or a box that won’t seal |
| Print registration | Multi-color alignment checked on press sheet | Keeps interior and exterior artwork sharp |
Social media has turned the unboxing moment into free advertising for brands that get it right. A well-branded mailer, an unexpected interior print, and a clean opening sequence all encourage customers to film and share. Custom Corrugated Mailer Boxes give you every surface needed to make that moment worth posting. Brands investing in this detail routinely see it reflected in repeat purchase rates.
We ship this line to every state at the same free-shipping rate. California and New York direct-to-consumer brands order the highest volume of custom mailers nationwide. Texas and Illinois subscription brands favor this format for its unboxing appeal. Los Angeles and Chicago brands frequently request rush turnaround before a product launch. Wherever your fulfillment center sits, the same zero-MOQ pricing and free design service apply.
Send us your product dimensions and preferred interior branding. We will return a free dieline and quote within one business day. Zero minimum order quantity means you can start with a small test batch. Get a Free Quote Now. You can also email sales@primecustompackaging.com or call +1 (855) 611-8876 to speak with our team.
Order Now or email sales@primecustompackaging.com or call +1 (855) 611-8876 for a free quote today.
| Box Style | Custom Corrugated Mailer Boxes |
| Dimension (L + W + H) | All Custom Sizes & Shapes |
| Quantities | No Minimum Order Required |
| Paper Stock | 10pt to 28pt (60lb to 400lb) Eco-Friendly Kraft, E-flute Corrugated, Bux Board, Cardstock |
| Printing | No Printing, CMYK, CMYK + 1 PMS color, CMYK + 2 PMS colors |
| Finishing | Gloss Lamination, Matte Lamination, Gloss AQ, Gloss UV, Matte UV, Spot UV, Embossing, Foiling |
| Included Options | Die Cutting, Gluing, Scored, Perforation |
| Additional Options | Eco-Friendly, Recycled Boxes, Biodegradable |
| Proof | Flat View, 3D Mock-up, Physical Sampling (On request) |
| Turnaround | 4 – 8 Business Days, RUSH |
| Shipping | FLAT |











