• Custom Cardboard Mailer Boxes
  • Double-fold cardboard mailer box
  • Easy-assembly cardboard mailer box
  • Custom size cardboard shipping box
  • Cardboard mailer packaging for gifts
  • Custom Cardboard Mailer Boxes
  • Double-fold cardboard mailer box
  • Easy-assembly cardboard mailer box
  • Custom size cardboard shipping box
  • Cardboard mailer packaging for gifts
Custom Cardboard Mailer Boxes
KM011

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We manufacture custom cardboard mailer boxes in flexible sizes, structures, and printing options to meet different packaging requirements. The tape-free double-fold design supports efficient assembly for e-commerce, food, gifts, and daily-use products.

Product Details

Why Cardboard Mailer Boxes are the Perfect Choice for You

Cardboard mailer boxes, also known as cardboard folder mailer boxes, are one of the most widely used and practical packaging formats worldwide. They feature a simple structure and are easy to assemble – no tape required, and both adults and children can fold them effortlessly. More importantly, the doublefold structure effectively protects the contents inside while achieving tapefree, wastefree ecofriendly packaging. For customers in ecommerce, food, daily necessities, gifts, and other industries, this is undoubtedly an ideal solution that balances efficiency and brand image.

Materials & Processes: We Speak with Professionalism

We know that good packaging starts with quality materials. Our company uses only highquality paperbased materials that are widely available, costeffective, and offer excellent strength and flexibility to provide reliable physical protection for your products. The surface of the paperboard has outstanding printability, supporting fullcolor offset printing and UV printing – delivering vibrant colors and fine details that perfectly present your brand identity. In terms of production, we own our own printing presses and a complete postpress processing line, allowing us to respond flexibly to your customization needs. All sizes can be processed according to your specifications, and we support small minimum order quantities as well as largescale, stable supply.    

Multiple Box Styles to Precisely Match Your Products

Depending on the specific usage scenario and closure structure, cardboard mailer boxes come in various styles. Our company offers the following common types:- Tab Lock Mailer Boxes – locked with a tab, easy to open and close, suitable for small, lightweight items.- Side Loading Boxes – side opening, convenient for flat or longer products.- Outside Tuck Mailer Boxes – flipopen lid structure, smooth opening and closing, ideal for frequent access.- AutoLocking Bottom Boxes – bottom locks automatically, no tape required, with strong loadbearing capacity.- OpenWindow Boxes – partial transparent window to showcase the product inside and boost sales appeal.Whatever structure you need, we can provide professional structural advice based on your product shape, weight, and shipping method – making your packaging both attractive and functional.

Our Strengths: Experience, Quality & ServiceOur team has rich industry experience. Every step – from design and sampling to mass production, quality control, and logistics – follows strict standards. We provide free stock samples for you to test, with fast sampling turnaround. Once confirmed, production can be scheduled immediately.In quality management, we have implemented an internal control system that is more rigorous than that of our peers, ensuring consistent and reliable dimensions, printing, diecutting, and folding performance for every batch. We also offer personalized customization services – we can add your company logo, barcodes, ecolabels, instructions, etc., turning your packaging into a vehicle for brand communication.

Our Commitment to Cooperation Starts with Every Conversation

We believe that good packaging is not only a “protective cover” for your products, but also a key element in enhancing brand value and reducing overall costs. If you are looking for a simple, ecofriendly, and professional mailer box, we would be delighted to provide you with free consultation, free samples (from stock), and oneonone design support.All sizes can be customized, and every detail can be discussed. Please feel free to contact us at any time – we will respond promptly and offer you the most competitive prices and lead times.


Product ItemCustom Cardboard Mailer BoxesMaterialsSurface Paper/ Inner Paper: Kraft paper/ White card paper/ Grey board paper/ Coated paper, thickness scope in 150-300g/m²Flute typeB/C/E/F/BE/EF flute;
B/E Flute(3 layers): 3mm for light weight; BE/EF Flute(5 layers): 6-7mm for heavier products.
SizeL x W x H (mm); According to Customer's requirement. Inner dimensions: outer – 3~5 mm (board thickness)
Core Paper: Kraft paper, thickness scope in 112-180g/m²Printing and Color processFlexographic Printing; Offset Printing; Screen Printing; CMYK 4 Color process/ Pantone Color
Surface FinishingGloss/Matt Lamination, Soft touch film, UV coating, Spot UV, Gold/Silver Hot-stamping, Embossing/Debossing, Oil varnish, Aqueous varnishUsageE-commerce, Food Packaging, Gift Retail, Industrial Products and so onRegular Box TypeRegular Slotted Carton (RSC); Folding Carton; Mailer Box; Lock Bottom Box

 


Inquiry Now

+86 13589297706

cathy.wang@karmayprinting.com

+86 18561329836