Square Mailer Boxes
Custom Square Mailer Boxes
Square Mailer Packaging Boxes
Printed Square Mailer Boxes
Square Shipping Mailer Boxes
Square Mailer Boxes
Custom Square Mailer Boxes
Square Mailer Packaging Boxes
Printed Square Mailer Boxes
Square Shipping Mailer Boxes
No Die & Plate Charges

No Die & Plate Charges

No Setup Fees

No Minimum Order

No Minimum Order

Order Any Quantity

Free Design Support

Free Design Support

Expert Assistance

Any Size & Style

Any Size & Style

Custom Packaging

Eco Friendly

Eco Friendly

Sustainable Materials

Fast Production

Fast Production

Quick Turnaround

Secure Checkout

Secure Checkout

100% Protected

24/7 Support

24/7 Support

Always Available

Free Delivery

Worldwide Free Shipping - Door to Door

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Free 7 Days Delivery Returns. Details. Details

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Square Mailer Boxes

(356 Reviews) In Stock

Present elegantly with custom-built square-shaped mailer boxes most suitable for ecommerce shipping items, including apparel, cosmetics, wall art, accessories, and more. Made from rugged corrugated cardboard, our square mailer boxes provide a sharp, symmetrical presentation to your goods. 

The durable, eco-friendly construction keeps your products locked in place, so they arrive in pristine condition. Best of all, these boxes ship completely flat to save you warehouse space, and they snap together in seconds without tape or tools, keeping your fulfillment team moving fast. Feel free to also get free design support when you place an order for square mailer boxes wholesale units.

Final cost depends on your specifications

SKU: SMB-3663 Category:
Material Cardstock, Corrugated Cardboard, Rigid, Kraft
Material Thickness Paperboard (18pt to 24pt), Corrugated Cardboard (E-Flute), Rigid (36pt to 48pt)
Printing CMYK, Pantone, PMS, No Printing
Coatings Varnish, Lamination
Finishing Gloss, Matte, Soft Touch, Spot Gloss UV, Embossing, Debossing, Foil Stamping
Add-ons Custom Inserts, Window Patching
Sampling Flat View, 3D Mock-up, Physical Sampling (On request)
Quantities 100 – 500,000
Turnaround Time 8 to 10 Business Days
Shipping 2 to 3 Business Days