A custom mailer box for Shopify orders should be sized around the packed product, not only the product itself. Leave room for inserts, cards, protective paper and the opening experience, but avoid empty space that increases freight volume.
Send product size, product weight, order quantity, artwork files and the shipping route before asking for a mailer box quote.
Mailer box design checklist
| Design detail | Practical check |
|---|---|
| Box size | Check product fit, insert space and carton packing |
| Board strength | Match product weight and shipping route |
| Outside print | Keep key artwork away from folds and closure areas |
| Inside print | Useful for unboxing without adding loose items |
| Insert layout | Confirm before approving the box size |
| Label area | Leave clean space if the box needs stickers or barcodes |
When a mailer box is enough
Mailer boxes work well when the box is part of the customer-facing order and the product is not too heavy or fragile for the route. They are common for apparel, skincare samples, accessories, subscription boxes and light gift sets.
For heavier or fragile products, the mailer may need an outer shipping carton or stronger insert.
Quote details
Send the target quantity, box dimensions if known, product photos, desired finish, inside print needs, destination and whether boxes should be delivered to your China supplier.
Related pages: custom mailer boxes, Shopify packaging from China, shipping carton size and freight cost.