Rose pink superflat mailing boxes
Rose pink superflat mailing boxes are slim, rigid mailers with about 16mm of internal depth, for flat items that must not bend: cards, prints, vouchers and thin accessories, in a rose pink finish. They fold together without tape. Choose 220 x 160mm or 310 x 220mm.
Rose pink superflat boxes drawn to scale (length x width). Click a box to shop.
Rose pink superflat sizes
| Box size (mm) | Code | Good for | Pack |
|---|---|---|---|
| 220 x 160 x 16 | B447 | A5 prints, cards, flat accessories | see product |
| 310 x 220 x 16 (A4) | B448 | A4 documents, prints, calendars | 100 |
Sizes are internal dimensions. Going by post as a large letter? Check Australia Post’s current letter size and weight limits against the outside of the packed box.
Rose pink superflat box FAQs ▾
Rose pink superflat box FAQs
How deep is a superflat box?
About 16mm of internal depth, enough for cards, prints and thin accessories.
Can I post a superflat box as a large letter?
Often, yes. Measure the outside of your packed box and weigh it, then check the current Australia Post letter limits before you post.
Which superflat box fits A4?
The 310 x 220 x 16mm rose pink superflat box fits A4 documents and prints.
Do superflat boxes need tape?
Not to assemble. Add a seal sticker for security if you like.




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