Mint blue superflat mailing boxes
Mint blue 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 mint blue finish. They fold together without tape. Choose 180 x 100mm, 152 x 132mm, 220 x 160mm or 310 x 220mm.
Mint blue superflat boxes drawn to scale (length x width). Click a box to shop.
Mint blue superflat sizes
| Box size (mm) | Code | Good for | Pack |
|---|---|---|---|
| 180 x 100 x 16 | B348 | Gift cards, vouchers, jewellery cards | 100 |
| 152 x 132 x 16 | B351 | Square cards, coasters, small prints | 100 |
| 220 x 160 x 16 | B349 | A5 prints, cards, flat accessories | see product |
| 310 x 220 x 16 (A4) | B350 | 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.
Mint blue superflat box FAQs ▾
Mint blue 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 mint blue 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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