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Square Mailer Boxes
Square mailer boxes with a balanced, gift-like shape, ideal for candles, gift sets, cosmetics and subscription boxes.
About our box
Square Mailer Boxes, made to your size
A square box feels like a gift. Our square mailer boxes are popular for candles, gift sets, beauty products and subscription boxes, where the balanced shape frames the contents neatly and makes the lid an ideal canvas for a centred logo or pattern.
Why choose our square Mailer Boxes
Square boxes stack well, present products symmetrically and are easy to design for. They work particularly well with inserts that hold several items in a grid.
Popular uses
- Candles and home fragrance
- Gift and hamper sets
- Cosmetics and skincare kits
- Subscription boxes
- Cupcakes and treats
Materials, print and finishes
- Any square size, shallow or deep
- Centred logo or all-over pattern
- Grid inserts for multiple items
- Full range of print and finishes
Shallow square mailers are ideal for flat items such as prints and accessories, while deeper boxes suit candles and jars.
Sizes and dimensions
Every order of square Mailer Boxes is made to your dimensions in millimetres (length × width × height). Not sure of the size? Choose “Not sure — suggest a size” in the options above and tell us what you are packing, and we will recommend dimensions and show them in your mock-up. You can also order several sizes in the same design to cover your whole range.
Related packaging
Comparing options? Take a look at Mailer Gift Boxes, Mailer Boxes With Inserts and Decorative Mailer Boxes, or browse all custom mailer boxes and our wider custom packaging range.
How to order
Choose your size and options above and request a free quote. We reply within 24 hours with your price and a free 3D mock-up, and nothing is printed until you approve it. Orders are delivered across the UK in 12–14 working days; see our delivery information. The “From” price is our bulk price per unit, excluding VAT, and larger quantities bring the unit price down. Selling clothing too? We also make custom apparel to ship in your boxes.
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Specifications
| Shape | Square, any size and depth |
|---|---|
| Style | Self-locking mailer, tape-free |
| Board | Kraft or white corrugated (E-flute or B-flute) |
| CMYK and Pantone, outside, inside or both | |
| Finishes | Matte, gloss or soft-touch; foil, spot UV, embossing |
| Size | Made to your inside dimensions (mm) |
| Recyclable | Yes, with UK paper and card recycling |
| Minimum order | Low minimums |
| Delivery | 12–14 working days after approval, UK-wide |
| Category | Custom Mailer Boxes |
Fill your boxes with your own merch
Hoodies, tees, sets, caps and socks — cut and sewn to your design from 20 pieces per style, packed in your boxes and delivered together.
Explore custom apparelHow it works
Tell us your box
Size, print and quantity — or ask us to suggest a size.
Free 3D mock-up
See your design on the box before anything prints.
We print and make
Printed, die-cut and quality checked.
Delivered flat
Tracked UK delivery in 12–14 working days.
Questions about Square Mailer Boxes
What sizes do square mailers come in?
Any size. Tell us the inside length, width and depth and we will make it to fit.
Can I add a grid insert?
Yes. We can make a card or corrugated insert with a space for each item.
How much do square mailer boxes cost?
The “From” price on this page is our bulk price per unit, excluding VAT. Your exact price depends on size, quantity, print and finish, and we send it with a free mock-up within 24 hours.
How long does delivery take?
12–14 working days after you approve your mock-up, with tracked delivery anywhere in the UK.
Ready to see your box?
Send your size and logo — free 3D mock-up and quote within 24 hours.