Free 3D mock-up
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Ecommerce Mailer Boxes
Branded eCommerce mailer boxes that protect every online order and make your parcel recognisable on the doorstep. Made to your exact size in kraft or white corrugated board.
About our box
Ecommerce Mailer Boxes, made to your size
Every online order ends with a box on someone’s doorstep, and that box is the only part of your shop a customer can actually hold. Our eCommerce mailer boxes are designed for brands that send out parcels every day. They fold flat for storage, pop up in seconds at the packing bench and lock shut without tape, so your team packs faster and your customers open something that looks considered.
Why choose our ecommerce Mailer Boxes
Generic brown cartons waste space, need void fill and say nothing about your brand. A mailer made to the size of your best-selling products cuts packing material, lowers shipping weight and keeps items from rattling around in transit. Add your logo on the lid and a thank-you message inside and the box does some of your marketing for you.
Popular uses
- Fashion and accessories orders
- Beauty and skincare bundles
- Homeware and candles
- Small electronics and gadgets
- Repeat orders and subscriptions
Materials, print and finishes
- E-flute or B-flute corrugated board for courier handling
- Locking front tabs and dust flaps, no tape needed
- Print outside, inside or both in full colour
- Matte, gloss or soft-touch finish
If you sell several product sizes, we can quote two or three mailer sizes together so every order has a well-fitting box. Ask about printed tissue, stickers and inserts to complete the unboxing.
Sizes and dimensions
Every order of ecommerce 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 Shipping Boxes, Postal Boxes and Product 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
| Best for | Everyday online orders up to around 5 kg |
|---|---|
| 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 Ecommerce Mailer Boxes
Can I order more than one size in the same order?
Yes. Many shops order two or three sizes together. Add each size to the notes on the quote form and we will price them all at once.
Will the box survive Royal Mail and courier networks?
Yes. Our eCommerce mailers use corrugated board strong enough for UK postal and courier networks. For heavier items we will recommend a thicker flute.
How much do ecommerce 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.




