Custom Double Sided Printed Mailer Boxes

What makes a mailer double sided?

A standard printed mailer carries ink on the outer face of the board only. A double sided mailer is printed on the inner face too, so the walls, base and lid underside are all branded.

Our photos show how different the two sides can be. A yellow box has a solid colour inside and a printed card under the lid. A pale purple and coral pair show a swirl pattern inside, with a small outline logo outside. A kraft box carries a white pattern on the outside and a deep green inside.

It is the same folding style as our standard custom mailer boxes, with a second print pass added.

Why print the inside as well?

The outside of a mailer travels through sorting centres and vans. It needs to carry a label, survive handling and look tidy on a doorstep.

The inside is only seen by your customer. That makes it the place for a thank-you note, care steps, a discount code or a bold colour that would be too loud outside. Many brands keep the outside simple and save the strong design for the inside. It also helps when customers film or photograph their parcels, as the open box is what appears on screen.

Inside print also lasts. Boxes that are kept for storage show the inside every time they are opened, long after the address label has been peeled off.

Which board takes print best on both sides?

Board colour shapes how each side looks. You can ask for white on both faces, kraft on both, or white outside with kraft inside, and we confirm the build on your quote.

If your inside design is mostly a solid flood, the board colour underneath matters less. If it is a fine line pattern on bare board, as on the kraft box in our photos, the board colour becomes part of the design.

Do double sided mailers cost more?

Yes, a little, because the board goes through a second print pass. The extra depends on how much ink coverage you use and how many colours.

There are ways to keep it down. A one colour inside, such as a single flood or a line pattern, costs less than full colour photography. Keeping the outside to kraft with one colour, and putting full colour inside, is a popular balance. Pricing starts from £0.25 per unit across our mailers, and your quote shows the cost of each option so you can compare.

Order size matters too. The set-up for a second side is spread across every box, so the extra per box falls as the quantity rises.

Which finishes work on a two-sided print?

The outside can take matte or gloss lamination, spot UV, foil stamping or embossing. Lamination also helps the outside resist scuffs in transit.

Inside, most brands leave the print uncoated or matte, because a softer finish feels right in the hand. Foil on the inside lid is possible and looks striking, but keep it to a logo or short line. Embossing presses through the board, so a raised logo outside will show as a dip inside; plan the artwork around it.

How do double sided mailers fit with other packaging?

A printed inside often means you need less else. Some brands drop tissue paper and loose leaflets, because the message is on the box itself.

Others go further and add printed tape, a card insert or paper shred in a matching colour. If you want branded tape to seal the outside, see our custom printed packing tape so the parcel matches from the first glance.

Keep colours consistent across each item. A brand colour printed on board, tape and card can look slightly different on each, so ask for advice on matching.

Ordering your double sided mailers

Send your inside size, board, print for each side and any finishes. Our mailer box quote form takes artwork uploads, or you can email info@ordercardboardboxes.co.uk.

We reply with a written quote and dielines, then a free digital proof. Production follows sign-off and takes 4 to 6 business days. Tracked delivery takes 2 to 3 business days and costs nothing within the UK.