ECO FRIENDLY BOXES UK

Custom packaging / UK-wide delivery

Custom Mailer Boxes

Plan custom mailer boxes around the item going in the parcel, how it is packed and the artwork you want customers to see.

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Custom Mailer Boxes packaging
Product format — confirm dimensions and finish against your brief.
Proof-stage guidanceMaterial and print optionsUK delivery planning

Start with the packed order, not just the product

Custom mailer boxes need to suit the item, any inner wrap or insert, and the way your team packs an order. Measure the product as it will be sent, including accessories or a folded garment, and allow space for the chosen packing materials. A snug fit and an easy packing routine both matter.

Make the outside work for your brand

Decide what a customer should notice when the parcel arrives: a simple logo, a full-colour design or a clear product message.

Include these points in your brief

  • Product and packed dimensions
  • Quantity and expected delivery destination
  • Artwork, print preferences and any insert requirements
  • Whether the box is for direct dispatch or retail presentation

Get the details checked

Box construction, print, finish, price and timing depend on the agreed requirements. Send the brief before committing to a size; a quote can confirm the available options for your particular mailer.

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Frequently Asked Questions

Will a mailer box survive postage across the UK?

The style name alone cannot confirm how a packed parcel will perform in the post. Share its filled weight, dimensions and route so the board and closure can be checked against the actual shipment.

Can I put a thank-you card or insert in the mailer?

For a thank-you card or insert, share its width, height and thickness with the packed product dimensions. The internal fit can then be checked against the selected mailer; do not assume an insert fits every size.

Do mailer boxes arrive flat so I can store them?

Yes, mailer boxes are delivered flat-packed. They are assembled by hand, which saves storage space in your shop or warehouse.

Which closing style should I choose for my mailer?

How the pack closes depends on the selected structure. Tell us whether it needs a locking panel, tuck flap, seal or tape; the closure is confirmed against the chosen format and proof.

Can I order 100 mailers in two sizes?

The published minimum is 100 boxes per size and design, so 100 boxes split between two sizes would not meet that guidance. List each version separately and the quote will confirm the quantities.

Do mailer boxes need tape to stay closed?

How the pack closes depends on the selected structure. Tell us whether it needs a locking panel, tuck flap, seal or tape; the closure is confirmed against the chosen format and proof.

Can I print my return address on the outside of the mailer?

Yes. The return address can be printed on the outside or on a sticker. Let us know the position and we will add it to your artwork.

What makes a mailer box good for a subscription box?

For a subscription pack, share the products in the usual shipment, their combined dimensions and weight, and any insert or welcome message you want included. The structure and artwork can then be checked against the actual pack-out.