Corrugated Mailer Boxes
When a standard mailer isn't quite strong enough, a fully corrugated build adds real durability.
Boxes built for the letterbox and the doorstep
Custom mailer boxes sized to your product, for direct-to-customer parcels that arrive looking sharp.
From first orders to daily dispatch
One box style that suits a small brand's first 50 parcels and a larger business shipping every day.
Eco Friendly Mailer Boxes
An eco mailer swaps plastic tape and laminate for genuinely recyclable, verified materials.
Kraft Mailer Boxes
A kraft mailer signals natural, low-fuss branding before a customer even opens the parcel.
Printed Mailer Boxes
Full-colour print turns a functional mailer into a genuine piece of brand marketing.
Subscription Boxes
A subscription box has to feel just as good on the twelfth delivery as it did on the first.
White Mailer Boxes
A white base gives colours more punch and detail more clarity than a natural kraft mailer.
What Is a Mailer Box?
A mailer box is a self-locking, one-piece corrugated box that folds flat for storage and pops into shape without tape. It is built specifically for direct-to-customer shipping, which is why it is the most common choice for online orders sent straight to someone's door.
Why Businesses Choose Mailer Boxes
Because a mailer box is one piece with a locking base and lid, it is quick to assemble by hand, which matters when a small team is packing every order themselves. Larger businesses like them too, since the flat-pack design saves storage space in a warehouse compared with pre-formed boxes.
Print and Branding
Mailer boxes print well both inside and out, which many brands use to add a printed message, pattern, or thank-you note on the interior as a small unboxing surprise. This works alongside custom envelopes or a printed insert card for a complete branded delivery.
Sizes and Fit
A mailer box built to fit your product properly reduces the amount of padding you need inside, which saves on both material cost and shipping weight. We size each box around your product rather than offering a small range of generic sizes.
Order Sizes We Support
Custom mailer boxes are available from around 50 to 100 units, so a new brand can order a properly branded box without a large upfront commitment. Unit price drops as order volume grows, which benefits larger businesses shipping regularly.
Average Mailer Box Prices
As a general guide, custom mailer boxes typically cost between £0.50 and £1.60 per unit, depending on size, board weight, print colours and finish. These figures are a guide only, and an exact price depends on your specification.
Sustainability
Mailer boxes are made from corrugated board, which is widely recyclable and often already contains a good share of recycled fibre. FSC-sourced board is available on request, and a well-fitted box needs less padding, cutting waste before anything else changes.
Getting Started
Tell us your product's size and roughly how it ships, and we will suggest a suitable mailer box size and board weight. Our design team builds a proof for you to check before we move to production and UK-wide delivery.
Frequently Asked Questions
Common questions about our mailer boxes.
What makes a mailer box different from a standard shipping box?
A mailer box is a one-piece, self-locking corrugated box designed for direct-to-customer parcels, and it folds flat for storage until you need it.
Can mailer boxes be printed on the inside as well as outside?
Yes, printing the inside is a popular way to add a message or pattern that customers see as they open their parcel.
What is the smallest order for custom mailer boxes?
Custom mailer boxes are available from around 50 to 100 units.
How much do mailer boxes cost?
Typically between £0.50 and £1.60 per unit, depending on size, board weight, print colours and finish.
Are mailer boxes suitable for heavier products?
They suit most standard parcels well; for particularly heavy or bulky items, a double-wall corrugated box is usually a better fit.
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