Custom Mailer Boxes
Custom printed mailer boxes made to your exact size, with free design help, a free 3D mock-up and tracked UK delivery in 12–14 working days.

Ecommerce Mailer Boxes
From £0.16/box bulk
PR Mailer Boxes
From £0.40/box bulk
Mailer Boxes With Inserts
From £0.40/box bulk
Corrugated Mailer Boxes
From £0.40/box bulk
Product Mailer Boxes
From £0.40/box bulk
Holiday Mailer Boxes
From £0.40/box bulk
Branded Mailer Boxes
From £0.40/box bulk
Black Mailer Boxes
From £0.40/box bulk
Small Cardboard Mailer Boxes
From £0.40/box bulk
Double Wall Mailer Boxes
From £0.40/box bulk
Postal Boxes
From £0.40/box bulk
Shipping Boxes
From £0.40/box bulk
White Mailer Boxes
From £0.40/box bulk
Boxboard Mailer Boxes
From £0.40/box bulk
Cardboard Mailer Boxes
From £0.40/box bulk
Chipboard Mailer Boxes
From £0.40/box bulk
Coloured Mailer Boxes
From £0.40/box bulk
Square Mailer Boxes
From £0.40/box bulk
Ear Lock Mailer Boxes
From £0.40/box bulk
Kraft Mailer Boxes
From £0.40/box bulk
Luxury Mailer Boxes
From £0.40/box bulk
Mailer Gift Boxes
From £0.40/box bulk
Decorative Mailer Boxes
From £0.40/box bulk
Paper Padded Mailers
From £0.40/box bulkCustom mailer boxes made for UK brands
A custom mailer box is often the first physical thing a customer touches from your brand. We make printed mailer boxes for online shops, subscription services, PR agencies and product launches across the UK, each one made to your exact inside size and printed with your own artwork. The result is a box that protects the product, fits it properly and looks like it belongs to your brand rather than a generic courier carton.
Choose the board, then the print
Most orders start with one of three board colours. Kraft mailer boxes have a natural brown finish that suits eco-conscious brands and one or two-colour logos. White mailer boxes give the brightest, most accurate full-colour print. Black mailer boxes and coloured mailer boxes create a premium, bold look. For heavier or fragile products, our double wall mailer boxes and corrugated mailer boxes add extra strength.
Print outside only, or inside and outside for a reveal moment when the lid opens. Finish the box in matte, gloss or soft-touch lamination, then add foil, spot UV or embossing to make your logo stand out.
Mailer boxes for every kind of product
Our range covers eCommerce mailer boxes for everyday orders, PR mailer boxes for influencer seeding, branded subscription boxes, mailer boxes with inserts that hold each item in place, and seasonal designs such as Christmas mailer boxes. Clothing brands use hat mailer boxes and our matching custom apparel service so the garment and the box arrive as one branded package.
Free design support and a 3D mock-up
Send us your logo, a rough idea or a finished dieline. Our designers prepare a free 3D mock-up so you can see the size, artwork placement and colours before anything is printed. Nothing goes into production until you approve it.
Pricing, minimums and delivery
Every product page shows a “From” price, which is our bulk price per box excluding VAT. Your exact price depends on size, quantity, print and finish, and larger runs bring the price per box down. We keep minimum order quantities low so small brands can order printed packaging, and orders are delivered in 12–14 working days across England, Scotland, Wales and Northern Ireland.
Ready to start? Request a free quote and we will reply within 24 hours. Looking for something other than a mailer? Browse our full custom packaging range.
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Questions about custom mailer boxes
What is a mailer box?
A mailer box is a one-piece folding box made from corrugated board, with a hinged lid, locking front tabs and dust flaps. It assembles without tape and is strong enough to post on its own.
Can you make mailer boxes to my exact size?
Yes. Every mailer box is made to your inside dimensions in millimetres. If you are not sure, tell us what goes inside and we will suggest a size.
Which board should I choose?
Kraft gives a natural brown look and is the most cost-effective. White board shows bright, full-colour print. For heavier items we recommend a double wall or E-flute board, and we will advise when we quote.
Can you print on the inside of the box?
Yes. Inside print is one of the most popular upgrades. Choose “Inside & outside” on the product page and we will include it in your mock-up and price.
Are your mailer boxes recyclable?
Our corrugated mailer boxes are made from recyclable board and can go in UK household paper and card recycling. Kraft board contains a high share of recycled fibre.
How long does delivery take?
Orders arrive in 12–14 working days after you approve your mock-up, with tracked delivery anywhere in the UK.
Not sure which style fits?
Tell us what you’re shipping — we’ll recommend the right box and send a free mock-up.