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Custom printed packaging for UK brands
Mailer Boxes

Custom Mailer Boxes

Made to your exact size and specification

Corrugated mailer boxes made to your custom size, with a self-locking structure for subscription and ecommerce despatch. The internal fit and any insert are the decisions that matter, holding the product still through the post and shaping the unboxing.

Digital proof to approve before we print · Made to your spec

Budget Estimator

Box dimensions
Dimensions (inches)
Estimated price £188.80 – £306.80 £1.89 – £3.07 / unit
Quantity discounts
100–249 units £1.89 – £3.07 / unit
250–499 units £1.47 – £2.39 / unit
500–999 units £1.17 – £1.90 / unit
1,000–4,999 units £0.81 – £1.32 / unit
5,000+ units £0.53 – £0.86 / unit

Illustrative, non-binding budget range only. Final pricing depends on exact dimensions, material, print method, finishing, tooling and freight, and is confirmed in a written quote.

Excludes delivery, custom tooling/dielines, VAT and duties.

Get exact written quote
Price
£2.95
Size
Made to your custom size
Material
Corrugated cardboard
Minimum order
100 units
1 Tell us your size, quantity and finish
2 Review your proof — Digital proof to approve before we print
3 We print and deliver across the UK

Description

Custom Mailer Boxes are self-contained cartons built for the ecommerce journey, from single orders to subscription runs. The folding structure locks together without loose lids or extra parts, so packing is quick and the box arrives with a clean, printable exterior.

Made to your custom size, the internal footprint can be matched to your product so it does not slide during transit. A snug fit protects the item and shapes the moment of opening, which for subscription and gifting brands is part of what the box is for. Telling us whether the box is a one-off order or part of a repeating subscription also helps, since that can influence how much interior branding is worthwhile.

Shaping the unboxing

Inside print and a fitted insert turn a plain despatch box into a considered reveal. Decide how much of the interior you want to brand and whether the product needs holding in place, then check the effect on a sample before a full run.

Specification points

  • Corrugated construction for transit protection
  • Self-locking structure for fast packing
  • Custom internal size and optional fitted insert
  • Inside and outside print for the unboxing

Minimum order is 100 units. Send your product dimensions and any insert needs, tell us how much of the interior you want to brand, and we will quote the mailer, insert and inside-and-outside print for the unboxing.

Buyer’s guide — before you ask for a quote

Honest answers to help you specify this box. Where a detail depends on your job, we say so rather than guess.

What size should I order, and can you make it to my dimensions?
This box is made to your own size. Measure your product's length, width and height and allow a little clearance for easy packing, then send us those internal dimensions. Unsure of the best fit? Confirm with our team and we can advise or arrange a sample.
Which material and board weight is right for my product?
The material shown for this product is Corrugated cardboard. Other boards and weights may also suit your product depending on how much protection and rigidity you need. Tell us what you are packing and we can recommend a suitable option — Confirm with our team if you would like to compare.
What printing and finishing options can I ask about?
When you enquire it helps to tell us how many print colours you need (or whether you have Pantone references) and whether you want a finish such as matt or gloss lamination, soft-touch, spot UV, foil or embossing. Availability and cost of each finish depend on your box and quantity, so Confirm with our team to check what is possible for this product.
How should I prepare my artwork, and will I see a proof?
Supply print-ready artwork as a vector PDF or AI file with fonts outlined, images at 300dpi and any brand colours specified. If you do not yet have a dieline, ask us for one for this box so your design lines up with the cut and fold. We share a proof for you to approve before anything is printed — Confirm with our team for current proofing timescales and file requirements.
How is the price worked out?
£2.95 per unit as currently listed — your exact price is confirmed in a free written quote. Price depends on your size, quantity, board, number of print colours and any special finishes — larger quantities usually lower the unit cost.
What is the minimum order and how do I place an order?
The listed minimum order for this product is 100 units. To order, send us your size, quantity, material and finish for a free written quote, approve your proof, then we move to production. If you need a different quantity, Confirm with our team.
How far ahead should I plan for delivery?
Production starts once you approve your proof, so plan your deadline back from there and allow time for artwork, proofing and delivery. Lead times vary by product, quantity and finish and are not fixed on this page — Confirm with our team for a realistic timescale for your order before you commit to a date.
Are there any compliance or safety points I should raise?
This product sits in our Mailer Boxes range. If your packaging has legal or safety requirements — for example food-contact suitability, child-resistant or tamper-evident features, or specific recycling and labelling marks — tell us at enquiry stage so we can confirm what is achievable for this box. We will not claim a certification or standard we cannot evidence, so confirm with our team about your specific requirements.
  • ProofDigital proof to approve before we print
  • DeliveryUK delivery

Choose Your Material & Finish

Every box is made to order — pick a board that suits your product, then make it yours with a finish.

Most popular

SBS Cardboard

Smooth white board commonly used for retail and cosmetic cartons. Ask about the specification needed for food-contact applications.

Natural finish

Kraft

Natural brown fibre-based board with a tactile look. Recyclability and biodegradability depend on the full specification, finishes and local collection rules — confirm these requirements with our team.

For shipping

Corrugated

Fluted layers absorb knocks in transit — the right choice for mailer boxes and e-commerce orders.

Luxury

Rigid Board

Thick, solid and substantial. The premium feel used for jewellery, perfume and gift presentation.

Finishing touches

Matt lamination Gloss lamination Soft-touch Foil stamping Spot UV Embossing & debossing Die-cut window

Not sure what suits your product? Ask in your quote and we can compare suitable boards and finishes. Digital proof to approve before we print.

Custom Mailer Boxes Get Quote