Custom Mailers

Cardboard Document Mailers

Cardboard Document Mailers built to your specification — your dimensions, your board, your print.

Minimum order
100 units
Production
3–5 business days
Construction
mailer box
Delivery
Free shipping

Order online

Starting from $0.30 per mailer

Free shipping to the US, UK, Canada and Australia

Pay by PayPal invoice or bank transfer after you approve your free proof, or cash on delivery in the US and Canada. The price covers our standard build. Special sizes, materials and finishes are priced by quote.

No obligation

Start a quote

Name, email, phone and what you are packing and how it ships. Attach artwork if you have it. We reply with a specification and a custom quote, usually within one business day.

The more detail you give, the more accurate the quote.

Drop files here or browse

PDF, AI, EPS, SVG, PNG, JPG, WEBP or ZIP. Up to 5 files, 10 MB each.

    We use your details to answer this request only. See our privacy policy for how data is handled.

    How cardboard document mailers fail, and what prevents it

    The closure is the weak point — a board mailer that opens in transit exposes the contents entirely.

    If the contents are confidential, the closure needs a tamper-evident seal rather than a tuck.

    What cardboard document mailers have to cope with

    Cardboard Document Mailers hold documents where a board construction gives more rigidity than an envelope. That is the starting point for the specification, because if the contents are confidential, the closure needs a tamper-evident seal rather than a tuck.

    In service they are used for despatch of contracts, certificates and records where both flatness and security matter.

    Where cardboard document mailers are actually used

    Cardboard Document Mailers are specified for despatch of contracts, certificates and records where both flatness and security matter. If the contents are confidential, the closure needs a tamper-evident seal rather than a tuck.

    • Despatch of contracts, certificates and records where both flatness and security matter
    • Direct-to-consumer shipping
    • Subscription boxes
    • Influencer and PR sends

    Holding the contents in place

    Where a product needs to be held still, a fitted insert cut to its profile does more for damage rates than a heavier outer board. It usually costs less too, because you can drop a grade on the outer.

    • Interior print
    • Tear strip
    • Double-sided tape strip
    • Custom insert
    • Branded tissue

    The substrate for cardboard document mailers

    Rigid board or E-flute with a peel-and-seal or tamper-evident closure where confidentiality applies.

    The options we would consider for this format are below; if the contents are confidential, the closure needs a tamper-evident seal rather than a tuck.

    • E-flute corrugated
    • F-flute corrugated
    • White-top E-flute
    • Kraft E-flute

    Sizing cardboard document mailers

    A4 and US Letter footprints predominantly, with a shallow depth for a modest document count.

    Send the contents rather than a box size. Board construction is chosen for rigidity and then closed with a simple tuck, which is not secure enough for confidential contents.

    Getting them to you, and onward

    Mailers arrive flat and score-folded, ready to assemble by hand in a few seconds each.

    Delivery windows are confirmed in writing when your order moves into production, and we flag any risk to the date before you approve rather than after.

    What moves the price

    Four things drive a quote more than anything else: the quantity, the print route, the board grade and the number of finishing passes. Dimensions matter too, but usually through how efficiently the shape nests on the press sheet.

    Online orders on our standard build start from $0.30 per unit with free shipping. For anything beyond that build we quote, and if a cheaper route exists we say so at quoting rather than after the invoice.

    Ordering cardboard document mailers

    Send the product dimensions, the quantity and your deadline. What comes back is a board grade, a structure, a print method, a lead time and a custom quote — not a number on its own.

    We send a dieline sized to your product, check your artwork and issue a proof. For shipping formats we will also flag it if the pack looks a size larger than it needs to be.

    Checking it before you commit

    Ask for an unprinted sample if the question is fit, or a printed prototype if the question is color. They answer different things.

    Sample costs are normally credited against the production order.

    Reference

    Cardboard Document Mailers at a specification level

    ProductCardboard Document Mailers
    CategoryCustom Mailers
    ConstructionRoll-end tuck-front, tape-free assembly
    Board gradeE-flute or F-flute corrugated
    Ships asFlat with pre-scored folds
    MaterialsE-flute corrugated, F-flute corrugated, White-top E-flute, Kraft E-flute
    PrintingDigital press, Flexography, Litho-lamination
    FinishesMatte lamination, Gloss lamination, Soft-touch lamination, Spot UV, Interior flood print
    Minimum orderMinimum order is 100 units on any format, and unit cost falls sharply as the quantity rises.
    Lead time3 to 5 business days after artwork approval
    PriceStarting from $0.30 per mailer on the standard build
    ShippingFree to the US, UK, Canada and Australia

    Specification builder

    Design Your Custom Cardboard Document Mailers

    Set what you know, leave the rest. Everything here travels with your request, so nothing gets retyped.

    • 100-unit minimum
    • 3–5 day production
    • Free dieline
    • No obligation
    Approximation only — proportions, color family and finish character. Not a color proof, and the panel shown is a placeholder, not your artwork.
    Cardboard Document Mailers photo 1 for your custom designCardboard Document Mailers photo 2 for your custom designCardboard Document Mailers photo 3 for your custom design
    Start from these cardboard document mailers and change anything in the form.
    Packaging type
    Box style
    Quantity
    Color
    Material
    Printing
    Finish

    Drop files or browse

    Up to 5 files, 10 MB each.

      Order online starting from $0.30 per unit on our standard build, with free shipping to the US, UK, Canada and Australia. Special sizes, materials, finishes and large runs are priced by quote.

      In transit

      What this build protects against

      Cut to the load

      A4 and US Letter footprints predominantly, with a shallow depth for a modest document count.

      The failure we design out

      The closure is the weak point — a board mailer that opens in transit exposes the contents entirely.

      Where it has to work

      Specified for despatch of contracts, certificates and records where both flatness and security matter.

      The detail that matters

      If the contents are confidential, the closure needs a tamper-evident seal rather than a tuck.

      This format sits in our custom mailers range, alongside 31 other made-to-order formats.

      Answers

      Cardboard Document Mailers: protection and transit

      Specification, minimums and lead times for cardboard document mailers.

      Can document mailers be made tamper-evident?

      Yes — a peel-and-seal closure or an applied security seal both show interference. A plain tuck closure does not, which matters if the contents are confidential.

      How do I reduce dimensional weight for cardboard document mailers?

      Measure the product rather than the box currently in use. Most operations we quote are running at least one size too large with void fill compensating, and dropping a band saves on every parcel cardboard document mailers carry.

      Should the outside be printed for cardboard document mailers?

      That is a brand decision, not a cost or protection one. For direct-to-consumer parcels where the customer opens it, print can be worth it. For business deliveries it usually is not.

      Will a heavier board reduce my damage rate for cardboard document mailers?

      Only if boxes are arriving crushed. If they arrive intact with damaged contents, the product is moving inside and a heavier outer changes nothing. A fitted insert solves that case, usually at lower cost.

      Do you supply inserts with the outer for cardboard document mailers?

      Yes, and for cardboard document mailers we prefer to specify both together. A cavity that holds the contents still often lets us drop a grade on the outer, so the pair can cost less than an over-specified box alone.

      What do cardboard document mailers cost?

      Ordered online, cardboard document mailers start from $0.30 per unit on our standard build, with free shipping to the US, UK, Canada and Australia. For special sizes, materials or large runs we quote, and for this format the biggest levers are quantity, print route, board grade and how many finishing passes are involved. An insert often lowers the total rather than raising it, because holding the contents still lets us drop a grade on the outer.

      Can I see a sample of cardboard document mailers first?

      Yes. We can send a plain unprinted sample so you can check the fit and structure, or a printed prototype for color and finish. Sample costs are normally credited against the production order. On cardboard document mailers the thing to check is whether the contents still sit tight once the pack is closed, because movement inside is what causes damage rather than the board grade.

      Can you match the cardboard document mailers we already use?

      Send the current specification or a physical sample and we will quote to match it rather than proposing an alternative you would then have to re-approve internally. A physical sample tells us more than a specification sheet — board caliper and coating are usually described loosely and measured exactly.

      Where do you deliver cardboard document mailers?

      All 50 US states, the United Kingdom, Canada and Australia, on the same timeline everywhere: 3 to 5 business days of production after artwork approval, then 5 to 7 business days in transit. Every run is made to order and shipped directly to your address rather than pulled from stock, so you receive current production rather than whatever has been sitting in a warehouse. Freight is costed separately by weight, volume and destination. If you are shipping to a fulfillment center rather than your own address, send their receiving requirements with the order — pallet height and labeling rules are usually fixed and refusals are expensive.

      Can I order cardboard document mailers in a custom size?

      Every run is cut to your dimensions — there are no stock sizes here. Send the product measurements rather than a box size and we will build the mailer box around them, then send a dieline template you can design onto.

      What happens after I approve a quote for cardboard document mailers?

      We issue a dieline template sized to your product, prepress checks your artwork against it, and a proof comes back for sign-off. Nothing runs until you approve that proof, and mailer boxes then take 3 to 5 business days.

      Can you hold our cardboard document mailers specification for repeat orders?

      Yes. Once a first run is approved we hold the board, structure, dimensions, print method and finishes against your account, so a reorder references the same specification exactly rather than being re-derived. It also means a reorder can be priced against a larger quantity without re-opening the specification.

      Next step

      Get a price for Cardboard Document Mailers

      Send the dimensions, the quantity and how it ships. We reply with a full specification and a custom quote, usually within one business day.