Custom Mailer Boxes

What are Custom Mailer Boxes?

Custom mailer boxes, also known as custom postal boxes or custom mailing boxes, are self-locking packaging boxes designed for ecommerce, postal, and courier fulfillment. Their interlocking tab closure helps keep the box securely shut without complicated assembly, while pre-scored folds allow it to be formed quickly from a flat-packed shape. The corrugated construction adds structural support during handling and delivery.

Corrugated Mailer Boxes Made to Your Required Size

Corrugated board gives mailer boxes the structural support needed for packaging, handling, and delivery while keeping the packaging lightweight. E-flute corrugated board is available for mailer projects that require a strong but slim fluted structure. 

Kraft corrugated board provides a natural brown appearance, while white corrugated options offer a cleaner surface where a brighter presentation is preferred. 

Each mailer box can be manufactured to the internal length, width, and height required for your product. A closer fit helps limit unnecessary empty space and reduce product movement compared with using an oversized stock box. 

The required board specification can be selected around the product size, packed weight, and level of protection needed during fulfilment rather than using the same construction for every order. 

Custom Printed Mailer Boxes Built Around Your Brand

Custom printed mailer boxes give you control over that first impression while keeping the packaging practical for packing, handling, and delivery. Add your logo prominently on the lid, use brand colours across the exterior, add campaign messaging inside the box, or create a full inside-and-outside design for a more detailed unboxing experience. 

Artwork placement matters on a folding mailer structure. We review the artwork against the box dieline before production, paying attention to folds, locking tabs, panel joins, and cut lines so your logo, important text, and design elements remain properly positioned on assembled mailers. 

Finishing Options for Mailer Boxes

Finishes are used to change the surface appearance or draw attention to selected parts of the design. Available options include matte, gloss, and soft-touch lamination. Spot UV adds contrast to selected areas, while hot stamp foiling highlights a logo, name, or design detail with a metallic effect. Embossing and debossing add a raised or recessed element to suitable artwork. 

The right finish depends on the board, printed design, and effect you want to achieve. It is better to use finishing where it supports the branding rather than applying several effects that compete with each other. 

Mailer Boxes with Inserts and Structural Features

Our custom mailer boxes with inserts and structural features can be tailored around your product and packaging requirements. We create insert layouts that hold individual items securely, separate multiple components, and improve the presentation when the box is opened. 

Custom inserts are suitable for gift sets, cosmetics boxes, candles, and product bundles where a fitted internal arrangement is required. Each insert is customised rather than using standard compartment layouts. 

We also offer structural features such as dust flaps and tear strips where required. These options are developed around the packaging process, shipping requirements, and customer opening experience to create a more secure and practical mailer box solution. 

Ecommerce Mailer Boxes for Different Products

Ecommerce mailer boxes are ideal for brands that send products directly to customers. They provide one outer package that works for fulfilment as well as presentation. You can use them for regular online orders, subscription deliveries, promotional packs, launch kits, and gift collections.

For complete packaging solutions, mailer boxes can be paired with product-specific packaging such as custom cosmetic boxes, custom candle boxes, apparel boxes, and gift boxes. 

For premium product ranges where the inner packaging is part of the unboxing experience, a custom jewellery box or other presentation packaging can be placed inside a branded mailer box for secure delivery. 

Order Custom Mailer Boxes with no MOQ

Custom Box Makers UK has no minimum order quantity, allowing you to order according to the needs of a small run, product launch, seasonal campaign, or larger ecommerce requirement. Our production process typically takes 8-10 business days, with standard and rush shipping options available. We also provide free shipping across the UK. 

To request a quote, provide the required box dimensions, quantity, and the customisation options you want to include.

If you have artwork ready, include it with your quote request. In other cases, we provide free design support.

A 3D digital proof is provided before production so the box layout and artwork positioning can be reviewed before manufacturing begins.