custom mail box

A custom mail box is a mailer style box made to the size of your product and printed with your own branding, instead of a plain stock box bought off the shelf. Custom Postal Boxes manufactures each custom mail box in house in Wolverhampton for UK businesses, with low minimum order quantities, free design support and free UK delivery. You choose the internal dimensions, the board, the print and the finish, and we build the box around that brief.

What makes a custom mail box different from a stock box

A stock box is made first and your product has to fit it, which usually means extra space, extra fill and a parcel that is bigger than it needs to be. A custom mail box reverses that process. The box is designed around the product, so the fit is snug, the branding is printed as part of the box rather than added with stickers, and the unboxing feels deliberate. For subscription, gift and repeat purchase brands, that consistency from order to order is a large part of the value.

Design choices that shape your custom mail box

Start with structure. The classic mailer style folds from a single sheet of corrugated board into a box with a hinged lid, side dust flaps and a tuck front closure, giving a clean retail look that also travels well. Board can be kraft for a natural finish or white for brighter colour, and print can run across the outside, the inside lid or both. Inserts can be added to hold jars, bottles or several small items in fixed positions, which helps premium products arrive arranged rather than shuffled.

Planning print inside and outside the box

Outside print does the recognisable work: logo, colours and any handling or delivery messages. Inside print is seen at the moment of opening, so it suits a thank you message, usage guidance, a social prompt or the story behind the product. Keeping the outside restrained and the inside more expressive is a popular balance, because the parcel stays discreet in transit while the reveal still feels branded. Our free design support covers artwork checks for both surfaces before production.

Small details that lift a custom mail box

Details such as a self seal strip for fast, tidy closing, a tear open strip for a clean first opening, and printed tissue or a simple card insert can make the box feel considered without changing its structure. These options are worth deciding at design stage, because seal and opening features are built into the cutting forme and cannot be added cleanly once a run has been produced.

Sizing your box and ordering

Measure your product or product set at the widest points, decide how much protective wrap it needs, and use those figures as the internal dimensions of the box. If the finished parcel will travel by post, check it against Royal Mail bands on the Royal Mail tracked services and size guidance page, since a few millimetres can change the postage band. Then compare formats such as our custom mailer boxes made for UK brands and our self seal mailer boxes for fast packing.

For products that need compartments, look at our custom mailer boxes with inserts to hold items in place and the wider custom mailer boxes range for more styles. To begin, request a quote for your custom mail box with the product size, the quantity you have in mind and any artwork you already have, even if it is only a logo file at this stage.

FAQs about custom mail box

Is a custom mail box the same as a mailer box?

Yes, in UK packaging use the terms overlap. A custom mail box usually means a mailer style box that has been customised in size and print for a brand, with a hinged lid and tuck closure. If you have seen a design you like, describe its shape and opening style when you ask for a quote and we will match the structure.

What is the minimum order for a custom mail box?

Custom Postal Boxes works with low minimum order quantities so smaller brands can use properly branded boxes without ordering thousands. The practical minimum depends on box size and print method, and we will confirm it in your quote along with how the unit cost changes at higher quantities, since pricing depends on size, material and quantity.

Can a custom mail box be printed inside as well as outside?

Yes. Inside lid printing is one of the most effective parts of a mailer design because it is revealed at the moment of opening. Brands use it for messages, instructions, ingredient or care notes and repeat order prompts. You can print inside only, outside only or both, and our design support will check that artwork is set up correctly for each surface.

How do I measure my product for a custom mail box?

Measure the product at its widest, longest and tallest points in millimetres, then add the thickness of any wrap or protection it will travel in. Those figures become the internal box dimensions. If several items ship together, arrange them as they will be packed and measure the group, and tell us about any item that must sit in its own compartment.