custom made mailer boxes

Custom made mailer boxes are cartons designed and produced to the exact size, board and artwork a business needs, rather than taken from a stock shelf. Ordering custom made mailer boxes gives a closer fit for the product, less wasted space in the post and packaging that looks like part of the brand.

Why businesses choose custom made mailer boxes

Stock cartons rarely match a real product range. A bottle set, a folded garment and a boxed candle all occupy space differently, and a compromise size usually means extra void fill and a parcel that feels loose. A made to measure mailer starts from the product itself, so the walls sit close, the lid closes without strain, and the finished parcel feels deliberate when the customer lifts it from the doorstep.

The branding gain is just as important. Your logo, colours and product information are printed as part of the box, not added later with stickers or tape. Browse Custom Mailer Boxes UK and Printed Postal Boxes to see the direction most brands take, from a single colour logo on kraft board to detailed artwork across every panel.

How the design process works step by step

The process begins with measurements. You share the product size, weight and how it will be packed, and the box is drawn around those figures with the right allowance for inserts or wrapping. Artwork is then placed on a template of the flat box, so you can check where the logo falls on the lid and what the customer sees inside. Free design support is included at Custom Postal Boxes, which helps smaller brands prepare print ready artwork without an in house designer.

Testing a sample before the full run

A sample or careful proof check is worth the short wait. Fold the box, place the product inside, close the lid and give the parcel a gentle shake. If the product moves, the size or insert needs adjusting before the full run is produced, and small corrections at this stage protect the whole order.

Sizes, inserts and closures to consider

Internal size drives everything else. Tell the maker whether your measurements include tissue, a sleeve or a protective insert, because those layers change the space the box must provide. Inserts cut from card can hold jars, bottles or tools in separate compartments, and the range at Custom Mailer Boxes With Inserts shows how a simple divider can stop items touching in transit and improve how the contents look on opening.

Closure style affects packing speed. A tuck in lid suits most presentation mailers, while a self sealing strip speeds up a busy packing bench and a tear strip helps the customer open the parcel neatly. Look at Self Seal Mailer Boxes if your team packs many orders each day. Whichever closure you choose, confirm it stays shut under the normal stacking and handling of the postal network.

Ordering custom mailers in the UK

Think about postage while the size is still flexible. A few millimetres can move a parcel between Royal Mail bands, and the official limits are explained on the Royal Mail Tracked 24 page. Designing the box and the postage choice together keeps delivery costs predictable once orders grow. It also helps to decide early whether returns matter, because a second sealing strip or a slightly stronger board can make a returned product easier to resend.

Custom Postal Boxes is a project of Vertex Packaging, based in Wolverhampton, and its boxes are manufactured in house for UK businesses. Low minimum order quantities make a first custom run realistic for small brands, and free UK delivery applies to orders. Pricing depends on size, material and quantity, so send your measurements and artwork ideas through the contact page to request a quote and get a figure based on your exact box.

FAQs about custom made mailer boxes

What measurements do I need to give for a custom mailer?

Give the length, width and height of the product as it will be packed, including any insert, sleeve or wrapping. Add the product weight and say how many items sit in each box, because those details decide the internal size and board strength.

Can I print inside the box as well as outside?

Yes. Many brands keep the outside clean for delivery and print a message, pattern or care information inside the lid. Planning both surfaces at artwork stage is simpler than adding inside print later, and the design team can help you set the files up.

What is the minimum order for custom made mailers?

Custom Postal Boxes offers low minimum order quantities, which suits new product launches and smaller brands testing a design. The practical minimum for your box depends on its size and print, so ask when you request a quote and the options can be explained.

How do inserts improve a custom mailer box?

Inserts hold each item in its own space, stop surfaces rubbing together and present the contents in a set order when the lid opens. They are useful for sets, glass or ceramic goods and any product where movement in transit could cause damage.