corrugated packaging UK

corrugated packaging UK buyers choose protects goods with a fluted board layer that cushions knocks and resists crushing, while staying light enough to post economically. Custom Postal Boxes manufactures custom printed postal, mailer and shipping boxes in house in Wolverhampton, with low minimum order quantities, free design support and free UK delivery.

How corrugated packaging UK board is built

Corrugated board is made by bonding a wavy fluted sheet between flat liner sheets. The flutes act like a row of small arches, which is why a light sheet of board can carry a surprising load and spring back after a knock. Larger flutes give more cushioning and stacking strength, while smaller flutes give a smoother surface that takes finer print and suits smaller cartons for retail and posting.

Single wall board has one fluted layer and covers most everyday posting, from clothing and books to cosmetics and homewares. Double wall board has two fluted layers and is the safer choice for heavier goods, for fragile items that need more crush resistance, and for cartons that will be stacked on pallets or in a busy storeroom.

Choosing a board grade without overbuying

Start with the weight of the packed product, how far it will travel and how it will be stored. A light product sold singly online rarely needs the heaviest board, and paying for strength you never use adds cost to every order. Equally, a box that collapses under stacking will cost far more in damaged goods and returns than the saving on board. Describe your product honestly when you ask for a quote so the grade can be matched to the job.

Kraft and white liner finishes

Kraft liners keep the natural brown colour of the board and suit brands that want a plain, recycled looking finish with bold dark print. White liners give brighter colour reproduction and a cleaner shelf look. Both can be printed inside and out, and both are widely recycled in the UK where local collections accept cardboard.

Where corrugated packaging works hardest

Online sellers use corrugated mailer boxes because they arrive flat, fold up quickly and present the product neatly when opened. Warehouses use larger corrugated shipping cartons for bulk movement and storage. Subscription services rely on the same box month after month, so consistent sizing matters because inserts, labels and packing routines are all built around it.

Right sizing is the other big gain. A box that closely fits the product needs less void fill, weighs less, takes less shelf space and is less likely to push a parcel into a larger Royal Mail format. Royal Mail small parcels allow up to 45cm by 35cm by 16cm and 2kg, and medium parcels up to 61cm by 46cm by 46cm and 20kg, so external box dimensions should be checked against those limits.

Print and finish options for corrugated boxes

Custom print can be as simple as a logo and a web address, or a full colour design across every panel. Inside print is popular for mailer boxes because the message is revealed only when the customer opens the lid. Keep barcodes and handling marks on flat panels where scanners and staff can read them easily, and avoid artwork that depends on perfect alignment across a fold.

Ordering and packaging responsibilities

UK organisations that supply packaging may have duties under extended producer responsibility, and the GOV.UK guidance on extended producer responsibility for packaging explains who must register and report. Using only the packaging a product genuinely needs is good practice for cost and for waste. Explore single wall corrugated boxes for lighter goods, corrugated shipping boxes for dispatch and corrugated mailer boxes for online orders, then send your sizes via the contact page for a corrugated packaging quote.

FAQs about corrugated packaging UK

What is corrugated packaging made from?

It is made from paper based board with a wavy fluted layer bonded between flat liner sheets. The flutes give the board its strength and cushioning while keeping it light, and the finished material is widely recycled in the UK once tape and labels are removed where facilities require it.

Should I choose single wall or double wall corrugated board?

Choose single wall for light and medium weight goods that travel singly through the post. Choose double wall for heavier products, fragile goods, long storage periods and cartons that will be stacked. If you are unsure, give the packed weight and the journey the parcel will take when you request a quote.

Can corrugated packaging be custom printed?

Yes. Corrugated postal, mailer and shipping boxes from Custom Postal Boxes are custom printed, inside and out if required. Free design support is available to help you prepare artwork that prints cleanly on the board grade you have chosen.

Why does right sizing matter for corrugated boxes?

A closely fitting box needs less filler, weighs less and takes less storage space. It can also keep a parcel inside a smaller Royal Mail format, which helps control postage spend. Oversized boxes waste board and money on every single order you send.

Do you supply corrugated packaging across the UK?

Yes. The business is based in Wolverhampton, boxes are manufactured in house and UK delivery is free. Ordering is quote based, so pricing depends on the size, material and quantity you need rather than on a fixed list.