Medium Parcel Boxes – Ideal for Royal Mail Shipping

Browse our range of medium postal boxes in the table below. We have a great selection of different shapes and sizes to meet your business needs.

Why Buy Medium Postal Boxes?
We make our medium postal boxes from high-quality corrugated cardboard. Their durability ensures your shipped goods arrive safely.

If you're looking for a Royal Mail medium parcel box our packages are ideal as they fit the Royal Mail guidelines. If you would like to learn more about Royal Mail medium parcel sizes you can read our complete packaging size guide.

Discounts On Medium Postal Boxes
Looking to buy medium postal boxes wholesale? Order a large number of medium mailing boxes from us and take advantage of our amazing discounts.

Next Working Day Delivery
In a hurry and need a medium mailing box by tomorrow? Don't panic as we offer next working day delivery as standard, so you can get your package out on time. Order before 15:00 Monday-Thursday and 11:30 Friday to get same day despatch.

Our Postal Boxes
As well as medium parcel postal boxes we supply a wide range of other parcel types, whether you need large letter, small, white or brown boxes.