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.
Box Size
(LxWxH)
Product Info
Boxes Per Pack
Price Per box (ex. VAT)
1-11 Packs
12-19 Packs
20+ Packs
1 Pallet
Number of
Boxes
9 x 9 x 9"
22.9 x 22.9 x 22.9cm
228.6 x 228.6 x 228.6mm
25
10 x 10 x 10"
25.4 x 25.4 x 25.4cm
254 x 254 x 254mm
25
12 x 9 x 9"
30.5 x 22.9 x 22.9cm
304.8 x 228.6 x 228.6mm
25
18 x 12 x 12"
45.7 x 30.5 x 30.5cm
457.2 x 304.8 x 304.8mm
25
20 x 6 x 4"
50.8 x 15.2 x 10.2cm
508 x 152.4 x 101.6mm
15
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.
Looking to buy medium postal boxes wholesale? Order a large number of medium mailing boxes from us and take advantage of our amazing discounts.
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 11:45 am Monday-Friday and get same day despatch.
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.
