Browse our full range of large letter postal boxes in the table below or use our handy Box Finder if you need help locating the right parcel.
Box Size
(LxWxH)
Image
Product Info
Boxes Per Pack
Price Per box (ex. VAT)
1-11 Packs
12-19 Packs
20+ Packs
1 Pallet
Number of
Boxes
C5 Large Letter Postal Box
9 x 6.3 x 0.6"
C5 Large Letter Postal Box
22.9 x 15.9 x 1.6cm
C5 Large Letter Postal Box
229.1 x 159 x 16mm
50
Single Wall Postal Box With Tape
11.8 x 6.7 x 0.8"
Single Wall Postal Box With Tape
30 x 17 x 2.1cm
Single Wall Postal Box With Tape
299.7 x 170.2 x 20.8mm
50
31p
30p
28p
27p
12" Vinyl Record Taped Postal Pack
12.5 x 12.5 x 2.7"
12" Vinyl Record Taped Postal Pack
31.8 x 31.8 x 6.9cm
12" Vinyl Record Taped Postal Pack
317.5 x 317.5 x 68.6mm
25
C4 New Style Large Letter Postal Box
12.8 x 8.9 x 0.6"
C4 New Style Large Letter Postal Box
32.5 x 22.6 x 1.5cm
C4 New Style Large Letter Postal Box
325.1 x 226.1 x 15.2mm
50
25p
23p
22p
20p
C4 Large Letter Postal Box
12.8 x 8.9 x 0.6"
C4 Large Letter Postal Box
32.6 x 22.7 x 1.6cm
C4 Large Letter Postal Box
325.9 x 227.1 x 16mm
50
Single Wall Postal Box
13.2 x 7.2 x 0.9"
Single Wall Postal Box
33.5 x 18.2 x 2.2cm
Single Wall Postal Box
335 x 181.9 x 21.8mm
50
27p
26p
24p
23p
We make all our large letter postal boxes with high-quality corrugated cardboard. These durable large letter mailing boxes ensure that your shipped goods arrive safely.
If you're searching for PIP large letter boxes, these boxes are ideal as they meet Royal Mail guidelines. If you would like to learn more about Royal Mail large letter box dimensions you can read our full packaging guide.
Need a high number of large letter postal boxes for your business? Order in bulk from us and take advantage of our amazing discounts.
Need a large letter cardboard 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 15:00pm Monday to Thursday and 11.30am Friday for next working day delivery.
As well as large letter cardboard boxes we supply a wide range of postal boxes, whether you need a small, medium, white or brown package.
