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Royal Mail Postal Boxes

Royal Mail Postal Boxes

Browse our full range of cardboard postal boxes in the table below. We have a wide range of Royal Mail postal boxes in a variety of sizes to suit any item you need to be posted. Read our handy packaging guide if you need help understanding Royal Mail parcel sizes.

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

Buy Now

Single Wall Cardboard Box
4 x 4 x 4"
Single Wall Cardboard Box
4 x 4 x 4"

Single Wall Cardboard Box
10.2 x 10.2 x 10.2cm
Single Wall Cardboard Box
10.2 x 10.2 x 10.2cm

Single Wall Cardboard Box
101.6 x 101.6 x 101.6mm
Single Wall Cardboard Box
101.6 x 101.6 x 101.6mm

50

18p

17p

15p

+ -

Single Wall Cardboard Box
4 x 4 x 8"
Single Wall Cardboard Box
4 x 4 x 8"

Single Wall Cardboard Box
10.2 x 10.2 x 20.3cm
Single Wall Cardboard Box
10.2 x 10.2 x 20.3cm

Single Wall Cardboard Box
101.6 x 101.6 x 203.2mm
Single Wall Cardboard Box
101.6 x 101.6 x 203.2mm

50

22p

21p

19p

+ -

Double Wall Cardboard Box
4 x 4 x 13"
Double Wall Cardboard Box
4 x 4 x 13"

Double Wall Cardboard Box
10.2 x 10.2 x 33cm
Double Wall Cardboard Box
10.2 x 10.2 x 33cm

Double Wall Cardboard Box
101.6 x 101.6 x 330.2mm
Double Wall Cardboard Box
101.6 x 101.6 x 330.2mm

15

45p

42p

37p

34p

+ -

Single Wall Cardboard Box
5 x 5 x 2.5"
Single Wall Cardboard Box
5 x 5 x 2.5"

Single Wall Cardboard Box
12.7 x 12.7 x 6.4cm
Single Wall Cardboard Box
12.7 x 12.7 x 6.4cm

Single Wall Cardboard Box
127 x 127 x 63.5mm
Single Wall Cardboard Box
127 x 127 x 63.5mm

50

19p

18p

16p

+ -

Single Wall Subscription Box (Brown)
5.5 x 4.4 x 1.3"
Single Wall Subscription Box (Brown)
5.5 x 4.4 x 1.3"

Single Wall Subscription Box (Brown)
14 x 11.2 x 3.3cm
Single Wall Subscription Box (Brown)
14 x 11.2 x 3.3cm

Single Wall Subscription Box (Brown)
139.7 x 111.8 x 33mm
Single Wall Subscription Box (Brown)
139.7 x 111.8 x 33mm

50

17p

15p

13p

12p

+ -

Single Wall Subscription Box (White)
5.5 x 4.4 x 1.3"
Single Wall Subscription Box (White)
5.5 x 4.4 x 1.3"

Single Wall Subscription Box (White)
14 x 11.2 x 3.3cm
Single Wall Subscription Box (White)
14 x 11.2 x 3.3cm

Single Wall Subscription Box (White)
139.7 x 111.8 x 33mm
Single Wall Subscription Box (White)
139.7 x 111.8 x 33mm

50

18p

16p

14p

13p

+ -

Single Wall Subscription Box (Brown)
5.5 x 8.8 x 1.3"
Single Wall Subscription Box (Brown)
5.5 x 8.8 x 1.3"

Single Wall Subscription Box (Brown)
14 x 22.4 x 3.3cm
Single Wall Subscription Box (Brown)
14 x 22.4 x 3.3cm

Single Wall Subscription Box (Brown)
139.7 x 223.5 x 33mm
Single Wall Subscription Box (Brown)
139.7 x 223.5 x 33mm

50

22p

20p

18p

17p

+ -

Single Wall Subscription Box (White)
5.5 x 8.8 x 1.3"
Single Wall Subscription Box (White)
5.5 x 8.8 x 1.3"

Single Wall Subscription Box (White)
14 x 22.4 x 3.3cm
Single Wall Subscription Box (White)
14 x 22.4 x 3.3cm

Single Wall Subscription Box (White)
139.7 x 223.5 x 33mm
Single Wall Subscription Box (White)
139.7 x 223.5 x 33mm

50

23p

21p

19p

18p

+ -

Single Wall Cardboard Box
6 x 4 x 3"
Single Wall Cardboard Box
6 x 4 x 3"

Single Wall Cardboard Box
15.2 x 10.2 x 7.6cm
Single Wall Cardboard Box
15.2 x 10.2 x 7.6cm

Single Wall Cardboard Box
152.4 x 101.6 x 76.2mm
Single Wall Cardboard Box
152.4 x 101.6 x 76.2mm

50

24p

23p

20p

18p

+ -

Single Wall Cardboard Box
6 x 4 x 4"
Single Wall Cardboard Box
6 x 4 x 4"

Single Wall Cardboard Box
15.2 x 10.2 x 10.2cm
Single Wall Cardboard Box
15.2 x 10.2 x 10.2cm

Single Wall Cardboard Box
152.4 x 101.6 x 101.6mm
Single Wall Cardboard Box
152.4 x 101.6 x 101.6mm

50

19p

18p

17p

+ -

Double Wall Cardboard Box
6 x 5 x 4"
Double Wall Cardboard Box
6 x 5 x 4"

Double Wall Cardboard Box
15.2 x 12.7 x 10.2cm
Double Wall Cardboard Box
15.2 x 12.7 x 10.2cm

Double Wall Cardboard Box
152.4 x 127 x 101.6mm
Double Wall Cardboard Box
152.4 x 127 x 101.6mm

15

46p

41p

39p

36p

+ -

Single Wall Cardboard Box
6 x 5 x 4"
Single Wall Cardboard Box
6 x 5 x 4"

Single Wall Cardboard Box
15.2 x 12.7 x 10.2cm
Single Wall Cardboard Box
15.2 x 12.7 x 10.2cm

Single Wall Cardboard Box
152.4 x 127 x 101.6mm
Single Wall Cardboard Box
152.4 x 127 x 101.6mm

50

19p

18p

16p

+ -

Single Wall Cardboard Box
6 x 6 x 6"
Single Wall Cardboard Box
6 x 6 x 6"

Single Wall Cardboard Box
15.2 x 15.2 x 15.2cm
Single Wall Cardboard Box
15.2 x 15.2 x 15.2cm

Single Wall Cardboard Box
152.4 x 152.4 x 152.4mm
Single Wall Cardboard Box
152.4 x 152.4 x 152.4mm

50

22p

21p

17p

+ -

Single Wall Cardboard Box
7 x 5 x 2.5"
Single Wall Cardboard Box
7 x 5 x 2.5"

Single Wall Cardboard Box
17.8 x 12.7 x 6.4cm
Single Wall Cardboard Box
17.8 x 12.7 x 6.4cm

Single Wall Cardboard Box
177.8 x 127 x 63.5mm
Single Wall Cardboard Box
177.8 x 127 x 63.5mm

50

20p

19p

17p

+ -

Single Wall Lidded Box
7 x 5 x 2.5"
Single Wall Lidded Box
7 x 5 x 2.5"

Single Wall Lidded Box
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box
177.8 x 127 x 63.5mm
Single Wall Lidded Box
177.8 x 127 x 63.5mm

50

30p

28p

27p

25p

+ -

Single Wall Lidded Box (Printed Baby Pink)
7 x 5 x 2.5"
Single Wall Lidded Box (Printed Baby Pink)
7 x 5 x 2.5"

Single Wall Lidded Box (Printed Baby Pink)
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box (Printed Baby Pink)
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box (Printed Baby Pink)
177.8 x 127 x 63.5mm
Single Wall Lidded Box (Printed Baby Pink)
177.8 x 127 x 63.5mm

25

38p

36p

34p

32p

+ -

Single Wall Lidded Box (Printed Black)
7 x 5 x 2.5"
Single Wall Lidded Box (Printed Black)
7 x 5 x 2.5"

Single Wall Lidded Box (Printed Black)
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box (Printed Black)
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box (Printed Black)
177.8 x 127 x 63.5mm
Single Wall Lidded Box (Printed Black)
177.8 x 127 x 63.5mm

25

38p

36p

34p

32p

+ -

Single Wall Lidded Box (Printed Blue)
7 x 5 x 2.5"
Single Wall Lidded Box (Printed Blue)
7 x 5 x 2.5"

Single Wall Lidded Box (Printed Blue)
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box (Printed Blue)
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box (Printed Blue)
177.8 x 127 x 63.5mm
Single Wall Lidded Box (Printed Blue)
177.8 x 127 x 63.5mm

25

38p

36p

34p

32p

+ -

Single Wall Lidded Box (Printed Hot Pink)
7 x 5 x 2.5"
Single Wall Lidded Box (Printed Hot Pink)
7 x 5 x 2.5"

Single Wall Lidded Box (Printed Hot Pink)
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box (Printed Hot Pink)
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box (Printed Hot Pink)
177.8 x 127 x 63.5mm
Single Wall Lidded Box (Printed Hot Pink)
177.8 x 127 x 63.5mm

25

38p

36p

34p

32p

+ -

Single Wall Lidded Box (Printed Orange)
7 x 5 x 2.5"
Single Wall Lidded Box (Printed Orange)
7 x 5 x 2.5"

Single Wall Lidded Box (Printed Orange)
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box (Printed Orange)
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box (Printed Orange)
177.8 x 127 x 63.5mm
Single Wall Lidded Box (Printed Orange)
177.8 x 127 x 63.5mm

25

38p

36p

34p

32p

+ -

Single Wall Lidded Box (Printed Purple)
7 x 5 x 2.5"
Single Wall Lidded Box (Printed Purple)
7 x 5 x 2.5"

Single Wall Lidded Box (Printed Purple)
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box (Printed Purple)
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box (Printed Purple)
177.8 x 127 x 63.5mm
Single Wall Lidded Box (Printed Purple)
177.8 x 127 x 63.5mm

25

38p

36p

34p

32p

+ -

Single Wall Lidded Box (Printed Red)
7 x 5 x 2.5"
Single Wall Lidded Box (Printed Red)
7 x 5 x 2.5"

Single Wall Lidded Box (Printed Red)
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box (Printed Red)
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box (Printed Red)
177.8 x 127 x 63.5mm
Single Wall Lidded Box (Printed Red)
177.8 x 127 x 63.5mm

25

38p

36p

34p

32p

+ -

Single Wall Lidded Box (Printed White)
7 x 5 x 2.5"
Single Wall Lidded Box (Printed White)
7 x 5 x 2.5"

Single Wall Lidded Box (Printed White)
17.8 x 12.7 x 6.4cm
Single Wall Lidded Box (Printed White)
17.8 x 12.7 x 6.4cm

Single Wall Lidded Box (Printed White)
177.8 x 127 x 63.5mm
Single Wall Lidded Box (Printed White)
177.8 x 127 x 63.5mm

25

33p

31p

29p

27p

+ -

Single Wall Cardboard Box
7 x 5 x 5"
Single Wall Cardboard Box
7 x 5 x 5"

Single Wall Cardboard Box
17.8 x 12.7 x 12.7cm
Single Wall Cardboard Box
17.8 x 12.7 x 12.7cm

Single Wall Cardboard Box
177.8 x 127 x 127mm
Single Wall Cardboard Box
177.8 x 127 x 127mm

50

20p

19p

16p

+ -

Single Wall Cardboard Box
8 x 6 x 2"
Single Wall Cardboard Box
8 x 6 x 2"

Single Wall Cardboard Box
20.3 x 15.2 x 5.1cm
Single Wall Cardboard Box
20.3 x 15.2 x 5.1cm

Single Wall Cardboard Box
203.2 x 152.4 x 50.8mm
Single Wall Cardboard Box
203.2 x 152.4 x 50.8mm

25

30p

29p

25p

+ -

Double Wall Cardboard Box
8 x 6 x 4"
Double Wall Cardboard Box
8 x 6 x 4"

Double Wall Cardboard Box
20.3 x 15.2 x 10.2cm
Double Wall Cardboard Box
20.3 x 15.2 x 10.2cm

Double Wall Cardboard Box
203.2 x 152.4 x 101.6mm
Double Wall Cardboard Box
203.2 x 152.4 x 101.6mm

15

51p

48p

45p

+ -

Single Wall Cardboard Box
9 x 6 x 2"
Single Wall Cardboard Box
9 x 6 x 2"

Single Wall Cardboard Box
22.9 x 15.2 x 5.1cm
Single Wall Cardboard Box
22.9 x 15.2 x 5.1cm

Single Wall Cardboard Box
228.6 x 152.4 x 50.8mm
Single Wall Cardboard Box
228.6 x 152.4 x 50.8mm

25

24p

21p

18p

15p

+ -

Double Wall Cardboard Box
9 x 6 x 3"
Double Wall Cardboard Box
9 x 6 x 3"

Double Wall Cardboard Box
22.9 x 15.2 x 7.6cm
Double Wall Cardboard Box
22.9 x 15.2 x 7.6cm

Double Wall Cardboard Box
228.6 x 152.4 x 76.2mm
Double Wall Cardboard Box
228.6 x 152.4 x 76.2mm

15

52p

49p

46p

38p

+ -

Double Wall Cardboard Box
9 x 6 x 6"
Double Wall Cardboard Box
9 x 6 x 6"

Double Wall Cardboard Box
22.9 x 15.2 x 15.2cm
Double Wall Cardboard Box
22.9 x 15.2 x 15.2cm

Double Wall Cardboard Box
228.6 x 152.4 x 152.4mm
Double Wall Cardboard Box
228.6 x 152.4 x 152.4mm

15

56p

51p

48p

+ -

C5 New Style Large Letter Postal Box
9 x 6.3 x 0.6"
C5 New Style Large Letter Postal Box
9 x 6.3 x 0.6"

C5 New Style Large Letter Postal Box
22.9 x 16 x 1.5cm
C5 New Style Large Letter Postal Box
22.9 x 16 x 1.5cm

C5 New Style Large Letter Postal Box
228.6 x 160 x 15.2mm
C5 New Style Large Letter Postal Box
228.6 x 160 x 15.2mm

50

16p

15p

13p

12p

+ -

Single Wall Cardboard Box
9 x 9 x 6"
Single Wall Cardboard Box
9 x 9 x 6"

Single Wall Cardboard Box
22.9 x 22.9 x 15.2cm
Single Wall Cardboard Box
22.9 x 22.9 x 15.2cm

Single Wall Cardboard Box
228.6 x 228.6 x 152.4mm
Single Wall Cardboard Box
228.6 x 228.6 x 152.4mm

25

40p

32p

30p

28p

+ -

C5 Large Letter Postal Box
9 x 6.3 x 0.6"
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
22.9 x 15.9 x 1.6cm

C5 Large Letter Postal Box
229.1 x 159 x 16mm
C5 Large Letter Postal Box
229.1 x 159 x 16mm

50

19p

18p

16p

+ -

Single Wall Lidded Box
10 x 7 x 3"
Single Wall Lidded Box
10 x 7 x 3"

Single Wall Lidded Box
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box
254 x 177.8 x 76.2mm
Single Wall Lidded Box
254 x 177.8 x 76.2mm

50

52p

49p

47p

+ -

Single Wall Lidded Box (Printed Blue)
10 x 7 x 3"
Single Wall Lidded Box (Printed Blue)
10 x 7 x 3"

Single Wall Lidded Box (Printed Blue)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed Blue)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed Blue)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed Blue)
254 x 177.8 x 76.2mm

25

74p

70p

67p

+ -

Single Wall Lidded Box (Printed Baby Pink)
10 x 7 x 3"
Single Wall Lidded Box (Printed Baby Pink)
10 x 7 x 3"

Single Wall Lidded Box (Printed Baby Pink)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed Baby Pink)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed Baby Pink)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed Baby Pink)
254 x 177.8 x 76.2mm

25

74p

70p

67p

65p

+ -

Single Wall Lidded Box (Printed Black)
10 x 7 x 3"
Single Wall Lidded Box (Printed Black)
10 x 7 x 3"

Single Wall Lidded Box (Printed Black)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed Black)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed Black)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed Black)
254 x 177.8 x 76.2mm

25

74p

70p

67p

65p

+ -

Single Wall Lidded Box (Printed Blue)
10 x 7 x 3"
Single Wall Lidded Box (Printed Blue)
10 x 7 x 3"

Single Wall Lidded Box (Printed Blue)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed Blue)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed Blue)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed Blue)
254 x 177.8 x 76.2mm

25

74p

70p

67p

65p

+ -

Single Wall Lidded Box (Printed Hot Pink)
10 x 7 x 3"
Single Wall Lidded Box (Printed Hot Pink)
10 x 7 x 3"

Single Wall Lidded Box (Printed Hot Pink)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed Hot Pink)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed Hot Pink)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed Hot Pink)
254 x 177.8 x 76.2mm

25

74p

70p

67p

+ -

Single Wall Lidded Box (Printed Orange)
10 x 7 x 3"
Single Wall Lidded Box (Printed Orange)
10 x 7 x 3"

Single Wall Lidded Box (Printed Orange)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed Orange)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed Orange)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed Orange)
254 x 177.8 x 76.2mm

25

74p

70p

67p

65p

+ -

Single Wall Lidded Box (Printed Purple)
10 x 7 x 3"
Single Wall Lidded Box (Printed Purple)
10 x 7 x 3"

Single Wall Lidded Box (Printed Purple)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed Purple)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed Purple)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed Purple)
254 x 177.8 x 76.2mm

25

74p

70p

67p

65p

+ -

Single Wall Lidded Box (Printed Red)
10 x 7 x 3"
Single Wall Lidded Box (Printed Red)
10 x 7 x 3"

Single Wall Lidded Box (Printed Red)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed Red)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed Red)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed Red)
254 x 177.8 x 76.2mm

25

74p

70p

67p

65p

+ -

Single Wall Lidded Box (Printed White)
10 x 7 x 3"
Single Wall Lidded Box (Printed White)
10 x 7 x 3"

Single Wall Lidded Box (Printed White)
25.4 x 17.8 x 7.6cm
Single Wall Lidded Box (Printed White)
25.4 x 17.8 x 7.6cm

Single Wall Lidded Box (Printed White)
254 x 177.8 x 76.2mm
Single Wall Lidded Box (Printed White)
254 x 177.8 x 76.2mm

25

69p

65p

62p

60p

+ -

Single Wall Cardboard Box
10 x 10 x 6"
Single Wall Cardboard Box
10 x 10 x 6"

Single Wall Cardboard Box
25.4 x 25.4 x 15.2cm
Single Wall Cardboard Box
25.4 x 25.4 x 15.2cm

Single Wall Cardboard Box
254 x 254 x 152.4mm
Single Wall Cardboard Box
254 x 254 x 152.4mm

25

41p

39p

37p

+ -

Double Wall Cardboard Box
11 x 11 x 11"
Double Wall Cardboard Box
11 x 11 x 11"

Double Wall Cardboard Box
27.9 x 27.9 x 27.9cm
Double Wall Cardboard Box
27.9 x 27.9 x 27.9cm

Double Wall Cardboard Box
279.4 x 279.4 x 279.4mm
Double Wall Cardboard Box
279.4 x 279.4 x 279.4mm

15

£1.16

£1.12

99p

99p

+ -

Single Wall Postal Box With Tape
11.8 x 6.7 x 0.8"
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
30 x 17 x 2.1cm

Single Wall Postal Box With Tape
299.7 x 170.2 x 20.8mm
Single Wall Postal Box With Tape
299.7 x 170.2 x 20.8mm

50

31p

30p

28p

27p

+ -

Single Wall Cardboard Box
12 x 9 x 4"
Single Wall Cardboard Box
12 x 9 x 4"

Single Wall Cardboard Box
30.5 x 22.9 x 10.2cm
Single Wall Cardboard Box
30.5 x 22.9 x 10.2cm

Single Wall Cardboard Box
304.8 x 228.6 x 101.6mm
Single Wall Cardboard Box
304.8 x 228.6 x 101.6mm

25

39p

37p

30p

29p

+ -

Single Wall Cardboard Box
12 x 9 x 6"
Single Wall Cardboard Box
12 x 9 x 6"

Single Wall Cardboard Box
30.5 x 22.9 x 15.2cm
Single Wall Cardboard Box
30.5 x 22.9 x 15.2cm

Single Wall Cardboard Box
304.8 x 228.6 x 152.4mm
Single Wall Cardboard Box
304.8 x 228.6 x 152.4mm

25

39p

38p

35p

35p

+ -

Single Wall Cardboard Box
12 x 9 x 9"
Single Wall Cardboard Box
12 x 9 x 9"

Single Wall Cardboard Box
30.5 x 22.9 x 22.9cm
Single Wall Cardboard Box
30.5 x 22.9 x 22.9cm

Single Wall Cardboard Box
304.8 x 228.6 x 228.6mm
Single Wall Cardboard Box
304.8 x 228.6 x 228.6mm

25

42p

39p

36p

+ -

C4 New Style Large Letter Postal Box
12.8 x 8.9 x 0.6"
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
32.5 x 22.6 x 1.5cm

C4 New Style Large Letter Postal Box
325.1 x 226.1 x 15.2mm
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
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
32.6 x 22.7 x 1.6cm

C4 Large Letter Postal Box
325.9 x 227.1 x 16mm
C4 Large Letter Postal Box
325.9 x 227.1 x 16mm

50

29p

28p

26p

+ -

Single Wall Postal Box
13.2 x 7.2 x 0.9"
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
33.5 x 18.2 x 2.2cm

Single Wall Postal Box
335 x 181.9 x 21.8mm
Single Wall Postal Box
335 x 181.9 x 21.8mm

50

27p

26p

24p

23p

+ -

Why Buy Cardboard Postal Boxes?

Whether you're a small business, a sole trader or started selling online it’s always handy to have a decent stock of postal packaging boxes close at hand.

From large to small, square to flat we supply a wide range of cardboard postal boxes to suit your business needs. Whether you need to post a small parcel or something larger the right box for you is one click away.

We make all our mailing boxes from high-quality corrugated cardboard, helping ensure your package arrives safely.  If you’re searching for Royal Mail postal boxes, don’t worry as all our cardboard postal boxes are compatible with Royal Mail guidelines.

We sell both single and double wall cardboard postal boxes giving you a wide variety of options to choose from. All our Royal Mail parcel boxes come flat-packed as standard, helping you save on space. 

Use our handy Box Finder if you're having difficulty locating the right boxes for posting. 

Our range of Royal Mail postal boxes includes -

Discounts On Postal Boxes

Looking to buy postal boxes wholesale? If you buy in bulk from us you can take advantage of our amazing discounts.

Next Working Day Delivery

In a rush and looking for post office parcel boxes last minute? Don't worry, we offer next working day delivery as standard. Order before 13:45pm Monday-Thursday for same day despatch. 

Our Cardboard Boxes

Moving house or need other cardboard boxes for shipping for your business? We also supply everything from removal boxes to storage and filing boxes.