C6 Envelopes

Versatile C6 Envelopes for Invitations and Everyday Use

C6 envelopes are a great choice for sending A6-sized cards, invitations, or thank-you notes. Measuring 114x162mm, these envelopes are perfect for standard greeting cards and small letters. This means whether you’re preparing wedding invitations, business announcements, or personalised messages for product delivery, C6 envelopes offer a stylish and professional solution.

These popular envelopes are also available in a wide selection of colours and finishes, including classic white and bold reds, as well as textured designs to enhance your messaging.

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133mm x 184mm Grey Gummed Diamond Flap Greeting Envelopes (Qty 1,000)

Boxed: £68.90
Unit: £0.07

133mm x 185mm Recycled Kraft Fleck Gummed Envelopes (Qty 500) 120gsm

Boxed: £16.50

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134mm x 184mm Purple Gummed Diamond Flap Greeting Envelopes (Qty 1,000)

Boxed: £68.90

155mm x 155mm Grey Gummed Diamond Flap Greeting Envelopes (Qty 1,000)

Boxed: £68.90
Unit: £0.07

155mm x 155mm Purple Gummed Diamond Flap Greeting Envelopes (Qty 1,000)

Boxed: £60.00

C6 (A6) Board Back Envelopes - Please Do Not Bend (Qty 250) 114mm x 162mm

Boxed: £28.60
Unit: £0.25

C6 Avocado Green 120gsm Peel & Seal Envelopes (Qty 500) 114mm x 162mm

Boxed: £33.30
Unit: £0.33

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C6 Baby Pink 120gsm Peel & Seal Envelopes (Qty 500) 114mm x 162mm

Boxed: £31.70
Unit: £0.32

C6 Baby Pink 120gsm Peel & Seal Wallet Envelopes (Qty 25) 114mm x 162mm

Boxed: £5.25
Unit: £0.05

C6 Banana Yellow 120gsm Peel & Seal Envelopes (Qty 500) 114mm x 162mm

Boxed: £33.30
Unit: £0.33

C6 Banana Yellow 120gsm Peel & Seal Wallet Envelopes (Qty 25) 114mm x 162mm

Boxed: £6.30
Unit: £0.06

C6 Banker Invitation Gummed Cream 100gsm Envelopes (Qty 500) 114mm x 162mm

Boxed: £24.65

C6 Banker Invitation Gummed White 100gsm Envelopes (Qty 1000) 114mm x 162mm

Boxed: £24.65
Unit: £0.25

C6 Banker Invitation Gummed White 90gsm Envelopes (Qty 1000) 114mm x 162mm

Boxed: £23.80
Unit: £0.24

C6 Black Envelopes 120gsm Peel & Seal (Qty 500) 114mm x 162mm

Boxed: £53.00
Unit: £0.53

C6 Black Gusset 180gsm Envelopes (Qty 200) 162mm x 114mm x 25mm

Boxed: £58.00
Unit: £0.58

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C6 Black Gusset String & Washer Envelopes (Qty 100) 162mm x 114mm x 25mm

Boxed: £52.00
Unit: £0.52

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C6 Black Luxury 180gsm Peel & Seal Envelopes (Qty 250) 114mm x 162mm

Boxed: £32.50
Unit: £0.33

C6 Black String & Washer Envelopes (Qty 100) 162mm x 114mm

Boxed: £44.75
Unit: £0.45

C6 Brilliant White Wove 120gsm Peel & Seal Wallet Envelopes (Qty 25) 114mm x 162mm

Boxed: £5.25
Unit: £0.05

C6 Brilliant White Wove 120gsm Peel & Seal Wallet Envelopes (Qty 50) 114mm x 162mm

Boxed: £8.40
Unit: £0.08

C6 Brilliant White Wove 120gsm Peel & Seal Wallet Envelopes (Qty 500) 114mm x 162mm

Boxed: £28.25
Unit: £0.28

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C6 Brown Fleck Gummed Diamond Flap Greeting Envelopes (Qty 1000) 114mm x 162mm

Boxed: £58.00

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C6 Canary Yellow Gummed Diamond Flap Greeting Envelopes (Qty 1,000) 114mm x 162mm

Boxed: £60.10

C6 Caribbean Blue 120gsm Peel & Seal Envelopes (Qty 500) 114mm x 162mm

Boxed: £33.30
Unit: £0.33

C6 Caribbean Blue 120gsm Peel & Seal Wallet Envelopes (Qty 25) 114mm x 162mm

Boxed: £6.30
Unit: £0.06

C6 Clear Peel & Seal Wallets (Qty 1000) 126mm x 168mm

Boxed: £23.60
Unit: £0.24

C6 Clear Peel & Seal Wallets (Qty 1000) 126mm x 168mm

Boxed: £24.45
Unit: £0.24

Sale

C6 Cocktail Blue 120gsm Peel & Seal Envelopes (Qty 25) 114mm x 162mm

Boxed: £3.05
Unit: £0.03 £4.20

C6 Cocktail Blue 120gsm Peel & Seal Envelopes (Qty 500) 114mm x 162mm

Boxed: £33.30
Unit: £0.33

C6 Cream Wove 120gsm Peel & Seal Wallet Envelopes (Qty 25) 114mm x 162mm

Boxed: £6.30
Unit: £0.06

C6 Cream Wove 120gsm Peel & Seal Wallet Envelopes (Qty 50) 114mm x 162mm

Boxed: £9.45
Unit: £0.09

C6 Cream Wove 120gsm Peel & Seal Wallet Envelopes (Qty 500) 114mm x 162mm

Boxed: £30.45
Unit: £0.30

C6 Diamond White Laid 120gsm Peel & Seal Wallet Envelopes (Qty 500) 114mm x 162mm

Boxed: £45.05
Unit: £0.45

C6 Diamond White Laid 120gsm Peel & Seal Wallet Envelopes (Qty 25) 114mm x 162mm

Boxed: £6.30
Unit: £0.06

C6 Diamond White Laid 120gsm Peel & Seal Wallet Envelopes (Qty 50) 114mm x 162mm

Boxed: £10.50
Unit: £0.11

Whatever your choice, our high-quality C6 envelopes ensure durability, while optional window designs add convenience for address visibility. Order a free sample today or shop bulk orders below to get started.

C6 Envelope FAQs

C6 envelopes are an excellent option for packaging smaller products, thank-you notes, or promotional materials. This along with our wide range of coloured envelopes and branding can enhance the presentation and make your letters stand out. For more information take a look at our FAQs below.

What are C6 envelopes used for?

They are ideal for sending A6-sized cards, invitations, thank-you notes, and smaller promotional materials.

What size is a C6 envelope?

A C6 envelope is 114x162mm and can fit A4 paper folded into four or A5 paper folded in half once. Ideal for sending invitations or written letters.

Can you post C6 envelopes?

For UK post, your envelope will need to be less than 240mm x 165mm and weigh less than 100g, plus the thickness under 5mm, to qualify for this postage rate, so you could use a C6, DL or C5 envelope to fit within this size range. The cost of a standard 2nd class stamp at letter rate is 66p.

What our customers say

Consistently excellent quality products and their turnaround time and customer service is brilliant

Have been using All Colour Envelopes for years and they have never let me down. Our business couldn't survive without them.

Actually really impressed Fantastic prices, and the quality of the products we have received are exceptional.