Large Letter Cardboard Envelopes Range - Over 35 Sizes
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Large Letter Sized Cardboard Envelopes

Up to

48%

off

From as little as £7.50 per box of 100

Our Large Letter Cardboard Envelopes are available in over 35 sizes to suit all needs. These envelopes conform to the sizes set by Royal Mail for sending large letters. We offer a range of large letter size cardboard envelopes in brown, manilla, or white. This range includes Board Backed Envelopes, All Board Envelopes, ColomPac® envelopes, MailJacket™ and MailJacket™ Lite. All of our large letter cardboard envelopes feature a handy peel and seal adhesive closure, which means they are quick to pack and secure in the post.

Order Ref Dimensions
Opening x Height
Postal Size
CP 010.01 ColomPac Corrugated Envelopes

CP 010.01
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150mm x 250mm x 50mm Large Letter
152 x 305mm All Board Envelopes

AB9
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152mm x 305mm Large Letter
164 x 239mm All Board Envelopes

AB5PIP
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164mm x 239mm Large Letter
178 x 241mm Board Backed Envelopes - Manilla Printed

BBE241M
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178mm x 241mm Large Letter
178 x 241mm Board Backed Envelopes - White

BBE241W
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178mm x 241mm Large Letter
178 x 241mm Board Backed Envelopes - White Printed

BBE241W-P
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178mm x 241mm Large Letter
178 x 241mm All Board Envelopes

AB5
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178mm x 241mm Large Letter
CP 010.12 ColomPac Lightweight Corrugated Envelopes

CP 010.12
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185mm x 270mm x 50mm Large Letter
CP 010.02 ColomPac Corrugated Envelopes

CP 010.02
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185mm x 270mm x 50mm Large Letter
195 x 195mm All Board Envelopes

AB3
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195mm x 195mm Large Letter
CP 010.03 ColomPac Corrugated Envelopes

CP 010.03
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215mm x 300mm x 50mm Large Letter
216 x 267mm Board Backed Envelopes - Manilla Printed

BBE267M
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216mm x 267mm Large Letter
216 x 267mm Board Backed Envelopes - White

BBE267W
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216mm x 267mm Large Letter
220 x 220mm All Board Envelopes

AB4
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220mm x 220mm Large Letter
222 x 272mm All Board Envelopes

AB7
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222mm x 273mm Large Letter
A4 Board Backed Envelopes - Manilla Printed

BBEC4M
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229mm x 324mm Large Letter
C4
C4 All Board Envelopes

AB10
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229mm x 324mm Large Letter
C4
A4 Board Backed Envelopes - White Printed

BBEC4W-P
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229mm x 324mm Large Letter
C4
A4 Board Backed Envelopes With Window - White Printed

BBEC4W-WP
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229mm x 324mm Large Letter
C4
A4 Board Backed Envelopes - White

BBEC4W
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229mm x 324mm Large Letter
C4
A4 Board Backed Envelopes With Window - White

BBEC4W-W
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229mm x 324mm Large Letter
C4
Size 1 MailJacket Light Cardboard Mailers

MJL1
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235mm x 180mm Large Letter
Size 1 MailJacket Cardboard Mailers

MJ1
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235mm x 180mm x 40mm Large Letter
CP 010.14 ColomPac Lightweight Corrugated Envelopes

CP 010.14
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235mm x 340mm x 35mm Large Letter
CP 010.04 ColomPac Corrugated Envelopes

CP 010.04
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235mm x 340mm x 35mm Large Letter
CP 010.54 ColomPac Corrugated Envelopes - White

CP 010.54
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235mm x 340mm x 35mm Large Letter
248 x 330mm All Board Envelopes

AB11
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248mm x 330mm Large Letter
249 x 249mm All Board Envelopes

AB4PiP
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249mm x 249mm Large Letter
249 x 352mm All Board Envelopes

AB11PIP
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249mm x 352mm Large Letter
CP 015.02 - ColomPac Landscape Corrugated Envelopes

CP 015.02
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270mm x 185mm x 50mm Large Letter
Size 194 MailJacket Light Cardboard Mailers

MJL194
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292mm x 194mm Large Letter
Size 194 MailJacket Cardboard Mailers

MJ194
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292mm x 194mm x 40mm Large Letter
CP 010.13 ColomPac Lightweight Corrugated Envelopes

CP 010.13
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215mm x 300mm x 50mm Large Letter
300 x 300mm All Board Envelopes

AB8
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300mm x 300mm Large Letter
Size 2 MailJacket Light Cardboard Mailers

MJL2
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334mm x 234mm Large Letter
Size 2 MailJacket Cardboard Mailers

MJ2
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334mm x 234mm x 40mm Large Letter
CP 015.04 - ColomPac Landscape Corrugated Envelopes

CP 015.04
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340mm x 235mm x 35mm Large Letter
CP 017.04 Landscape Board Envelope

CP 017.04
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351mm x 248mm x 30mm Large Letter
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