New-guardian Gusset Envelopes
Here you can find our huge range of high quality gusset envelopes. These envelopes will take a larger amount of paper compared to a standard envelope. We have a range of envelope sizes including the common C4 gusset and C5 options. Generally gusset envelopes with a window and without have the same closure type (peel and seal) which gives a longer shelf life.
There are a few different closure options available which include peel and seal, gummed as well as self seal envelopes. We also have a variety of colours and strengths. Gusset envelopes also have the added option of how wide you would like them to expand. Generally this is around 25mm however there are options of up to 50mm. A popular option is the New Guardian heavyweight Envelopes peel and seal. These are made using 130gsm manilla paper making them stronger and able to withstand the postal process.
If you cannot find the Gusset Envelopes you are looking for or have any questions regarding any of our products then why not call our friendly UK team, they are always happy to answer any questions or help you in your search.
Our top sellers in Gusset Envelopes
5 Star Office Envelopes C4 Gusset 25mm Peel and Seal 115gsm Manilla [Pack 125] 9 ...
82% OffRRP £144.34120.28 SAVE £98.84
Now only £25.73£21.44
View Deal5 Star Office Envelopes 381x254mm Gusset 25mm Peel and Seal 115gsm Manilla [Pack ...
75% OffRRP £178.84149.03 SAVE £111.49
Now only £45.05£37.54
View DealQ-Connect C5 Envelopes Gusset Peel and Seal 120gsm White (Pack of 125) KF02889 K ...
92% OffRRP £345.79288.16 SAVE £265.14
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View Deal5 Star Office Envelopes C4 Gusset 25mm Peel and Seal 120gsm White [Pack 125] 930 ...
78% OffRRP £126.71105.59 SAVE £82.61
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View Deal-
New Guardian C4 Envelopes Gusset Peel/Seal Manilla (Pack of 25) F27666 JDF27666
Ideal for mailing bulky items such as catalogues, reports, brochures and more, these ...
SAVE 58% off RRP
Only £20.82 inc VAT£17.35 exc VAT
Product Code: JDF27666
Stock: 6
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New Guardian C4 Envelopes Gusset 130gsm Manilla (Pack of 100) E27266 JDE27266
Ideal for mailing bulky items such as catalogues, reports, brochures and more, these ...
SAVE 62% off RRP
Only £65.87 inc VAT£54.89 exc VAT
Product Code: JDE27266
Stock: 119
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New Guardian Envelope Gusset 406x305x25mm Manilla (Pack of 100) B27326 JDB27326
Ideal for mailing bulky items such as catalogues, reports, brochures and more, these ...
SAVE 66% off RRP
Only £88.21 inc VAT£73.51 exc VAT
Product Code: JDB27326
Stock: 8
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New Guardian Envelope P/Seal 381x254x25mm Manilla (Pack of 100) M27466 JDM27466
Ideal for mailing bulky items such as catalogues, reports, brochures and more, these ...
SAVE 58% off RRP
Only £89.80 inc VAT£74.83 exc VAT
Product Code: JDM27466
Stock: 8
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New Guardian Envelopes Mini Pack Peel & Seal Gusset 130gsm C4 324x229x25mm Manilla F27666 [Pack ...
New Guardian manilla envelopes are made from strong environmentally friendly two-tone...
SAVE 57% off RRP
Only £14.47 inc VAT£12.06 exc VAT
Product Code: 4039554
Stock: 22
From 2 working days -
New Guardian Envelopes FSC Hvyweight Peel & Seal Gusset 130gsm 241x165x25mm Manilla L27306 [Pack...
New Guardian manilla envelopes are made from strong environmentally friendly two-tone...
SAVE 57% off RRP
Only £34.24 inc VAT£28.53 exc VAT
Product Code: 315347
Stock: 6
From 2 working days -
New Guardian Envelopes FSC Hvyweight Peel & Seal Gusset 130gsm C4 324x229x25mm Man E27266 [Pack ...
New Guardian manilla envelopes are made from strong environmentally friendly two-tone...
SAVE 57% off RRP
Only £50.78 inc VAT£42.32 exc VAT
Product Code: 311382
Stock: 32
From 2 working days -
New Guardian Envelopes FSC Hvyweight Peel & Seal Gusset 130gsm 305x250x25mm Manilla B27166 [Pack...
New Guardian manilla envelopes are made from strong environmentally friendly two-tone...
SAVE 57% off RRP
Only £52.20 inc VAT£43.50 exc VAT
Product Code: 311384
Stock: 8
From 2 working days -
New Guardian Pocket Gusset Envelope C4 Peel and Seal Plain Power-Tac 25mm Gusset 130gsm Manilla (Pac...
Send bulky items with confidence in these high quality manilla gusset envelopes which...
SAVE 55% off RRP
Only £53.64 inc VAT£44.70 exc VAT
Product Code: EXR58717BG
Stock: 45
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New Guardian Envelopes FSC Peel & Seal Window Gusset 130gsm C4 324x229x25mm Manilla J27366 [Pack...
New Guardian manilla C4 envelopes are made from strong two-tone 130gsm premium paper,...
SAVE 57% off RRP
Only £54.98 inc VAT£45.82 exc VAT
Product Code: 315357
Stock: 25
From 2 working days -
New Guardian Envelopes Heavyweight Peel & Seal Gusset 130gsm 350x248x25mm Manilla M29066 [Pack 1...
New Guardian Manilla Gusset Envelopes. Send bulky items with confidence in these high...
SAVE 57% off RRP
Only £57.67 inc VAT£48.06 exc VAT
Product Code: 4039679
Stock: 3
From 2 working days -
New Guardian Pocket Gusset Envelope C4 Peel and Seal Window Power-Tac 25mm Gusset 130gsm Manilla (Pa...
Send bulky items with confidence in these high quality manilla gusset envelopes which...
SAVE 53% off RRP
Only £59.66 inc VAT£49.72 exc VAT
Product Code: EXR58724BG
Stock: 35
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New Guardian Gusset Envelope 350x248mm Power-Tac Peel and Seal Plain 25mm Gusset 130gsm Manilla (Pac...
New Guardian Manilla Gusset Envelopes. Send bulky items with confidence in these high...
SAVE 54% off RRP
Only £61.32 inc VAT£51.10 exc VAT
Product Code: EXR58843BG
Stock: 14
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New Guardian Envelopes FSC Hvyweight Peel & Seal Gusset 130gsm 381x254x25mm Manilla M27466 [Pack...
New Guardian manilla envelopes are made from strong environmentally friendly two-tone...
SAVE 57% off RRP
Only £62.80 inc VAT£52.33 exc VAT
Product Code: 311386
Stock: 27
From 2 working days -
New Guardian Gusset Envelope 381 x 254mm Peel and Seal Plain Power-Tac 25mm Gusset 130gsm Manilla (P...
Send bulky items with confidence in these high quality manilla gusset envelopes which...
SAVE 54% off RRP
Only £67.02 inc VAT£55.85 exc VAT
Product Code: EXR58759BG
Stock: 16
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New Guardian Envelopes FSC Hvyweight Peel & Seal Gusset 130gsm 406x305x25mm Manilla B27326 [Pack...
New Guardian manilla envelopes are made from strong environmentally friendly two-tone...
SAVE 56% off RRP
Only £76.85 inc VAT£64.04 exc VAT
Product Code: 311388
Stock: 7
From 2 working days -
New Guardian Envelope 241x165x25mm P/Seal Manilla (Pack of 100) L27306 JDL27306
Ideal for mailing bulky items such as catalogues, reports, brochures and more, these ...
SAVE 56% off RRP
Only £50.58 inc VAT£42.15 exc VAT
Product Code: JDL27306
Stock: out of stock