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Plain Envelopes

Plain envelopes can be bought from us in a variety of colours such as white and manilla, as well as multiple sizes like C4, C5 and DL.

Plain Envelopes
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We found 123 products
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5 Star Value Envelope Pocket Self Seal 90gsm C4 Manilla (250 Pack)

5 Star Value Envelope Pocket Self Seal 90gsm C4 Manilla 250 Pack 889367 F
250
Pack
  • Pack Size: 250 manilla envelopes
  • Closure Type: Self-seal for convenience
  • Envelope Size: C4
  • Opening: Pocket access on the shorter side
£20.62
£17.18 ex. VAT
£17.18
£20.62 inc. VAT
£20.62
£17.18 ex. VAT
£17.18
£20.62 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

New Guardian Envelopes Gusset 130gsm C4 Manilla (100 Pack)

New Guardian Envelopes Gusset 130gsm C4 Manilla 100 Pack 101376 F
100
Pack
  • Pack of 100 C4 Envelopes for A4 Documents
  • 25mm Expanding Gusset - Accommodates Bulky Items
  • Durable 130gsm Paper for Reliable Protection
  • Easy Peel & Seal Closure with Strong Power-Tac Adhesion
£66.85
£55.71 ex. VAT
£55.71
£66.85 inc. VAT
£66.85
£55.71 ex. VAT
£55.71
£66.85 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Gusset Peel and Seal 120gsm C5 White (125 Pack)

Q Connect Envelopes Gusset Peel and Seal 120gsm C5 White 125 Pack 169201 F
125
Pack
  • Pack of 125 white C5 envelopes
  • Peel and seal closure for secure mailing
  • 25mm expanding gusset accommodates bulkier items
  • Suitable for A5 or folded A4 sheets
£20.14
£16.78 ex. VAT
£16.78
£20.14 inc. VAT
£20.14
£16.78 ex. VAT
£16.78
£20.14 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

County Stationery Peel and Seal Envelopes 80gsm DL White (1000 Pack)

County Stationery Peel and Seal Envelopes 80gsm DL White 1000 Pack 523186 F
1000
Pack
  • Large Quantity: 1000 envelopes per pack (20 x 50)
  • Convenient Closure: Peel and seal – no licking needed!
  • Standard DL Size: Ideal for A4 documents and letters.
  • 80gsm Paper Weight: Reliable and durable for everyday use.
£35.90
£29.92 ex. VAT
£29.92
£35.90 inc. VAT
£35.90
£29.92 ex. VAT
£29.92
£35.90 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

5 Star Value Envelope Gusset 25mm Peel and Seal 115gsm C4 Manilla (125 Pack)

5 Star Value Envelope Gusset 25mm Peel and Seal 115gsm C4 Manilla 125 Pack 282936 F
125
Pack
  • Size: C4
  • Gusset: 25mm for larger items
  • Closure: Peel and Seal for swift fastening
  • Quantity: Pack of 125 manilla envelopes
£21.72
£18.10 ex. VAT
£18.10
£21.72 inc. VAT
£21.72
£18.10 ex. VAT
£18.10
£21.72 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Machine Envelope Gummed 90gsm 162mm x 238mm White (500 Pack)

Q Connect Machine Envelope Gummed 90gsm 162mm x 238mm White 500 Pack 141752 F
500
Pack
  • Suitable for use in mailing machines
  • Contains 500 white, gummed envelopes
  • Oversized C5 size: 162 x 238mm
  • Strong 90gsm paper for reliable use
£21.34
£17.78 ex. VAT
£17.78
£21.34 inc. VAT
£21.34
£17.78 ex. VAT
£17.78
£21.34 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Pocket Peel and Seal 100gsm C5 White (500 Pack)

Q Connect Envelopes Pocket Peel and Seal 100gsm C5 White 500 Pack 280224 F
500
Pack
  • Bulk Pack: Contains 500 white envelopes for ample supply.
  • Secure Closure: Features a convenient peel and seal for a tidy, secure seal.
  • Paper Weight: Crafted from quality 100gsm paper for a professional finish.
  • Sheet Compatibility: Suitable for A4 (folded) or A5 (unfolded) sheets.
£26.26
£21.88 ex. VAT
£21.88
£26.26 inc. VAT
£26.26
£21.88 ex. VAT
£21.88
£26.26 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Pocket Self Seal 90gsm C5 Manilla (500 Pack)

Q Connect Envelopes Pocket Self Seal 90gsm C5 Manilla 500 Pack 109720 F
500
Pack
  • Pack Size: 500 manilla envelopes
  • Size: C5, fits A4 folded in thirds or A5 unfolded
  • Paper Weight: 90gsm for reliable use
  • Closure Type: Convenient self-seal closure
£21.58
£17.98 ex. VAT
£17.98
£21.58 inc. VAT
£21.58
£17.98 ex. VAT
£17.98
£21.58 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelope 25mm Gusset Peel and Seal 120gsm 381mm x 254mm Manilla (100 Pack)

Q Connect Envelope 25mm Gusset Peel and Seal 120gsm 381mm x 254mm Manilla 100 Pack 102004 F
100
Pack
  • Dimensions: 381 x 254 x 25mm
  • 25mm expanding gusset for bulky items
  • Pack of 100 durable 120gsm manilla envelopes
  • Strong peel and seal closure for secure mailing
£27.22
£22.68 ex. VAT
£22.68
£27.22 inc. VAT
£27.22
£22.68 ex. VAT
£22.68
£27.22 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Pocket Gummed 70gsm C5 Manilla (500 Pack)

Q Connect Envelopes Pocket Gummed 70gsm C5 Manilla 500 Pack 123286 F
500
Pack
  • Size: C5
  • Quantity: 500
  • Paper Weight: 70gsm
  • Fits: A4 folded or A5 unfolded
£18.05
£15.04 ex. VAT
£15.04
£18.05 inc. VAT
£18.05
£15.04 ex. VAT
£15.04
£18.05 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Pocket Gummed 80gsm C4 Manilla (250 Pack)

Q Connect Envelopes Pocket Gummed 80gsm C4 Manilla 250 Pack 112123 F
250
Pack
  • Suitable for A4 documents
  • Pack of 250 manilla envelopes
  • Reliable gummed flap for secure closure
  • C4 size - ideal for standard posting
£17.62
£14.68 ex. VAT
£14.68
£17.62 inc. VAT
£17.62
£14.68 ex. VAT
£14.68
£17.62 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

5 Star Office Envelopes Recycled Pocket Peel and Seal 115gsm 381mm x 254mm Manilla (250 Pack)

5 Star Office Envelopes Recycled Pocket Peel and Seal 115gsm 381mm x 254mm Manilla 250 Pack 115858 F
250
Pack
  • Pack Size: 250 manilla envelopes
  • Convenient Closure: Peel and seal for easy use
  • Pocket Opening: Access contents from the shorter side
  • Eco-Friendly: Made with 100% recycled content
£30.34
£25.28 ex. VAT
£25.28
£30.34 inc. VAT
£30.34
£25.28 ex. VAT
£25.28
£30.34 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

5 Star Office Envelopes Gusset 25mm Peel and Seal 120gsm C4 White (125 Pack)

5 Star Office Envelopes Gusset 25mm Peel and Seal 120gsm C4 White 125 Pack 284130 F
125
Pack
  • Pack Size: 125 high-quality C4 envelopes
  • Convenient Closure: Features a quick and easy peel and seal closure.
  • Expansive Gusset: 25mm gusset accommodates bulkier items.
  • Paper Quality: Made with 120gsm paper for a professional finish.
£30.46
£25.38 ex. VAT
£25.38
£30.46 inc. VAT
£30.46
£25.38 ex. VAT
£25.38
£30.46 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Basildon Bond Envelopes Wallet Peel and Seal 120gsm DL White (100 Pack)

Basildon Bond Envelopes Wallet Peel and Seal 120gsm DL White 100 Pack 103323 F
100
Pack
  • 100 high-quality envelopes
  • Fits A5 sheets folded once, or A4 sheets folded twice
  • Crafted from smooth, 120gsm white recycled paper
  • Ensures a secure, professional finish and saves time
£14.97
£12.47 ex. VAT
£12.47
£14.97 inc. VAT
£14.97
£12.47 ex. VAT
£12.47
£14.97 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

New Guardian Envelopes Pocket 130gsm C5 Manilla (250 Pack)

New Guardian Envelopes Pocket 130gsm C5 Manilla 250 Pack 101292 F
250
Pack
  • Size: C5
  • Paper Weight: 130gsm
  • Closure: Power-Tac peel and seal with tear strip
  • Pack Quantity: 250 envelopes
£44.02
£36.68 ex. VAT
£36.68
£44.02 inc. VAT
£44.02
£36.68 ex. VAT
£36.68
£44.02 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

5 Star Office Envelopes Recycled Pocket Self Seal 90gsm 381mm x 254mm Manilla (250 Pack)

5 Star Office Envelopes Recycled Pocket Self Seal 90gsm 381mm x 254mm Manilla 250 Pack 103014 F
250
Pack
  • Pack of 250: Contains 250 high-quality manilla envelopes
  • Self-Seal Closure: Features a reliable self-seal for convenience
  • Size: 381 x 254mm, ideal for standard documents
  • Sustainable Choice: Made with 100% recycled materials
£28.68
£23.90 ex. VAT
£23.90
£28.68 inc. VAT
£28.68
£23.90 ex. VAT
£23.90
£28.68 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Wallet Gummed 70gsm DL Manilla (1000 Pack)

Q Connect Envelopes Wallet Gummed 70gsm DL Manilla 1000 Pack 143767 F
1000
Pack
  • Size: 110 x 220mm
  • Quantity: 1000 envelopes per pack
  • Paper Weight: Lightweight 70gsm paper
  • Ideal For: A4/A5 documents, mailing and internal distribution
£23.26
£19.38 ex. VAT
£19.38
£23.26 inc. VAT
£23.26
£19.38 ex. VAT
£19.38
£23.26 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Plus Fabric Envelopes Wallet Peel and Seal 120gsm DL White (500

Plus Fabric Envelopes Wallet Peel and Seal 120gsm DL White 500 127233 F
500
Pack
  • Secure & Professional: Ideal for confidential documents and professional presentations.
  • Durable Material: Crafted from robust 120gsm paper for lasting quality.
  • Convenient Closure: Features a peel and seal closure with a tear strip for easy access.
  • Versatile Size: Fits A5 sheets folded once, or A4 sheets folded twice.
£81.67
£68.06 ex. VAT
£68.06
£81.67 inc. VAT
£81.67
£68.06 ex. VAT
£68.06
£81.67 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Plus Fabric Envelope Wallet Self Seal 120gsm C6 White (500 Pack)

Plus Fabric Envelope Wallet Self Seal 120gsm C6 White 500 Pack 118888 F
500
Pack
  • Pack of 500: Contains 500 bright white C6 envelopes.
  • Secure & Confidential: Opaque blue interior for added privacy.
  • Durable Quality: Crafted from 120gsm paper for a premium feel.
  • Easy to Use: Features a convenient self-seal closure.
£61.42
£51.18 ex. VAT
£51.18
£61.42 inc. VAT
£61.42
£51.18 ex. VAT
£51.18
£61.42 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Value Envelope Plain Non Window 80gsm C4 Manilla (250 Pack)

Value Envelope Plain Non Window 80gsm C4 Manilla 250 Pack 809031 F
250
Pack
  • Pack of 250: Contains a generous supply of high-quality C4 manilla envelopes.
  • Self-Seal Closure: Features a convenient adhesive flap for easy, no-lick sealing.
  • A4 Compatible: Comfortably fits unfolded A4 paper (324x229mm size).
  • Durable 80gsm Paper: Offers reliable protection during mailing and transit.
£14.62
£12.18 ex. VAT
£12.18
£14.62 inc. VAT
£14.62
£12.18 ex. VAT
£12.18
£14.62 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelope Pocket Self Seal 115gsm C3 Manilla (125 Pack)

Q Connect Envelope Pocket Self Seal 115gsm C3 Manilla 125 Pack 125942 F
125
Pack
  • Size: 457x324mm (C3) - Ideal for larger correspondence.
  • Strong & Reliable: Crafted from 115gsm paper for secure transit.
  • Self-Seal Closure: Quick and easy to use - no moisture needed.
  • Pack of 125: Perfect for both business and home use.
£27.82
£23.18 ex. VAT
£23.18
£27.82 inc. VAT
£27.82
£23.18 ex. VAT
£23.18
£27.82 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Pocket Self Seal 80gsm C5 Manilla (500 Pack)

Q Connect Envelopes Pocket Self Seal 80gsm C5 Manilla 500 Pack 122157 F
500
Pack
  • Pack Size: 500 envelopes per pack
  • Size & Compatibility: C5 size, fits A4 folded or A5 unfolded
  • Material: Durable 80gsm paper
  • Convenience: Features a self-seal closure for easy use
£19.54
£16.28 ex. VAT
£16.28
£19.54 inc. VAT
£19.54
£16.28 ex. VAT
£16.28
£19.54 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Pocket Self Seal 115gsm C4 Manilla (250 Pack)

Q Connect Envelopes Pocket Self Seal 115gsm C4 Manilla 250 Pack 160611 F
250
Pack
  • Suitable for A4 documents
  • Pack of 250 manilla envelopes
  • Made with 85% recycled manilla
  • Heavyweight 115gsm paper with self-seal closure
£20.33
£16.94 ex. VAT
£16.94
£20.33 inc. VAT
£20.33
£16.94 ex. VAT
£16.94
£20.33 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

5 Star Office Envelopes Pocket Self Seal 115gsm C4 Manilla (250 Pack)

5 Star Office Envelopes Pocket Self Seal 115gsm C4 Manilla 250 Pack 130612 F
250
Pack
  • Pack Size: 250 C4 (324x229mm) envelopes
  • Convenient Closure: Features a reliable self-seal for easy use.
  • Paper Weight: Made from durable 115gsm paper.
  • Eco-Friendly: Crafted with 100% recycled content.
£20.51
£17.09 ex. VAT
£17.09
£20.51 inc. VAT
£20.51
£17.09 ex. VAT
£17.09
£20.51 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelope 25mm Gusset Peel and Seal 120gsm 406mm x 305mm Manilla (100 Pack)

Q Connect Envelope 25mm Gusset Peel and Seal 120gsm 406mm x 305mm Manilla 100 Pack 141280 F
100
Pack
  • Dimensions: 406 x 305 x 25mm
  • Ideal for catalogues, reports & bulky items
  • 120gsm paper for durable mailing
  • Pack of 100 manilla envelopes with peel & seal closure
£34.30
£28.58 ex. VAT
£28.58
£34.30 inc. VAT
£34.30
£28.58 ex. VAT
£28.58
£34.30 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

5 Star Office Envelopes Pocket Self Seal 90gsm C5 Manilla (500 Pack)

5 Star Office Envelopes Pocket Self Seal 90gsm C5 Manilla 500 Pack 133559 F
500
Pack
  • Pack Size: 500 manilla envelopes
  • Size & Type: C5 (229x162mm) with pocket opening
  • Convenient Closure: Features a reliable self-seal closure
  • Eco-Friendly: Made from 100% recycled materials
£18.66
£15.55 ex. VAT
£15.55
£18.66 inc. VAT
£18.66
£15.55 ex. VAT
£15.55
£18.66 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

New Guardian Envelopes Gusset Peel/Seal 130gsm C4 Manilla (25 Pack)

New Guardian Envelopes Gusset Peel Seal 130gsm C4 Manilla 25 Pack 102300 F
25
Pack
  • Includes 25 durable manilla envelopes
  • Designed for A4 documents with a 25mm expanding gusset for bulky items
  • Crafted from durable 130gsm paper for reliable protection
  • Features a convenient peel and seal closure with Power-Tac adhesion
£22.63
£18.86 ex. VAT
£18.86
£22.63 inc. VAT
£22.63
£18.86 ex. VAT
£18.86
£22.63 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

County Stationery Peel and Seal Envelopes 80gsm C5 White (250 Pack)

County Stationery Peel and Seal Envelopes 80gsm C5 White 250 Pack 523200 F
500
Pack
  • Size: C5 (229 x 162mm) - Ideal for standard correspondence.
  • Quantity: 500 envelopes (20 packs of 25) – A generous supply.
  • Convenient Closure: Peel and seal for quick and easy use.
  • Quality Paper: Crafted from 80gsm paper for a professional feel.
£32.80
£27.33 ex. VAT
£27.33
£32.80 inc. VAT
£32.80
£27.33 ex. VAT
£27.33
£32.80 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelope Pocket Self Seal 115gsm 406mm x 305mm Manilla (250 Pack)

Q Connect Envelope Pocket Self Seal 115gsm 406mm x 305mm Manilla 250 Pack 156398 F
250
Pack
  • Size: 406 x 305mm
  • Paper Weight: 115gsm for reliable protection
  • Closure: Convenient self-seal for quick use
  • Pack: 250 manilla envelopes, 75% recycled
£31.90
£26.58 ex. VAT
£26.58
£31.90 inc. VAT
£31.90
£26.58 ex. VAT
£26.58
£31.90 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelope 25mm Gusset Peel and Seal 305mm x 254 Manilla (100 Pack)

Q Connect Envelope 25mm Gusset Peel and Seal 305mm x 254 Manilla 100 Pack 112032 F
100
Pack
  • Dimensions: 305 x 254 x 25mm
  • 25mm expanding gusset for bulky items
  • Pack of 100 durable 120gsm manilla envelopes
  • Strong peel and seal closure for secure mailing
£35.35
£29.46 ex. VAT
£29.46
£35.35 inc. VAT
£35.35
£29.46 ex. VAT
£29.46
£35.35 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

New Guardian Envelope Peel/Seal 130gsm C4 Manilla (250 Pack)

New Guardian Envelope Peel Seal 130gsm C4 Manilla 250 Pack 111291 F
250
Pack
  • Pack of 250: Contains 250 durable manilla envelopes
  • C4 Size: Designed for unfolded A4 sheets
  • 130gsm Paper: Offers exceptional strength and quality
  • Peel and Seal with Tear Strip: Ensures secure dispatch and easy opening
£72.61
£60.51 ex. VAT
£60.51
£72.61 inc. VAT
£72.61
£60.51 ex. VAT
£60.51
£72.61 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

County Stationery Peel and Seal Envelope 70gsm C6 White (1000 Pack)

County Stationery Peel and Seal Envelope 70gsm C6 White 1000 Pack 924765 F
1000
Pack
  • Quantity: 1,000 envelopes (20 packs of 50)
  • Size: C6 (114 x 162mm)
  • Closure: Easy-peel, self-adhesive
  • Colour: Plain White
£30.22
£25.18 ex. VAT
£25.18
£30.22 inc. VAT
£30.22
£25.18 ex. VAT
£25.18
£30.22 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelopes Recycled Self Seal 100gsm DL White (500 Pack)

Q Connect Envelopes Recycled Self Seal 100gsm DL White 500 Pack 107322 F
500
Pack
  • Pack of 500: Contains 500 white, self-seal wallet envelopes
  • Eco-Friendly: Made from 100% recycled 100gsm paper
  • DL Size: Suitable for A4/A5 sheets folded appropriately
  • Self-Seal: Convenient closure for secure and efficient mailing
£20.98
£17.48 ex. VAT
£17.48
£20.98 inc. VAT
£20.98
£17.48 ex. VAT
£17.48
£20.98 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

County Stationery Peel and Seal Envelopes 90gsm C4 White (500 Pack)

County Stationery Peel and Seal Envelopes 90gsm C4 White 500 Pack 523194 F
500
Pack
  • Pack Size: 500 envelopes (20 sets of 25)
  • Ideal For: Business mail, invoices & important documents
  • Closure Type: Self-seal adhesive for a secure finish
  • Paper Weight: Durable 90gsm paper
£56.72
£47.27 ex. VAT
£47.27
£56.72 inc. VAT
£56.72
£47.27 ex. VAT
£47.27
£56.72 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Value Evolve Envelopes Recycled Pocket Self Seal 100gsm C4 White (250 Pack)

Value Evolve Envelopes Recycled Pocket Self Seal 100gsm C4 White 250 Pack 181440 F
250
Pack
  • Eco-Friendly: Made from 100% recycled 100gsm paper.
  • Size & Format: C4 size, designed for A4 documents.
  • Convenient Closure: Features a quick and easy self-seal closure.
  • Pack Quantity: Includes 250 white envelopes per pack.
£36.34
£30.28 ex. VAT
£30.28
£36.34 inc. VAT
£36.34
£30.28 ex. VAT
£30.28
£36.34 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Q-Connect Envelope Pocket Self Seal 90gsm B4 Manilla (250 Pack)

Q Connect Envelope Pocket Self Seal 90gsm B4 Manilla 250 Pack 130378 F
250
Pack
  • Size: 353 x 250mm (B4)
  • Quantity: Pack of 250 envelopes
  • Paper Weight: 90gsm
  • Closure: Self-seal adhesive flap
£28.00
£23.33 ex. VAT
£23.33
£28.00 inc. VAT
£28.00
£23.33 ex. VAT
£23.33
£28.00 inc. VAT

Order now for dispatch Monday

Order now for dispatch Monday

Plain Envelopes

Find plain envelopes for your mailing and office requirements. Our extensive range includes a variety of sizes, including DL, C4, C5 and B4. Peel and seal and self seal options are also available.

We stock bulk packs to suit businesses and home offices, as well as a wide range of quantities. Choose from different paper weights and colours like white and manilla.

We have the right envelope for your letters, documents and invoices. Envelopes with recycled paper are also available here.

Find more types of envelopes in our full range.

Frequently Asked Questions

Q. Will C5 envelopes fit A4 paper?

Q. What is a windowless envelope?