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Plain Envelopes

Our range of plain envelopes come in convenient multipacks, with a wide variety of colours and closures to choose from. Perfect for mailing documents or letters, our versatile envelopes are ideal for businesses and personal use. Don't forget to explore our address labels for a complete mailing solution. Upgrade your mailing room today with our range of envelopes and mailing bags.

137 products found
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Q-Connect Envelope 406x305mm Pocket Self Seal 100gsm Manilla (Pack of 250) KF3536
Q-Connect DL Envelopes Wallet Self Seal 120gsm White (Pack of 1000) 81414
Q-Connect C5 Envelopes Pocket Self Seal 100gsm White (Pack of 500) KF97367
Blake PurelyEveryday Dl 80gsm Self Seal White Envelopes (Pack of 50) 12882/50PR 12882/50PR
Blake PurelyEveryday C4 90gsm Self Seal White Envelopes (Pack of 50) 12891/50PR 12891/50PR
Blake Everyday DL Wallet Env Plsl Wht Pack of 250 5055559770794
Evolve C5 Envelopes Recycled Self Seal 100gsm White (Pack of 500) RD7893
Evolve C4 Envelopes Recycled Pocket Self Seal 100gsm White (Pack of 250) RD7891
County Stationery C4 Peel and Seal Envelopes White x25 (Pack of 20) C509
County Stationery C5 Peel and Seal Envelopes x25 White (Pack of 20) C513
5 Star DL Envelope Self Seal 90gsm White (Pack of 1000) 88469
5 Star C4 Pocket Envelope Self Seal 100gsm White (Pack of 250) 553266
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Total 137 products

FAQs:

  • What is a windowless plain envelope? A windowless plain envelope is a standard envelope without a transparent window. It provides a blank surface for addressing and sealing, suitable for mailing documents, letters or other flat items securely without revealing their contents through a window opening.
  • What envelope sizes fit through a letterbox? Standard envelope sizes that fit through letterboxes in Ireland typically include DL (110mm × 220mm) and C5 (162mm × 229mm). These sizes are commonly used for posting letters, invoices and documents and are designed to fit easily through standard letterbox slots.
  • How do you use self-sealed envelopes? To use self-sealed envelopes, simply insert your documents, letters or items into the envelope. Peel off the protective strip covering the adhesive on the flap, then press the flap firmly against the envelope to seal it securely without needing additional moisture or glue.
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