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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.

151 products found
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Envelope C4 80gsm Manilla Self Seal (Pack of 250) WX3470
Envelope DL 90gsm Self Seal White (Pack of 1000) WX3480
C4 Envelopes Self Seal 90gsm White (Pack of 250) WX3499
C5 Envelope 75gsm Self Seal Manilla (Pack of 500) WX3516
Q-Connect B4 Envelope 353x250mm Pocket Self Seal 100gsm White (Pack of 250) KF02896
C5 Wallet Envelope Peel and Seal 120gsm Banana Yellow (Pack of 250) BLK93019
New Guardian Armour C4 Envelopes Gusset Manilla (Pack of 100) A28113
Total 151 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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