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Board back envelopes

Board back envelopes

(36 products)

Communication has different purposes, and every professional or company wants their message to be as appealing as possible to achieve the desired effects. However, on this page you will find numerous envelopes with cardboard backs, for when the preservation of the content is of primary importance. Sending important documents to be delivered by post is still a reality despite the emergence of digital, and envelopes with cardboard backs are still used to send books, calendars or other documents, just as when it comes to sending certificates and printed papers that we want to deliver without them bending, the solution is to use the envelope with cardboard back.


  • 7% off

    HB162M

    162x114 mm (C6) Manilla Board Back Envelope

    Sale price £0.13 Regular price £0.14 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 7% off

    HB162W

    162x114 mm (C6) White Board-Back Envelope

    Sale price £0.13 Regular price £0.14 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 11% off

    HB190M

    190x140 mm Manilla Board Back Envelope

    Sale price £0.16 Regular price £0.18 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 10% off

    HB220M

    220x110 mm (DL) Manilla Board Back Envelope

    Sale price £0.18 Regular price £0.20 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 10% off

    HB229MU

    229X162 mm (C5) Manilla Board Back Envelope Unprinted

    Sale price £0.19 Regular price £0.21 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 9% off

    HB229M

    229X162 mm (C5) Manilla Board Back Envelope

    Sale price £0.20 Regular price £0.22 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 9% off

    HB229W-WB450

    White board-back envelope 229x162 mm (C5)

    Sale price £0.21 Regular price £0.23 per item
    • Colour: White
    • Format: Pocket
    • Finish: Wove
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 8% off

    HB229W

    229x162 mm (C5) White Board-Back Envelope

    Sale price £0.22 Regular price £0.24 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 9% off

    HB250176M-120

    250x176 mm Manilla Board Back Envelope

    Sale price £0.21 Regular price £0.23 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 35% off

    HB324M

    324x229 mm (C4) Manilla Board Back Envelope

    Sale price £0.22 Regular price £0.34 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 11% off

    HB229W-WU

    229x162 mm (C5) White Board-Back Envelope

    Sale price £0.24 Regular price £0.27 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 11% off

    HB241W

    241x178 mm White Board-Back Envelope

    Sale price £0.24 Regular price £0.27 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 11% off

    HB250176WU

    250x176 mm White Board-Back Envelope

    Sale price £0.24 Regular price £0.27 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 10% off

    HB254W

    254x178 mm White Board-Back Envelope

    Sale price £0.26 Regular price £0.29 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 10% off

    HB240185W-WB450

    240x185 mm White Board-Back Envelope

    Sale price £0.28 Regular price £0.31 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 10% off

    HB267M

    267x216 mm Manilla Board Back Envelope

    Sale price £0.28 Regular price £0.31 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 9% off

    HB162B

    162x114 mm (C6) Black Board-Back Envelope

    Sale price £0.30 Regular price £0.33 per item
    • Colour: Black
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • Sold out
    9% off

    HB324229M-120

    324x229 mm (C4) Manilla Board Back Envelope

    Sale price £0.31 Regular price £0.34 per item
    • Colour: Manila
    • Format: Pocket
    • Finish: Matt
    • Seal: Peel and Seal
    • Material Weight: 130 Gsm
  • 9% off

    HB267W

    267x216 mm White Board-Back Envelope

    Sale price £0.32 Regular price £0.35 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • Sold out
    11% off

    HB324W-WB450

    324x229 mm (C4) White Board-Back Envelope

    Sale price £0.34 Regular price £0.38 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • Sold out
    11% off

    HB312220W-WB450

    312x220 mm White Board-Back Envelope

    Sale price £0.34 Regular price £0.38 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 10% off

    HB324W

    324x229 mm (C4) White Board-Back Envelope

    Sale price £0.35 Regular price £0.39 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • 10% off

    HB324W-W

    324x229 mm (C4) White Board-Back Envelope

    Sale price £0.38 Regular price £0.42 per item
    • Colour: White
    • Format: Pocket
    • Finish: Smooth
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm
  • HB324WP

    324x229mm C4 White Board Back Printed P/S 120gsm Paper / 600gsm Grey Board

    Regular price £0.39 per item
    • Colour: White
    • Format: Pocket
    • Finish: Wove
    • Seal: Peel and Seal
    • Material Weight: 120 Gsm

Benefits and Features of Cardboard-Backed Envelopes

Cardboard-backed envelopes provide the necessary rigidity to ensure that the contents inside arrive at their destination without folds, creases, or damaged corners.

Thanks to their high-density materials and heavyweight GSM (typically above 110g/m²), these envelopes offer superior protection. The sturdy cardboard backing enhances security, making them ideal for shipping delicate and valuable documents.

Common Uses for Cardboard-Backed Envelopes

These envelopes are widely used for sending printed materials that require extra protection, such as:

  • Photographs, posters, and graphic materials
  • Magazines, catalogs, and professional brochures
  • Certificates, diplomas, and legal or commercial documents
  • Awards, recognitions, and client or partner appreciation letters

The self-adhesive closure with a protective strip ensures a strong and secure seal, preventing accidental opening during transit.

Buying Cardboard-Backed Envelopes Online

Cardboard-backed envelopes are available in various sizes and colors to suit different needs. Some models include a transparent window on the front, allowing for address visibility while still maintaining full protection.

  • The smallest available size is 140 x 140 mm (square format)
  • The largest size is 465 x 368 mm, including C3 format (457 x 324 mm)
  • There are 25 different sizes available

Most cardboard-backed envelopes come in classic colors like manila, white, and black, but you can also find options in yellow, blue, green, red, and orange.

The back is always made of durable cardboard, while the front may be standard paper or kraft paper, often featuring the printed message "DO NOT BEND" to ensure proper handling.