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Material Weight

450mm x 324mm (C3) White Board Back Envelopes

£0.56 (Including VAT)

Availability: In stock SKU: BBE450324WHITE Category: Tags: , ,
Quantity Price Each
1 - 99 0.5562
100 - 249 0.5235
250 - 999 0.4908
1,000 - 7,499 0.4581
7,500+ 0.4253


Discover our top-tier White Board Back Envelopes, tailored to provide unrivalled protection for your postal items.

Key Features:

  • Robust Construction: Crafted with a formidable 1000 micron backing board and enhanced by a heavyweight face paper, these envelopes are your trusty shield against potential damage when posting bendable contents.
  • Elegant White Design: Adorned with a sumptuous 120gsm white paper, these envelopes emanate a refined and professional aura, ideal for all your mailing needs.
  • Eco-friendly Choice: Proudly made from recycled materials, our envelopes not only serve your postal requirements but also stand testament to our commitment to the environment.
  • Flexible Quantity Options: Whether you need just one or a bulk order, we’ve got you covered. Our envelopes are available in any desired quantity.
  • Internal Dimensions: The stated measurements of 450mm x 324mm are internal, ensuring your items fit perfectly.
  • Secure Sealing: Equipped with a convenient Peel & Seal mechanism, securing your items is both quick and reliable.

Choose quality, choose durability, choose our White Board Back Envelopes.

Additional information

Size (mm)

450 x 324

Size (cm)

45.0 x 32.4


Board Back

Material Weight


Sealing Type

Peel & Seal



Product Colour Variations
Please note; our commitment to sustainability may result in slight variations in colour shades with our products. Due to their nature, colours can vary slightly from batch to batch. The colours you see on screen can depend on your screen colour set up, and also certain computers that have light detection. We strongly suggest to request a sample from us, which is completely free. However, we offer a full 30 day money back guarantee on all of our standard stock products if you are not completely happy. You can find out more here.

Envelope Flap Variations
We take pride in using eco-friendly processes in the manufacture of our envelopes. Please be aware that some envelopes might have slight variations in flap design from the product photos. This is due to our continuous effort to reduce waste and use available resources responsibly. This doesn’t compromise their functionality or quality.

Peel & Seal Designs
Some of the designs on our peel & seal envelopes can vary. This relates to the branding printed on the inside of the envelope (if any) and also the branding on the peel & seal strip. This doesn’t compromise their functionality or quality.