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450mm x 324mm (C3) Manilla Board Back Envelopes – PDNB

£0.50 (Including VAT)

Availability: In stock SKU: BBE450324MAN Category: Tags: , , , ,
Quantity Price Each
1 - 99 0.5044
100 - 249 0.4747
250 - 999 0.4451
1,000 - 7,499 0.4154
7,500+ 0.3857


Introducing our top-tier Manilla Board Back Envelopes, designed with utmost precision to cater to your high standards of postal protection.

Key Features:

  • Unwavering Protection: Crafted with a robust 1000 micron backing board paired with a heavyweight face paper, these envelopes offer exceptional durability and are perfect for ensuring bendable items remain unscathed during transit.
  • Classy Manilla Finish: Utilising a premium 120gsm manilla paper, the envelopes exhibit a traditional and elegant look, ideal for both professional and personal use.
  • Eco-Friendly: Made with recycled materials, our Manilla Board Back Envelopes stand as a testament to our commitment to environmental sustainability.
  • Clear Instructions: Printed on the front with the words “Please do not bend” in striking red ink, ensuring your items are treated with the care they deserve.
  • Versatile Quantities: Catering to all needs, be it singular or bulk, we offer unmatched flexibility in quantity choices.
  • Precision Measurements: Guaranteeing a snug fit for your documents with accurate internal dimensions of 450mm x 324mm.
  • Hassle-Free Sealing: Featuring an efficient Peel & Seal mechanism, sealing your items becomes a swift and secure process.

For documents and items that necessitate impeccable protection and a touch of traditional elegance, the 450mm x 324mm (C3) Manilla Board Back Envelopes are the quintessential British choice for your mailing requirements.

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.