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By Royal Appointment to HM The Queen. BSI Certified FM31516

Clear Biodegradable Bag
152mm x 203mm x 37.5 micron (6" x 8" x 150 gauge)
From £17.41 per 1000
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Mailing Bags with Printed Designs
Mailing Bags with Printed Designs
An exclusive set of designer printed mailers in handy pack sizes.
Our Budget Grip Seal Bags are a cheaper thinner range of the handy resealable bags (with the option of write-on-panels to easy label and catalogue their contents)
Budget Grip Seal Bags
Ideal for sorting
and storing things!
In Grip Seal Bags...

Cardboard Postal Box - Large Letter (DL)

MCLL07B Cardboard Postal Box - Large Letter (DL)
220mm long x 110mm wide x 20mm high
Long brown cardboard postal box (DL size) designed to fit Royal Mail's 'Large Letter' guidelines. 100% recyclable. Boxed in 50's.
Quantity: Cost? Add
Order Quantity No. in pack Price per pack Price per pack Price per 1000
(Inc. VAT) (Ex. VAT) (Ex. VAT)
50+ 50 £16.79 £13.99 £279.80
250+ 50 £13.43 £11.19 £223.80
500+ 50 £12.09 £10.07 £201.40
1000+ 50 £11.49 £9.57 £191.40
 

DL size cardboard postal box features

  • Will fit into a Royal Mail post box and a standard UK letterbox.
  • Designed to meet Royal Mail's 'Large Letter' category so you can post with confidence.
  • Economy mailing boxes that help you save on postage.
  • Flatpack design is simple to use - just fold along the scored lines and tuck.
  • Strong, lightweight postage solution.
  • Ideal for packing long, flat items.
  • Available in packs of 50 flatpack boxes.
  • Ready to quickly fold into shape.
  • Eco-friendly boxes - reuse and recycle.

DL size cardboard postal box - internal dimensions

  • Internal length: 220mm (9")
  • Internal width: 110mm (4")
  • Internal height: 20mm (1")

DL size cardboard postal box - external dimensions

  • External length: 230mm (9")
  • External width: 115mm (4")
  • External height: 22mm (1")
  • Each pack contains 50 boxes

Please note: Imperial sizes provided to the nearest inch.

DL size cardboard postal box - packing warning

The postal box is designed so that its external dimensions meet Royal Mail's 'Large Letter' guidelines, so please ensure it is not over-filled.

If the box is packed beyond its capacity, you risk it moving into the next category up (Small Parcel).

Polybags is not responsible for any extra postal charges issued in such an eventuality.

DL size cardboard postal box - how to dispose

This recyclable cardboard box is ideal for easy collection in standard curbside pickups or at recycling points, ensuring a sustainable choice for disposal.

Find details about recycling options in your area through our accessible recycling locator tool.

See more sizes in this range

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Polybags Ltd is ranked #1 when compared to all other companies in TrustPilot's category "Packaging". See a live feed of more independent Google & Trustpilot reviews here.

100% Recycled Mailing Bag
250mm wide x 350mm length, 55 micron thickness. (Large Letter).
From £18.70 per 200
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100%-Recycled Mailing Bags
Bio and 100%-recycled mailing bags in low quantity handypacks.
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