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By Royal Appointment to HM The Queen. BSI Certified FM31516

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Cardboard Postal Box - Large Letter (DL)

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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.

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Size diagrams Popup & zoom

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.