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Cardboard Postal Box - Large Letter (A5)

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MCLL03B Cardboard Postal Box - Large Letter (A5)

218mm long x 159mm wide x 20mm high

A5 size brown cardboard postal box 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	£19.19	£15.99	£319.80
250+	50	£15.35	£12.79	£255.80
500+	50	£13.82	£11.51	£230.20
1000+	50	£13.13	£10.94	£218.80

A5 size cardboard postal box features

Suitable for postal delivery straight into a letterbox.
Fits Royal Mail's 'Large letter' category - no need to measure your parcel before posting.
Ensures your package doesn’t stray into the 'Small Parcel' bracket.
Easy to use - just fold the flatpack design and tuck in the flaps.
Post with confidence that your mail contents will be kept safe and secure.
Ideal for a variety of small, flat products.
50 handy postal boxes per pack.
Delivered to you flat - quickly and easily fold into shape.
Reusable and fully-recyclable boxes.

A5 size cardboard postal box - internal dimensions

Internal length: 218mm (9")
Internal width: 159mm (6")
Internal height: 20mm (1")

A5 size cardboard postal box - external dimensions

External length: 238mm (9")
External width: 165mm (6")
External height: 22mm (1")
50 boxes per batch

Please note: Imperial sizes provided to the nearest inch.

A5 size cardboard postal box - packing warning

This box fits Royal Mail's 'Large Letter' guidelines. The cardboard may extend beyond the stated dimensions, but please ensure it is not over-filled.

If the box is packed to the point that it expands too far, you risk being charged in the next category up (Small Parcel).

Polybags is not responsible for any extra postal charges issued if this occurs.

A5 size cardboard postal box - how to dispose

This packaging is constructed using 100% recyclable cardboard, allowing for easy collection in standard curbside pickups or at dedicated recycling locations.

Refer to our helpful recycling locator tool for insights into recycling possibilities in your vicinity.