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191mm x 191mm x 50 micron (7.5" x 7.5" x 200 gauge)
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Cardboard Postal Box - Large Letter (A6)

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MCLL01B Cardboard Postal Box - Large Letter (A6)

mix inches mm 163mm long x 112mm wide x 20mm high

A6 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	£16.85	£14.04	£280.80
250+	50	£13.64	£11.36	£227.20
500+	50	£12.35	£10.29	£205.80
1000+	50	£11.79	£9.82	£196.40

A6 size cardboard postal box features

Letterbox-friendly postal packaging.
External dimensions designed to meet Royal Mail 'Large Letter' guidelines.
A safe way to avoid extra postal costs.
Simple to use - just fold, tuck and pack.
Lightweight card that offers tough, reliable protection.
Suitable for a range of small, flat products.
Available in handy packs of 50 boxes.
Boxes delivered to you flat, ready to fold into shape.
Reusable and recyclable postal packaging.

A6 size cardboard postal box - internal dimensions

Internal length: 163mm (6")
Internal width: 112mm (4")
Internal height: 20mm (1")

A6 size cardboard postal box - external dimensions

External length: 170mm (6")
External width: 125mm (4")
External height: 22mm (1")
50 boxes per pack

Please note: Imperial sizes provided to the nearest inch.

A6 size cardboard postal box - packing warning

This box is designed to fit Royal Mail's 'Large Letter' guidelines. As it is made of lightweight cardboard, its capacity may extend slightly beyond the stated dimensions, but please ensure it is not over-filled, otherwise you risk it pushing beyond these guidelines.

Polybags is not responsible for any extra postal charges that occur due to a box being over-filled.

A6 size cardboard postal box - how to dispose

This container is crafted from fully recyclable cardboard, making it suitable for pick-up in regular curbside collections or designated recycling points.

Explore our convenient recycling locator tool to find details about recycling options in your local area.