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Single Wall Cardboard Box - Maximum Small Parcel Size 439x339x143mm / Pack of 15

These cardboard eco-friendly single wall postal boxes have been specifically made to the maximum of Royal Mail's Small Parcel size. Measuring 439 x 339 x 143mm internally, the outer dimensions of this postal carton are just under the maximum size of 450 x 350 x 160mm so you can send your items safely, for less! These corrugated boxes are part of our eco-friendly sustainable packaging range LOOP. Supplied flat-packed in handy bundles of 15, these single wall cartons are easy to assemble and are incredibly versatile. 
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£12.15 ex VAT
(£14.58 inc VAT)
Pack Quantity: 15,
439 x 339 x 143mm / 17.25 x 13.25 x 5.75" (L x W x H)
Our quantity discounts:
No of Packs 1+ 5+ 8+ 20+
Price / Pack ex VAT  £12.15 £10.95 £9.90 £8.85

Product Description

This new cardboard postal box has been added to our range to fit exactly to Royal Mail's maximum Small Parcel size, so you can get the most for your money when sending with Royal Mail. But be aware the maximum weight for Small Parcel is 2kg.  With an internal size of 439 x 339 x 143mm, this cardboard postal carton measures just under 450x350x160mm externally.  For more details on Royal Mail's postal sizes, see our Pricing in Proportion information page.

Ideal for light to medium weight items, these single wall boxes are extremely versatile, enabling you to pack a vast range of your smaller items, whilst offering the protection required through transit or whilst in storage.

Made from rigid corrugated cardboard, with top and bottom flaps for quick and easy sealing with parcel tape, you can ensure your items are packaged safely and securely. There’s a smooth professional Kraft paper finish to label or write on.

You can be sure you are using great sustainable packaging too. These are superior recyclable, reusable postal boxes made from top grade recycled material.

Suitable for home, office as well as mail order and general shipping use our eco-friendly small packing boxes / cartons are supplied flat-packed for easy storage, in convenient bundles of 15 at the cheapest prices online!

Our eco-friendly single wall postal boxes are sized in the order of Length x Width x Height.


Pack Quantity:
439 x 339 x 143mm / 17.25 x 13.25 x 5.75" (L x W x H)
100% Recycled Material
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