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Royal Mail Small Parcel Boxes (ULTRA MAXI) - (342mm x 152mm x 430mm) 13.4" x 5.9" x 16.9" (appx)

  • Royal Mail Small Parcel Boxes (ULTRA MAXI) - (342mm x 152mm x 430mm) 13.4" x 5.9" x 16.9" (appx)
  • Product Code: RM-ULTRA-MAXI-SPB#
  • £0.00

FREE SHIPPING on orders over £30 (ex VAT) to Most UK Mainland Addresses
Orders placed after 3.00 pm may not be shipped on the same day

Available Options

This is the Maximum size Royal Mail Qualifying Small Parcel Postal Box.

Like all of our boxes these maximum size Royal Mail Small Parcel size postal boxes are made by us here in the U.K. & offer great protection for items being posted through Royal Mail as small parcels or through courier or parcel networks. Because they qualify as small parcels under Royal Mail small parcel size rules they attract discounted postage. They are ideal for many items when posting goods with either Royal Mail or through courier networks.

Like all of our small parcel PiP boxes they are British made cardboard boxes that can be supplied quickly on a same day or next day service in most cases & can of course be used to post a wide range of items.

Check out our full range of small parcel boxes all of which qualify as small parcels under Royal Mail / Post Office size restrictions — providing an opportunity for extremely cheap postage of your goods.


Wall: Single Wall

Internal Dimensions: 342mm x 152mm 430mm

External Dimensions: 350mm x 160mm x 450mm

Style: FEFCO Style 0427


Unit Weight: 340g (appx)

Need a made to measure box? If you can't find the exact size box you need... contact us about a bespoke or custom made cardboard box today.

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so no nasty surprises at checkout.

With the vast majority of items listed on this site being supplied without an additional charge for postage on orders over £30 NET .

The only time you may have additional charges is when you’re buying bulk quantities, very large items or you’re located offshore or in certain parts of the Scottish Highlands.

Please note that we cannot deliver to PO boxes.

Please check here for Offshore and Scottish Highlands shipping upgrades

If you require a faster delivery, click here for timed shipping upgrades

If you are ordering outside of the UK, please click here to see our international rates