Royal Mail Maximisers

Our range of Royal Mail Large Letter and Small Parcel mailers have been designed specifically to give the maximum delivery space, yet still fall within the Royal Mailer large letter and small parcel size.

What are royal mail large letter and small parcel sizes?

  • Royal mail parcel size 450 x 350 x 160mm
  • Large Letter size 353 x 250 x 25mm

Our range of Royal Mail Small Parcel and Large Letter compliant mailers have been tried, tested and found to save time and money by the Internet’s biggest retailers…

  • A-CD - a CD sized envelope for mailing out CDs

    A-CD envelope

    180 x 164 x 0-30 mm
    From $58.50 Each

    Looking for quality cardboard CD envelopes?  The A-CD envelopes are Amazon style CD mailers that provide the most cost-effective protection for yo...

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  • E5-SP Royal Mail Small Parcel Cardboard Box

    E5-SP Royal Mail Small Parcel Cardboard Box

    445 x 345 x 155 mm
    From $73.80 Each

    The E5-SP cardboard box is seriously strong with a Box Compression Test Strength (BCT) of 1540N.  These small parcel cardboard boxes are over 20% s...

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  • A3 Envelope

    A3 Envelope

    352 x 249 x 0-30 mm
    From $78.30 Each

    Looking for a large letter envelope to keep weight down but protection up? The Lil A3 is a large letter mailer (13.9 inches x 9.8 inches x 1.0 inc...

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  • A-LTR envelope
    Sold out

    A-LTR envelope

    239 x 164 x 0-30 mm
    From $81.00 Each

    The A-LTR small cardboard envelope is perfectly sized to go through the postal system first class as a Flat / Large Envelope  (Length: 9.4 inches ...

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  • Lil Letterbox - A5max Large Letter

    Lil Letterbox - A5max Large Letter

    215 x 160 x 22 mm
    From $83.70 Each

    Brown in color and guaranteed not to let you down, the Lil A5max Large Letter cardboard box is made from single wall corrugated kraft cardboard (FS...

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  • Lil Letterbox AELL03 max Large letter

    Lil Letterbox AELL03 max Large letter

    345 x 245 x 22 mm
    From $84.60 Each

    Brown in colour and guaranteed not to let you down, the Lil AELL03 max Large letter cardboard box is made from single wall corrugated kraft cardboa...

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  • F3 Flatpack Large Letter Size

    F3 Flatpack Large Letter Size

    352 x 249 mm
    From $86.40 Each

    F3 large letter flatpacks are for shipping A4 brochures, calendars, and DVDs. These are large letter cardboard envelopes.  If you're using stiffen...

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  • Lil AELL01 letterbox packaging
    Sold out

    Lil AELL01

    147 x 138 x 22 mm
    From $97.20 Each

    The Lil AELL01 CD sized cardboard boxes are guaranteed not to let you down, the Lil AELL01 cardboard pizza style postal box is made from FSC certif...

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  • A5 Envelope

    A5 Envelope

    448 x 328 x 0-30 mm
    From $102.60 Each

    Looking for small parcel envelopes to maximize how much you can send in an envelope 17.7 inches x 13.8 inches x 6.3 inches?  The Lil A5 envelope i...

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  • C3 Bukwrap

    C3 Bukwrap

    311 x 240 x 0-50 mm
    From $104.40 Each

    Looking for large letter book wraps to maximise the letter size limits of 13.9 x 9.8 x 1.0 inch?  The C3 bukwrap is a sturdy, rigid cardboard prot...

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  • F5 Flatpack

    F5 Flatpack

    445 x 325 mm
    From $133.20 Each

    The Lil F5 small parcel flatpacks are A3 in size and commonly used for delivering artwork, maps, pictures, frames, and lots of other big, flat ite...

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