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The widest range of protective case options from an independent UK supplier.

Market leading ESD safe packaging for any static sensitive products and components.

Huge range of options and impartial advice on genuinely sustainable packaging for your business.

PIP Boxes

PIP boxes
Royal Mail parcel boxes

Royal Mail parcel boxes

PIP boxes (pricing in proportion) are a great solution to minimise the costs your business incurs from shipping orders via Royal Mail. By adhering to defined sizes, these boxes allow your business to take advantage of specific pricing bands.

The framework still allows you to select from varying designs, sizes, and options, including standard cases (0201), die-cut boxes (0427), and panel wraps. You can also select from various optional inserts, material colours and finishes, and printing.

GWP Packaging designs and manufactures bespoke PIP boxes. Our expert designers ensure that you get a perfectly sized carton that can reduce your costs and provide the optimum level of protection during transit.

  • No obligation
  • Free, expert advice
  • Competitive pricing

Benefits of PIP boxes

By working with GWP to create your Royal Mail parcel boxes, you can expect:

  • Sizes that maximise space whilst adhering to Royal Mail pricing bands.
  • Material grade chosen based on your products, application and budget.
  • A range of designs proven to protect contents during shipping.
  • Optional print to enhance the opening experience for customers.
  • Supplied flat for quick and easy assembly by your staff.
  • Easily recycled by your customers.
  • Sustainably manufactured in the UK using FSC certified materials.
A postman delivering a parcel in a Royal Mail PIP box

Royal Mail box sizes

PIP Size Max Length Max Width Max Depth Max Weight Delivery
Letter 240 mm 165 mm 5mm 0.1 Kg £1.70 / £0.87
Large Letter 353 mm 250 mm 25 mm 0.75 Kg 0.10 Kg = £3.15 / £1.55
0.25 Kg = £3.60 / £2.00
0.50 Kg = £3.60 / £2.40
0.75 Kg = £3.60 / £2.70
Small Parcel 450 mm 350 mm 160 mm 2 Kg 02 Kg = £4.99 / £3.90
Medium Parcel 610 mm 460 mm 460 mm 20 Kg 02 Kg = £7.19 / £6.29
10 Kg = £8.99 / £7.89
20 Kg = £13.69 / £11.89
Large Parcel > 610 mm OR > 460 mm OR > 460 mm 30 Kg

What our customers say...

FAQs

What does PIP stand for?

PIP stands for “pricing in proportion.” This relates to the defined sizes set out by Royal Mail in 2013, which determine the maximum sizes and weights of letters and parcels for specific pricing bands. These are split into what have become known as small letter, large letter, small parcel, medium parcel, and, finally, large parcel.

What material is used for PIP boxes?

A single flute corrugated (cardboard) material is typically used to maximise the available space within the box or packaging and minimise weight. However, the specific grade (E flute / B flute / etc.) will depend on how heavy the item within is and what levels of protection are required. GWP can advise on the most suitable material for your specific application.

Can PIP boxes be customised?

As GWP Packaging designs and manufactures all PIP boxes to your specific requirements, you can customise them in a number of ways. This includes the material type (e.g., white or kraft finish) and a wide range of one, two, or full-colour printing types.

What is the largest size PIP box?

Royal Mail categorises any boxes exceeding 610, 460, or 460 mm (length x width x depth) as large parcels. Please note, however, that this category has a weight limit of 30 kg. If you frequently ship larger or heavier parcels than this, using a courier with bespoke-sized boxes (tailored to your items) is typically more cost-effective.

Should I use standard or custom-size postal packaging?

If you are a start-up or only process very low volumes of orders, stock-sized products such as those found from distributors and online shops are likely more cost-effective. However, if your business sends mid to high volumes of orders, then using bespoke packaging could reduce your costs significantly.

A person holding a Royal Mail large parcel box in a sorting office

Why GWP Packaging?

The outside of GWP Packaging's manufacturing site in Cricklade, Wiltshire

35+ years of experience

We have extensive experience, successfully designing and manufacturing eCommerce packaging for as long as businesses have been selling online.

A GWP Group employee in a warehouse

UK packaging experts

We have a friendly team of award-winning packaging experts at our UK sites, including designers, sales, customer support and manufacturing teams.

A team of packaging designers working on a customer brief

Competitive advantage

Our approach, coupled with in-house manufacture, means you can benefit from reduced costs, better efficiency, more sales, and improved sustainability.

Macfarlane Group warehouse

A business you can trust

Although operating as an independent specialist, GWP Group are proud to be part of Macfarlane, the UK’s largest protective packaging distributor.

Disclaimer: Application images on this page may have been enhanced or created specifically to illustrate a products features and/or potential uses. Please see our content policy for further details.

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    Speak with our UK-based packaging experts

    The information on this page has been collated, checked and approved by several of our corrugated packaging experts:

    Bill Chapman, GWP Packaging

    Bill Chapman

    Product Adviser

    [email protected]
    01793 754 444

    Jason Edgeworth, GWP Packaging Sales Manager

    Jason Edgeworth

    Sales Manager

    [email protected]
    01793 754 444

    David Mason, GWP Packaging Sales Director

    David Mason

    Sales Director

    [email protected]
    01793 754 444

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