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GWP Packaging

Corrugated cardboard packaging expertise and innovation

GWP Protective

Widest range of protective cases with custom foam in the UK


UK leading independent Correx® packaging manufacturer

GWP Conductive

Providing cutting edge ESD safe packaging for 30+ years

GWP Coatings

Supplying sheet plants with coated corrugated material

Reduce packaging costs

A range of strategies and ideas to reduce your ongoing packaging costs

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Protection for your products and equipment to prevent costly damage in transit

Improve packaging efficiency

Streamline your operations, enhancing efficiency and productivity

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Minimise the environmental impact of your packaging and business

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Custom packaging to your exact requirements, designed by an award winning team

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A range of guides, tips and detailed articles to improve your packaging

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Examples of successful packaging, and how your business can benefit

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Telescopic Boxes

Custom design

Tailored to your requirements

UK trade supplier

Huge product selection

Reduce costs

Range of strategies and services

Adjustable telescopic boxes
Extra large telescopic box
Printed telescopic boxes
Adjustable telescopic boxes
Wire stitched telescopic box

Size Adjustable Cardboard Boxes

Flexible telescopic shipping boxes for diverse product ranges

Telescopic boxes provide a flexible way to ship different products / quantities, making them perfect for ecommerce businesses that ship a diverse range of products.

Produced from durable corrugated material, they are manufactured in bespoke sizes to best match the requirements of your fulfilment operations. Supplied flat, they can also aid fulfilment velocity, and can feature print and other features too. Read More

Available Colours:

Brown Kraft cardboard material swatch
White cardboard material swatch
Cardboard with single colour print swatch
Full colour printed cardboard swatch
  • No obligation (and no pressure) quotes for any packaging
  • Free and impartial advice from UK based experts
  • Competitive pricing and full customisation options
FSC logo applied to Packaging manufactured by GWP (certificate FSC_C161914)

This product
can be
FSC® certified
on request


Detailed information on telescopic boxes

If you only ship a very limited range of products from your online store – or they are all of a very similar size – making use of custom sized ecommerce boxes provides a huge range of benefits.

But what if all your products are different sizes? Or you send varying combinations of products, making the sizes of box required vary significantly?

Well, one option, rather than having a huge inventory of different sized ecommerce packaging, is to use telescopic boxes. These boxes feature a separate lid and base, and with the lid having the ability to be moved up and down as required, it allows the internal size of the box to be altered.

This in turn allows for multiple different sizes of product or order to be accommodated.

Printed telescopic boxes

Besides this size flexibility, there are other benefits too.

This includes the nature of the design meaning that, even using a single wall material, telescopic boxes are very sturdy and durable (the material folds to make double / triple wall construction in certain parts).

They are also supplied flat to save on transit and storage costs, yet are easy and quick to assemble (helping with staff productivity and efficiency).

Telescopic boxes can also be printed using a range of methods, allowing you to add logos, branding, handling instructions and promotional messages. And besides this, they are fully recyclable and biodegradable.

Even though telescopic boxes are adjustable by their nature, GWP will still manufacture any postal boxes (and accompanying inserts if required) to bespoke sizes and specifications. This means not only more efficient use of material (and minimising secondary packaging), but allows analysis of which sizes will allow your ecommerce business to be most efficient.

Key Benefits of telescopic cardboard boxes at a glance

  • Adjustable design allows you to ship different sized items with ease
  • Manufactured in bespoke sizes to match your products / typical orders
  • Helps to reduce the size of your packaging inventory (and maximise cost efficiencies)
  • Sturdy construction thanks to folding design prevents transit damage
  • Supplied flat to save on storage space / costs
  • Easily assembled for improved packing and fulfilment times
  • Can be printed with logos, instructions and graphics
  • Fully recyclable and environmentally friendly


Common questions on telescopic boxes

Please see below for a range of often asked questions about telescopic boxes.

What are telescopic boxes manufactured from?

Telescopic boxes are typically manufactured from a single wall cardboard. However, due to the folding nature of the design, many parts of the constructed box are actually double or even triple walled. This makes them durable enough for a range of applications.

Will these boxes fit all of my products?

Telescopic boxes allow you to adjust the height of the packs, allowing you to accommodate different sizes or combinations of products. However, GWP will also manufacture these bespoke to your requirements, ensuring that virtually any product can be shipped safely.

Can telescopic boxes be printed?

Telescopic boxes with printing provide a number of benefits. This includes adding your logo and branding, handling instructions for couriers, and even returns or other important info for the end consumer. All telescopic boxes sourced from GWP can be printed using a number of methods.

Are telescopic boxes recyclable?

Being manufactured from corrugated cardboard, telescopic boxes are easily recycled (including kerb side recycling schemes). This not only reduces your ecommerce business’ environmental impact, but is a big plus point for your customers too.

Can I purchase a single telescopic box?

Unfortunately GWP are not able to supply “one off” boxes to individuals, being geared towards serving business and trade customers. If you need a very low volume, an online retailer of packaging may be your best option.

Tailored Pricing / Sizes

No obligation quotes on packaging made to measure

Looking for off the shelf packaging? Or a one off box? Unfortunately GWP Packaging are not able to help with requirements such as this, as every box we supply is manufactured bespoke to your requirements.

Whilst this regrettably means GWP cannot help individuals looking for packaging, as a business we are perfectly placed to help companies shipping mid to high volumes of products, and that could benefit from the many advantages that using bespoke corrugated packaging brings (improved protection, quicker packing, lower costs – to name but a few).

This approach also means you will not find pricing for telescopic or indeed any other packaging on this site. But, your business can get a fully tailored quote for exactly what you need, with no obligation. Not only does this means your packaging will work out more cost effective in the long run, but also that you will only pay for exactly what you need.

Customisation / Options

Bespoke options for your telescopic packaging

There are a number of ways in which you can enhance your telescopic boxes. This includes printing and specialist coatings (available from GWP Coatings) such as water resistance.

Full colour printed boxes

Full Colour Printing / Graphics

Detailed photographic quality imagery

Specialist packaging coatings

Specialist Surface Coatings

Water, static, abrasion & corrosion protection

Foam end caps

Foam Inserts / End Caps

Highest levels of protection in transit

1 or 2 colour printed packaging

Simple 1 or 2 Colour Print

Add basic branding, instructions, etc.

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    Contact a member of our sales & support team directly

    John Elliott GWP Packaging

    John Elliott

    Product Adviser
    01793 754 444

    Bill Chapman, GWP Packaging product adviser

    Bill Chapman

    01793 754 444

    Ian Heskins

    Ian Heskins

    New Business Director
    01793 754 444

    Phone GWP Packaging

    01793 754 444

    Mon – Fri 08.00 – 17.00

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    Whether your business needs telescopic boxes or other forms of ecommerce packaging, you can source this from GWP Packaging...