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

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SPI Cases

Custom Design

Foam inserts, printing and more

UK trade supplier

Tailored pricing on all orders

Case and foam experts

More than 25 years experience

A stack of SPI plastic cases in multiple colours

Affordable, eco-friendly plastic cases

If you need to present samples or protect and organise your equipment, SPI cases are a great option.

SPI cases are lightweight injection-molded cases manufactured by Maxado. They are available in eight sizes and eight colours. They also feature an integral handle, twin catches, metal hinges and a lid-stay mechanism. Their polypropylene material makes them water-resistant, durable and long-lasting.

At GWP, we have extensive experience in supplying SPI cases and enhancing them by adding bespoke foam inserts that are a perfect fit for your products or equipment. You can also speak with our case experts to discuss your specific requirements and the full range of plastic cases available.

Eight SPI plastic cases in different sizes and colours

SPI case features

SPI cases boast several useful features, enhancing both their overall usability and aesthetic quality.

SPI case sizes

SPI cases are available in eight sizes, the smallest being 165 x 12 x 30 mm and the largest 530 x 385 x 120 mm. They range in weight from 0.113g to 1.6kg. All SPI cases are available in eight colours: black, white, grey, navy, blue, green, yellow, and red.

SPI case size table

Ref. Internal (L x W x H) External (L x W x H) Lid / Base Weight
Swing 165 x 12 x 30 mm 172 x 154 x 34 mm 15 / 15 mm 0.113 kg
Drive 195 x 140 x 40 mm 202 x 166 x 44 mm 20 / 20 mm 0.2 kg
Dart 230 x 165 x 50 mm 239 x 208 x 55 mm 25 / 25 mm 0.3 kg
Jump 270 x 195 x 60 mm 278 x 226 x 66 mm 30 / 30 mm 0.35 kg
Pace 320 x 230 x 70 mm 332 x 287 x 77 mm 35 / 35 mm 0.6 kg
Sprint 380 x 275 x 80 mm 392 x 343 x 92 mm 40 / 40 mm 0.8 kg
Pounce 450 x 325 x 100 mm 463 x 373 x 108 mm 50 / 50 mm 1.05 kg
Glide 530 x 385 x 120 mm 546 x 437 x 130 mm 60 / 60 mm 1.6 kg

SPI case colours









Custom SPI cases

At GWP, we can customise any SPI case you source from us. A range of standard and bespoke options and accessories allow you to add branding, improve usability, and provide greater item protection.

A plastic case with black and blue custom foam inserts

Custom foam inserts

Custom engineered foam inserts improve protection, presentation, and organisation.

A black case with digitally printed logos

Printed SPI cases

Add simple logos, graphics, instructions and information using either screen or digital printing.

A black plastic case with in-mould labelling design

In-mould labelling

Have intricate, full colour graphics and imagery moulded into your cases surface during manufacture.

A yellow plastic case with red clips

Catch colours

Select matching or contrasting catch colours to elevate the appearance of your SPI cases.

Engineered foam inserts

foam for cases

Available for all cases

High-quality foam inserts can enhance any SPI case (or alternative) your business uses.

expert design

Expert foam design

Work alongside an experienced design team to create custom-made SPI case inserts.

branded foam

Aesthetic appeal

A vast range of colour and branding options (including laser-etched logos) enable a striking visual appearance.

UK manufactured

UK manufactured

All foam inserts/packaging are manufactured in house at GWP, ensuring the highest quality.

Official SPI case suppliers

If your business needs SPI cases or any product or sample case, GWP should undoubtedly be your first point of call.

Being independent allows us to offer you cases from virtually every case manufacturer in the UK and beyond (including WAG, Maxado Excellent, and Hofbauer). It also means you can get impartial, unbiased and trustworthy advice on the best option for your specific application.

GWP Protective is also one of the UK’s largest foam converters. This means that any case you source from us can be expertly enhanced with custom foam inserts. Buying your cases and foam together, rather than from separate suppliers, improves compatibility, fit, appearance and overall quality while also reducing costs.

An in-house design team will guide you through every step of the process, while an experienced and knowledgeable team of experts will help with everything else, including a wide array of branding options.

Add competitive pricing, no-obligation quotes, and a discernible focus on customer service, and you have a truly winning combination. Simply complete the contact foam, and we’ll do the rest.

What size SPI cases are available?

SPI cases are available in eight carefully selected sizes. The smallest is 165 x 120 x 30 mm (Swing), and the largest is 530 x 385 x 120 (Glide). Please note that these dimensions refer to the case interiors.

Are SPI cases available in brand colours?

SPI cases are available in eight standard colours: black, white, navy, yellow, blue, green, grey, and ruby (red). Custom colours are available, although subject to relatively high order volumes. It is also possible to coordinate or contrast the catch colours.

Can SPI cases be printed or branded?

The smooth exterior surfaces of the SPI cases make them perfect for adding logos, imagery, and information. In addition to digital and screen printing, you can also opt for in-mould labelling, whereby the graphics are moulded into the case during manufacture.

Can I add foam inserts to SPI cases?

SPI cases are perfect for use with custom foam inserts. GWP Protective can manufacture foam inlays that are a perfect fit for the chosen cases and the samples, tools or parts you are storing/transporting within them.

What is a ladder hinge?

One of the unique features of the SPI cases is the ladder hinge. This feature allows the cases to remain open at 90 degrees, making them perfect for displaying products or samples. Please note that you can remove this if required.

Can I buy a single SPI case?

GWP Protective typically supplies businesses and professionals with their case requirements. While we have no minimum order quantities—you can have a single case with foam inserts—buying in larger volumes significantly improves the price. For a one-off empty case (e.g., for a hobbyist), it may also be worth looking at specialist online retailers. If you are unsure, please ask.

SPI case alternatives

If SPI Cases are not exactly what you need, we can offer you the broadest range of alternative plastic cases from a single UK supplier.

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    Speak with our UK-based plastic case experts

    Dan Wellings

    Dan Wellings

    Product Adviser
    01722 416 440

    Richard Coombes

    Richard Coombes

    General Manager
    01722 416 440

    Ian Heskins

    Ian Heskins

    Sales Director
    01793 754 444

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