About Smiths

We are a world-class supplier of engineering raw materials. Our objective is to provide all our customers, from the small machine shop to the large multi-national corporation, a supply path that continuously delivers the highest levels of service, quality and value.

Plastic Square Bar

Plastic Forms

Plastic Square Bar

We offer a broad selection of plastic square bars in metric sizes which are available to you ex-stock. Apart from our standard stock range, we also provide plastic square bars which are cut and planed from our plate products. Warpage of our square plastic bars is low even over long lengths. Plastic square bar is suitable for use in a broad range of commercial engineering applications and often in demanding working environments.


Certification is to 2.2 as standard (3.1 is available on request). Many of our plastic engineering materials can be FDA, USP class 6 or ISO 10993 certified.


We process your plastic square bars internally either at our central operations hub in Biggleswade or one of fourteen UK service centres. We offer fast turnaround on all engineering products and will cut your plastic bars to specific lengths and too close tolerances too.

Commitment to Quality

Our industry-leading bespoke IT platform endorses our commitment to quality. We offer a fully embedded quality management system with traceability at its core. All our products are barcoded to ensure that your material is traceable at any point during our care.

We stock Plastic Square Bar in a variety of grades.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Additional Info

To view product datasheets relating to our Plastic Square Bars, please click here.

We offer in-house processing options - for more information, please refer to our processing services.

Read our corporate brochure by clicking here.

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