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Alpha Rail is certified by DAS Certification for ISO 9001 and 14001. This means the processes we use in the manufacture of our products are assessed by an external third party body for compliance to the highest standards. We are also members of Constructionline which is the UK’s register of pre-qualified local and national construction contractors and CHAS (Contractors Health & Safety Assessment Scheme) accredited.

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Trip Rail Technical Drawings

Home > Technical Drawings > Trip Rail Technical Drawings

Trip rail or knee rail offers protection to grassed or planted areas. They also act as an effective deterrent to drivers who would otherwise seek to park free of charge away from public highways. Can be provided with a circular or square section top rail to suit client requirements.

The tabs below provide a detailed drawing that you may download, as well as size and fixing options. Click on a drawing to view it in PDF format.

If you require any further information for your project please do not hesitate to contact us.

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Fixing Options



Rail: Ø42.3x3mm CHS

Posts: 70x70x3 RHS

Baseplate: 5mm thickness

Finish: Hot dipped galvanised to BS EN ISO1461

Colour: Polyester powder coated in a RAL colour of your choice