Metsec’s Purlins Division is the UK’s largest designer and manufacturer of light gauge galvanised steel purlins, side rails and mezzanine floor systems. Metsec offer a wide range of Z, C and Mezzanine floor sections designed to provide optimal levels of structural performance in roof, wall and mezzanine floor constructions.

We focus on adding value through expert design, precision manufacturing and on-time delivery. Our aim is to provide excellent service, and quality products that deliver cost effective solutions to our customers.

Key Benefits




For more information visit our our downloads page which has access to our purlin technical manual, detailing sheets and section profiles or find them at the bottom of this page.

Purlins Roof Systems

A fully compatible range of Z-section profiles complete with a wide range of accessories

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Side Rails

A fully compatible range of Z and C-section profiles complete with a wide range of accessories

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Mezzanine Floors

A comprehensive range of mezzanine floor systems allow the quick and easy erection of additional internal floor space.

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Purlins and Side Rails Downloads

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Our software optimises the design of purlins, side rails and mezzanine floor joists. Our latest release incorporates both British Standards and Eurocodes into one piece of software.

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Technical Details

Technical details for the construction of purlins, side rails, eaves beams and mezzanine floor joists

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UKCA Mark Purlins

application/pdf|314 KB

Purlin Technical Manual

application/pdf|10 MB

Purlin Section Profiles

application/zip|9 MB

Purlin IFC Files

application/zip|404 KB

Purlin Detailing Sheets

application/pdf|506 KB

MetSPEC14 - Design Software

application/zip|85 MB

CE Marking Guidance

application/pdf|356 KB