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Clark Multigard® Security Roller Shutter Doors
SR3, SR4 & SR5

High specification security roller shutter door, security rated to SR3, SR4 and SR5

Hurricane, blast, ballistic and radiation applications

Certified by BRE to LPS 1175, issue 8

Clark Multigard® - Security Roller Shutter Doors SR3, SR4 and SR5

Design features

The door has multiple design features which include class leading thermal insulation, an ASL (auto self-locking) mechanism and a smooth and quiet operation.  The Clark Multigard® has a unique lath design, achieving high wind ratings without the need for additional wind end locks.

All models are available up to 8m wide x 10m high.


Its high-performance security characteristics make it the ideal door solution for applications such as:

  • Utilities

  • National infrastructure

  • Military and government facilities

  • Museums and galleries

  • Panic rooms and protected spaces

  • Police and custodial services

  • Banking

  • Manufacturing

  • Bonded warehousing

  • High value retail

  • Self storage

  • Nuclear sites

  • Other secure plants

The Clark Multigard® security roller shutter door is also available for special purpose applications such as hurricane, blast, ballistic and radiation.

Easy to maintain

The Multigard® is one of the only roller shutter doors that can achieve its SR rating without the need for a canopy. This means servicing access is fast and easy. It incorporates split guides allowing fast and efficient curtain repairs following collision damage. This also removes the need for working at height, increasing safety and reducing operational downtime. The door achieves Class 5 wind loading without the need for windlocks which traditionally can be a problem for attracting corrosion, as well as pinch points on the door’s operation.

Click here to view our Red Book Live listing. BRE (Building Research Establishment) is a world leading building science centre with a mission to improve buildings and infrastructure through research and knowledge generation. BRE is known for their rigorous testing procedures and Clark Door’s Multigard SR3, SR4 and SR5 door all passed BRE’s testing first time.

Secured by Design

The Clark Multigard® has been endorsed by Secured by Design, the official police security initiative.

SBD Development Officer, Hazel Goss, said: “We are thrilled and delighted to welcome Clark Door Limited as an SBD member company. The company’s long history and track record of development, expansion and achievement speaks for itself – leading up to the Queen’s Award for Enterprise 2020. We look forward to working with them to help them develop their business further.”

Read Secured by Design’s article on Clark Door

Please get in touch to talk to one of our technical team about Clark Multigard® high security roller shutter doors. We also supply a range of other industrial doors, such as high speed doors and sectional overhead doors.

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Who we work with…

We pride ourselves on working with some of the world’s leading companies including: clients, architects, consultants and construction contractors to deliver innovative custom designed doors for award winning projects. Here are leading companies who have chosen Clark Door for their projects: