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ALU1 Range – LPS1175 SR1 (37mm)

Export Worldwide
Made in the UK
Made to Measure
Supply and Fit Nationwide
Product Description

The ALU1-SR1(37) is an elite security solution for both residential and commercial properties, boasting insurance approval and inclusion in the Secured by Design program. This robust shutter is rigorously tested to meet LPS1175 (6.0) standards and holds a Security Rating (SR) of 1, signifying its strength and reliability. Designed to secure window apertures both externally and internally, this shutter can also be adapted for door openings, accommodating structural widths up to 3 meters.

To maintain its high-security rating, installation is critical and the shutter must be attached to approved substrates only. Compatible mounting surfaces include brick, block, aluminium box sections, or steel box sections, offering flexibility for an internal or external application while ensuring optimal stability and security.

Ideal Uses
  • Security conscious residential homes
  • Medium value offices
Technical Specifications


Double-skinned extruded aluminium with security end-locks and, on an external fix, guide bullet locks.

Colours: White or brown. Option to powder coat any RAL / BS colour (surcharge applies).  

Blind Surface: 37.5mm
Weight per m²: 8kg
Maximum Width: 3000mm
Maximum Surface: 9m²


The enclosure is manufactured from extruded aluminium with a powder-coated finish (roll-formed aluminium enclosure on an internal fix).

End caps are pressure moulded aluminium alloy.

Colours: White or brown. Option to powder coat any RAL / BS colour (surcharge applies). 

Guide Height (mm)     Plate Size* (mm)
1050                           150
1535                           165
1820                           180
2795                          205
3550                          250
4700                          300

*Plate sizes are shown as a guide only and may increase depending on shutter width.


Specially designed 60mm heavy-duty guides and bottom slats made from extruded aluminium. 

Colours: White or brown. Option to powder coat any RAL / BS colour (surcharge applies). 


Electric: Single phase tubular motor & remote external key-switch as standard. Numerous options such as group or remote control etc. Manual override facility as required. 

CE compliant with all applicable directives and standards

Options and Variations
  • Polyester powder coated to any standard RAL/BS colour
  • Various methods of control available

Related Products

Architect? Use Our Architect Tools

We have several resources available for architects including CAD drawings and detailed product information.

Having Trouble Measuring?

There are three main methods for fixing your shutter to the aperture. Use our measuring guide to obtain the most accurate quote.

UK Roller Shutters Ltd
Unit 41
Wombourne Enterprise Park
Bridgnorth Road
United Kingdom

Get in Touch

We offer a wide range of roller shutters suitable for a number of different applications. All that choice may be confusing which is why we’re happy to offer a no-obligation consultation.

Our roller shutter supplier experts will discuss your requirements with you, and help you to choose the right roller shutters.

Get in touch today for a free quote.